The number of protons and neutrons in an atom is that atoms __ number.

Answers

Answer 1
Answer: Mass number

If you look at the periodic table, you can simply find the mass number either on the top or bottom of the element.

Related Questions

A 100g block of pine wood has a volume of 300 cm3. Would this block float on water (density of water is 1.0 g/cm3)?

Answers

A 120g block of pinewood has a volume of 300cm3. Would this block float on water? (HINT: Water has a density of 1g/cm3). a. No, because the block is denser than water.

Also here's a free meme

The density of a material represents the denseness of that material in a specific given area. If an object has a density less than water then it will float on water otherwise it will sink. Here the wood will float on water.

What is density?

The density of a material denotes the measurement which compares the amount of matter an object has to its volume. An object with more matter in a certain volume has a high density. It is defined as the mass per unit volume.

The density is usually represented by symbol ρ or by the letter D. The formula used to calculate the density is:

Density = Mass / Volume

D = 100 / 300 = 0.33 g/cm³

Here the density of water is 1.0 g/cm³ which is greater than the density of  pine wood. So the pine wood will float on water.

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what mass of sulfurous acid is produced when 245g of sulfur dioxide is reacted with water?
H₂O + SO₃ = H₂SO₃

Answers

The mass of sulfurous acid produced when 245g of sulfur dioxide is reacted with water is 313.8 g

Stoichiometry

From the question, we are to determine the mass of sulfurous acid produced

First, we will write the balaced chemical equation for the reaction

H₂O + SO₂ → H₂SO₃

This means 1 mole of H₂O reacts with 1 mole of sulfur dioxide (SO₂) to produce 1 mole of sulfurous acid (H₂SO₃)

Now, we will determine the number of moles of sulfur dioxide present

Mass of sulfur dioxide present = 245 g

Molar mass of sulfur dioxide = 64.066 g/mol

Using the formula,

[tex]Number \ of \ moles = \frac{Mass}{Molar\ mass}[/tex]

Then,

Number of moles of SO₂ present = [tex]\frac{245}{64.066}[/tex]

Number of moles of SO₂ present = 3.824 moles

This is the number of moles of SO₂ present

From balanced chemical equation

1 mole of H₂O reacts with 1 mole of sulfur dioxide (SO₂) to produce 1 mole of sulfurous acid (H₂SO₃)

Then,

Water (H₂O) will react with the 3.824 moles of sulfur dioxide (SO₂) to produce 3.824 moles of sulfurous acid (H₂SO₃)

∴ The number of moles of sulfurous acid produced is 3.824 moles

Now, for the mass of sulfurous acid produced

Molar mass of sulfurous acid = 82.07 g/mole

Using the formula,

Mass = Number of moles × Molar mass

Mass of sulfurous acid produced = 3.824 × 82.07

Mass of sulfurous acid produced = 313.8 g

Hence, the mass of sulfurous acid produced is 313.8 g

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Why does a short circuit occur?

A. Current likes to try and break the circuit whenever possible
B. Current always follows the path of least resistance
C. Current always follows the path of most resistance
D. Current randomly flows around the circuit

Answers

Answer:

Current randomly flows around the circuitt

Answer:

B. Current always follows the path of least resistance.

Explanation:

A short circuit occurs when the current finds a way to bypass the appliance on a path that has little or no resistance. When one path through the circuit has 0 resistance (a short circuit), current follows the path of least resistance only.

Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. which fruit has the greater mass? choose the words and numbers to complete the statements. convert the masses of both fruits to the same unit. 85,000 milligrams is the same as choose... grams. 0.15 kilograms is the same as choose... grams. the choose... has the greater mass.

Answers

The fruit which has the greater mass is peach i.e. 150 grams.

What is mass?

Mass is a quantity which is used to define that what amount of substance will occupy any space or present in the given object.

We have given,

Weight of apples = 85,000 mg

Weight of peach = 0.15 kg

To compare the quantity first we have to convert both of these units in the same unit, and we know that:

In 1 kilogram = 1000 grams

And in 1 grams = 1000 milligrams

So, we convert both the units into grams as:

85,000 mg =  85,000 / 1000 = 85 grams

0.15 kg = 150 grams

So, the mass of peach is high.

Hence, peach has the greater mass.

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Answer:

Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. Which fruit has the greater mass? Choose the words and numbers to complete the statements.

Convert the masses of both fruits to the same unit.

85,000 milligrams is the same as  

85

 grams.

0.15 kilograms is the same as  

150

 grams.

The  

peach

 has the greater mass.tion:

Convert 18◦C to Kelvin.

Answers

291.15 Kelvin

I hope this helps

Answer:

18 degrees Celsius = 291.15 Kelvin

Explanation:

The formula for finding Kelvin through Celsius is by adding 273.15 to the Celsius. In this case, it is 18 + 273.15 = 291.15

:)

I need help please. Thanks

Answers

Answer:

Battery

Explanation:

The battery supplies the electricity needed for the circuit to work.

Use the drop-down menus to complete each statement. is used as construction materials. is important for the production of crops. is the loss of fertile soil.

Answers

Bedrock is used in the construction of structures, the topