Cations are always
Question Blank
than the neutral atom.

Answers

Answer 1
Cations are always

1. Smaller than the neutral atom due to lost electrons
2. Cations are always more positively charged than the neutral atom due to a loss of electrons.

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Related Questions

Move the chemistry book down again so it's surface touches the physics book. Quickly move the chemistry book back and forth. What's different when motion is faster?

Answers

Answer:

The temperature of the physics book increases as the chemistry book slides across it.

Explanation:

from plato

The temperature of the physics book increasing as the chemistry book slides across it is the difference when motion is faster.

What is Temperature?

This is defined as the degree of hotness  or coldness of a body and it increases when there is more friction.

When motion is faster , there is an increase in friction and increase in thermal(heat) energy which leads to increase in temperature.

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What is another term for the limbic system?:

A. primitive brain

B. logical brain

C. gender center

D. memory center

Answers

Answer:

a

Explanation:

because the sytem it si locate at the bothe side

A. Primitive brain hope this helped

____ KClO3 = ____ KCl + ____ O2

Answers

Answer:

2KCIO3=2KCI+3O2

Explanation:

1. equalize right side O with left side O- Right side we have 3 and left only 2 so we add 3 in front(on left side)(3*2=6 O on both sides)

2.we add 2 on right side so now we have 6 O on left and 6 O on right and 2KCI

3.Add 2 on right side KCI so on both sides we got 2 KCI

atmospheric pressure at elevations of 8000 feet averages about 0.72 atmospheres. Would a cabin pressurized at 500 mm hg meet federal standards

Answers

Answer:

Yes, but it must be kept at that value and do not let it to decrease more.

Explanation:

Hello.

In this case, in order to substantiate whether the cabin meet the federal standards, we need to convert the 500 mmHg to atm and compare the result with 0.72 atm by knowing that 1 atm equals 760 mmHg:

[tex]500mmHg*\frac{1atm}{760mmHg} \\\\=0.66atm[/tex]

Thus, since 0.66 atm is 0.06 atm away from the federal standard we can infer that it may meet the federal standard, however, it would not be recommended to let the pressure decrease more than that.

Yes, the cabin pressurized at 500 mm hg meets federal standards.

1 atm is approximately equal to 760 mm Hg. Therefore, the pressure is:

500 mm Hg / 760 mm Hg/atm ≈ 0.65789 atm

So, the cabin pressure of 500 mm Hg is approximately 0.65789 atmospheres. If the atmospheric pressure at an elevation of 8000 feet averages about 0.72 atmospheres, then the cabin pressure of 0.65789 atmospheres would be lower than the ambient atmospheric pressure.

To meet federal standards, cabin pressure should be maintained at an equivalent pressure that allows occupants to breathe comfortably.

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Can someone help me with this chemistry I have attached?, just helping me understand these problems. Its moles and questions

Answers

there is so attachment

Which element is classified as a noble gas?

Answers

Answer:

any of the seven chemical elements that make up Group 18 (VIIIa) of the periodic table. The elements are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Rn), and oganesson (Og). :)

Explanation:

Answer:

For edge, the answer is;

D. Xe

(Xenon)

Explanation:

edg- answers ;p

Particle motion in ice is __________than partlice motion in water.
1. faster
2. slower
3. the same

Answers

Answer:

1. Faster

Explanation:

Faster is the answer

the kind of bond present in CUSO4.5H20​

Answers

Answer:

Both ionic bonds and covalent bonds (coordinate and non-coordinate) are present in crystalline [tex]\rm CuSO_4\cdot 5\, H_2O[/tex].

Explanation:

[tex]\rm CuSO_4\cdot 5\, H_2O[/tex] can be formed by adding water to the anhydrous salt [tex]\rm CuSO_4[/tex].

[tex]\rm CuSO_4[/tex] itself is an ionic compound consisting of [tex]\rm Cu^{2+}[/tex] ions and [tex]\rm {SO_4}^{2-}[/tex] ions. Ionic bonds are present between these ions. However, within each sulfate [tex]\rm {SO_4}^{2-}[/tex] ion, covalent bonds connect the central sulfur atom to each of the oxygen atoms.

Water molecules [tex]\rm H_2O[/tex] are highly polar. Partial negative charges surround the oxygen atom in each water molecule.

When water is added to anhydrous [tex]\rm CuSO_4[/tex], the negatively-charged portion of these [tex]\rm H_2O\![/tex] molecules would be attracted to the positively-charged [tex]\rm Cu^{2+}[/tex] ions in [tex]\rm CuSO_4\![/tex].

Lone pairs on oxygen atoms in [tex]\rm H_2O\!\![/tex] would form coordinate covalent bonds with [tex]\rm Cu^{2+}\![/tex] ions. (These bonds are considered "coordinate" because both electrons in each of these bonds come from the oxygen atom, not the [tex]\rm Cu^{2+}[/tex] ion.) That would produce coordination complexes with one [tex]\rm Cu^{2+}\!\![/tex] ion and five [tex]\rm H_2O\!\!\![/tex] "ligands" each.

Because the [tex]\rm H_2O[/tex] ligands carry no electric charge, each of these complexes would also carry a charge of [tex](+2)[/tex] (same as the charge on one [tex]\rm Cu^{2+}\!\![/tex] ion.) Ionic bonds would be present between the positively-charged coordination complexes and the negatively-charged [tex]\rm {SO_4}^{2-}[/tex] ions.

Summary:

Covalent bonds are present within [tex]\rm {SO_4}^{2-}[/tex] ions and [tex]\rm H_2O[/tex] ligands.Coordinate covalent bonds are present between [tex]\rm H_2O[/tex] ligands and [tex]\rm Cu^{2+}[/tex] ions.Ionic bonds are present between [tex]\rm {[Cu\, (H_2O)_5]}^{2+}[/tex] coordination complexes and sulfate ions [tex]\rm {SO_4}^{2-}[/tex].

Express the following numbers in scientific notation:
872

Answers

Answer:

The number 872 would be written as,

8.72× 10²

Explanation:

Scientific notation is used to express the large value in short form.

The number in scientific notation have two parts.

First part:

The digits (decimal point will place after first digit)

Second part:

× 10 ( the power which put the decimal point where it should be)

For example the number 872 would be written as

8.72× 10²

Another example:

6324.4 in scientific notation will be written as = 6.3244 × 10³

32. A chemical reaction in which calcium carbonate CaCO3 is decomposed, results in the
production of two simpler compounds.
CaCO3
>CaO
+
CO2
? 9
28.00 g
21.97 g
What mass of calcium carbonate, to the nearest hundredth of a gram, is
decomposed in this reaction?

Answers

Answer:

Mass of calcium carbonate decompose 49g.

Explanation:

Given data:

Mass of CaO = 28.00 g

Mass of CO₂ = 21.97 g

Mass of calcium carbonate decompose = ?

Solution:

Chemical equation:

CaCO₃     →    CO₂ + CaO

Number of moles of  CO₂:

Number of moles = mass/molar mass

Number of moles = 21.97 g / 44 g/mol

Number of moles = 0.49 mol

Number of moles of  CaO:

Number of moles = mass/molar mass

Number of moles = 28.00 g / 56.1 g/mol

Number of moles = 0.49 mol

Now we will compare the moles of CaCO₃ with CaO and CO₂ .

                                CO₂                 :           CaCO₃

                                   1                    :             1

                                 0.49                :            0.49

                                 CaO                :           CaCO₃  

                                    1                    :             1

                                  0.49                :            0.49

Mass of CaCO₃ decompose:

Mass = number of moles × molaer mass

Mass = 0.49 mol × 100.1 g/mol

Mass = 49 g

Answer:

CaO

Explanation:

the density of an 18.0 solution of ammonium sulfate is 1.10g/ml. What mass of Ammonium sulfate is required to prepare 275ml of this solution

Answers

Answer:

Therefore, 54.45 g of Ammonium sulphate is required

Explanation:

Molar mass of ammonium sulphate, (NH₄)₂SO₄ = 132 g/mol

Since density of solution is 1.10 g/ml, a 1 mL solution has mass = 1.10 g

275 mL solution will have a mass = 275 * 1.10 = 302.5 g

Since the solution is 18% ammonium sulphate by weight,

mass of ammonium sulphate present in 275 mL solution = 302.5 * 18/100

mass of ammonium sulphate present in 275 mL solution = 54.45 g

Therefore, 54.45 g of Ammonium sulphate is required

What is the volume of 4.62 g of mercury? The density of mercury is 13.5 g/cm3.

Answers

Answer:

The answer is 0.342 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\[/tex]

From the question

mass = 4.62 g

density = 13.5 g/cm³

We have

[tex]volume = \frac{4.62}{13.5} \\ = 0.3422222...[/tex]

We have the final answer as

0.342 cm³

Hope this helps you

I need help with 5 and 6

Answers

Finally, someone gave a clear photo.

How does ionic bond forms?

Answers

Answer:

Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.

Explanation: i took the same test

Answer:

it forms where a metal element and a non metal element react together to form a now compound

What can the chemical formula tell us about a compound?

Answers

Answer:

A chemical formula tells us the number of atoms of each element that is in a compound. It contains the symbols of the atoms for the elements present in the compound as well as how many there are for each element in the form of subscripts.

Hope this helps! please mark me brainliest!

God bless :)

There are approximately 250 million passenger vehicles in the United States. If each is driven 25,000 km per year, calculate the total mass of CO, NOx and HC emitted in 1970 if all vehicles just meet the government standard at that time. Please find the standard values in textbook. (Please round up to 3 decimal points and use 'E' for exponent)

Answers

Answer:

CO = 1.320 x 10¹¹ Kg  

NOx = 1.942 x 10¹⁰ Kg

HC = 1.592 x 10¹⁰ Kg  

Explanation:

Given that;

there are approximately 250 million passenger vehicles

each is driven 25,000 km per year which is 15534.28 miles per year

In 1970, the  vehicular emission norms are;

CO = 34 g/mile , NOx = 5 g/mile , HC = 4.1 g/mile

so emission of CO in 1970 is;

250000000 × 15534.28 × 34 g

= 1.320 x 10¹⁴ g

= 1.320 x 10¹¹ Kg  

Also, emission of NOx in 1970

250000000 × 15534.28 × 5 g

= 1.9417 x 10¹³ g

= 1.942 x 10¹⁰ Kg

emission of HC in 1970

= 250000000 × 15534.28 × 4.1 g  

= 1.5922 x 10¹³ g

= 1.592 x 10¹⁰ Kg  

The initial pressure of a mixture of C6H6 and an excess of H2 in a rigid vessel is 1.21 atm. A catalyst is introduced. After the reaction reaches completion, the temperature is restored to its initial value. The final pressure in the vessel is 0.839 atm. What was the mole fraction of C6H6 in the original mixture

Answers

Answer:

mole fraction of C6H6 = 0.613 atm

Explanation:

The equation for this reaction is :

          [tex]C_6H_6 _{(g)} + 3H_2_{(g)} \to C_6H_{12}_{(g)}[/tex]

Initial      P₁            P₂             0

Final        0           P₂ -P₁/2      P₁

After completion of the reaction;

P₁  +  P₂  = 1.21 atm                    ----- (1)

P₂  -  P₁/2 +  P₁ = 0.839 atm

P₂ + P₁/2 = 0.839 atm          ----- (2)

Subtracting (2) from (1); we have:

P₁/2 = 0.371

P₁ = 0.742 atm

From(1)

P₁  +  P₂  = 1.21 atm

0.742 atm + P₂  = 1.21 atm

P₂  = 1.21 atm - 0.742 atm

P₂  = 0.468 atm

Thus, the partial pressure of C6H6 = 0.742 atm

Partial pressure = Total pressure × mole fraction of C6H6

mole fraction of C6H6 = Partial pressure /  Total pressure

mole fraction of C6H6 = 0.742 atm / 1.21 atm

mole fraction of C6H6 = 0.613 atm

PLZ HELP ME...
Graceful, and yet majestic, it clings to the land like a thing that has taken root. Beautiful as a vision of fairyland it salutes our sight. The impression it makes upon the visitor is one of astonishment, an astonishment that grows with every visit. No one who has been upon it can ever forget it. This great structure cannot be confined to the limits of local pride. The glory of it belongs to the race. Not one shall see it and not feel prouder to be a man.

Which of the following is the best objective summary of the excerpt?

The Brooklyn Bridge is an unforgettable sight!
The glory of the bridge belongs to the human race.
The grandeur of the bridge would make people feel proud.
Visitors of New York should be astonished by the bridge.Is a compound considered a pure substance? Why or why not?
BTW im on edguinity

Answers

Answer:

its b

Explanation:

its b sorry if im wrong but mine said b

Answer:

B.

Explanation: I got it right on edg

a water sample is found to have a cl- content of 100ppm as nacl what is the concentration of chloride in moles per liter

Answers

Answer:

The concentration of chloride ion is [tex]2.82\times10^{-3}\;mol/L[/tex]

Explanation:

We know that 1 ppm is equal to 1 mg/L.

So, the [tex]Cl^-[/tex] content 100 ppm suggests the presence of 100 mg of [tex]Cl^-[/tex] in 1 L of solution.

The molar mass of [tex]Cl^-[/tex] is equal to the molar mass of Cl atom as the mass of the excess electron in [tex]Cl^-[/tex] is negligible as compared to the mass of Cl atom.

So, the molar mass of [tex]Cl^-[/tex] is 35.453 g/mol.

Number of moles = (Mass)/(Molar mass)

Hence, the number of moles (N) of [tex]Cl^-[/tex] present in 100 mg (0.100 g) of [tex]Cl^-[/tex] is calculated as shown below:

[tex]N=\frac{0.100\;g}{35.453\;g/mol}=2.82\times 10^{-3}\;mol[/tex]

So, there is [tex]2.82\times10^{-3}\;mol[/tex] of [tex]Cl^-[/tex] present in 1 L of solution.

Explain how plucking occurs

Answers

Answer:

plucking is usually extracting hair

Explanation:

example: pluck the chicken feathers

pluck my brows

calculate the amount of water produced by the combustion of 16 gram of methane​

Answers

Answer:  Since, the given weight of methane is 16 g, hence the water produced by the combustion of 16 g of methane is 36 g.

Explanation: Have a blessed day!

36 g
explanation: have a good day

Concentration data is commonly monitored during a reaction to determine the order with respect to a reactant. Consider the types of observations listed, and determine which order is likely for that reactant. Assume all other factors are held constant.


1. An increase in the concentration of the reactant in solution causes the reaction rate to increase exponentially.

a. first order
b. second order
c. zero order

2. The reaction rate increases in direct proportion to the concentration of the reactant in solution.

a. first order
b. second order
c. zero order

3. The reaction rate is constant regardless of the amount of reactant in solution.

a. first order
b. second order
c. zero order

Answers

Answer:

1) first order

2) second order

3) zero order

Explanation:

The curve of a first order reaction shows it to be exponential. In fact for a first order reaction, the concentration at a time t is an exponential function;

[A]t= [Ao] e^-kt

Where

[A]t = concentration at time =t

[Ao]= initial concentration

k= rate constant

t= time

For a second order reaction, the rate of reaction is directly proportional to the concentration of reactants.

For zero order reactions, rate of reaction is independent of concentration hence rate = k(rate constant)

The concentration data has been required for the determination of the rate of reaction. Based on the concentration of reactant and product, the rate has been determined.

1. For the first-order reaction, there has been an exponential increase in the rate of the reaction with the increase in the reactant concentration. The rate has been dependent on the concentration of the reactant.

Thus the correct option is A.

2. Irrespective of the first-order kinetic, in the second-order reaction, the rate of reaction has been directly proportional to the concentration of the reactant in the solution.

Thus option B is correct.

3. The zero-order reaction has been independent of the concentration of the reactant. The rate of reaction has been constant with an increase in the reactant concentration.

Thus option C is correct.

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Does the Bohr model work for atoms other than hydrogen?​

Answers

Answer:

The "Bohr Model", works only for hydrogen because it considers only the "interactions" between one electron and the nucleus.

Explanation:

$*

why ice melt into water​

Answers

Heat gives more energy to the particles within ice. This allows them to move more freely, and will turn from a solid to a liquid.
Ice melts into water because ice is a solid at first then it reeks into a liquid

"Calculate the pH of an aqueous solution at 25°C that is (a) 0.15 M in HCl. 0.82 (b) 3.7 M in HNO3. -0.57 (c) 6.9 × 10−4 M in HClO4."

Answers

Answer:

See explanation

Explanation:

The pH of a solution is defined as the negative logarithm of hydrogen ion concentration.

For HCl

pH= - log[0.15] = 0.82

For HNO3

pH= -log[3.7] = -0.57

For HClO4

pH= - log [6.9 × 10^-4] = 3.16

The data table shows the number of pumpkin seeds that germinate at different temperatures. What is the median number of seeds that germinate at 24C?

A. 80.5 B. 82 C. 78.5 D. 80

Answers

Answer:

Explanation:

80

what is 19.0 ul in ml

Answers


uhhh

———————

What is ul?

Which is true of both the rock cycle and the water cycle?

both occur mostly in the atmosphere
both occur mostly in the geosphere
both have no beginning and no end
matter is created by both of them

Answers

A

Because both occur mostly in the atmosphere

And If both happens in the atmosphere it makes it the only answer by default

The study of the rocks is called petrology.

The correct answer to the question is option B that is both occur mostly in the geosphere.

What is a geochemical cycle?A geochemical cycle is the pathway that chemical elements take in the surface and crust of the Earth. The term geochemical tells us that geological and chemical factors are all included.

According to the question, both water and the rocks are present on the land and go to the reservoir with the help of a process called leaching. The common passage for both the cycling island.

Hence, the correct answer is option B.

For more information about the geochemical cycle, refer to the link:-

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Which of the following best support the function of electrical signals in the nervous system?
Each nerve cell is connected to the brain by electrical signals.
Nerve cells communicate with the brain by sending out electrical signals
Electrical signals keep nerve cells alive.
Electrical signals are used to get rid of waste produced in the nervous system.

Answers

Answer:

Each nerve cell is connected to the brain by electrical signals

Explanation:

Answer:

they said it above me

Explanation:

A solution with a Ph of 13 would be classified as a_____

strong base

strong acid

weak acid

weak base​

Answers

Answer:

strong base

Explanation:

aaaaaaaaaaaaa

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Calloway Company recorded a right-of-use asset of $790,000 in a 10-year finance lease. The interest rate charged by the lessor was 10%. The balance in the right-of-use asset after two years will be: By the end of 1917, Russia had exited the war because it had signed the armistice agreement.surrendered to the Allies.agreed to a cease-fire with Germany.surrendered to Germany. One strategy in a snowball fight is to throwa snowball at a high angle over level ground.While your opponent is watching this firstsnowball, you throw a second snowball at alow angle and time it to arrive at the sametime as the first.Assume both snowballs are thrown withthe same initial speed 16.2 m/s. The firstsnowball is thrown at an angle of 62 abovethe horizontal. At what angle should youthrow the second snowball to make it hit thesame point as the first? Note the starting andending heights are the same. The accelerationof gravity is 9.8 m/s. I don't understand calculus at all bruh :/. I figured out some of this but I don't know if the answer is 0 or 2. Whoever figures this, out also please explain how you got it. Where do I put the 4 protons Annas mother has two kids ywo of whom are called Faith and Natasha who is the third child? tasting your knowledge i was part of parade________republic Day Plz help me its geometry Summarize the introduction of the Declaration in your own words. - declaration of rights of manpls help Alice and Bob entered into a forward contract some time ago. Alice has the long position, while Bob has the short position. The forward contract will mature in three months and has a delivery price of $40. The current forward price for the contract is $42. The three-month risk-free interest rate (with continuous compounding) is 8%. What is the value Bob's position? How are DNA and proteins related What was a result of the increased demand for slave labor in the Americas and Europe during the seventeenth and eighteenth centuries?A) England and the American colonies outlawed all slave labor by 1850. B) The price of manufactured goods decreased in Europe and the American colonies. C) African societies outlawed the slave trade and fought against European slave traders. D) Many African states grew wealthy by trading slaves to Europeans for tobacco, guns, and alcohol. How many solutions does this equation have2x + 1 = 2x 1 Which of these properties is physical property of aluminumA. Aluminum rusts when it is exposed to moisture and airB. Aluminum is a good conductor of heatC. Aluminum reacts with oxygen to form aluminum oxideD. Aluminum reacts with hydrochloric acid to give up aluminum chloride and hydrogen gas Please answer this correctly without making mistakes An effective team would never have ______.a.Multiple long term goalsb.A series of coordinated deadlinesc.Unclear definitions of goalsd.Goals which mesh with the company culture HELLLPP!!!! Jake's regular hourly wage is $14.15 after working 40 hours in a week he gets paid overtime which is a pay and a half if Jake worked for 58 hours what will his weekly gross income be What is the speed of a car that is traveling at 75,000 meters in 5,400 seconds. Suppose y = 2x 2.5. Find x if y = 10. A designer determined the annual profit in dollars from selling t- shirts using p (n) = 10n - 50, where n the number t-shirts sold. What is the annual profit if the designer sells 100 t- shirts F. $8,050G. 10,000H. 1,000J. $950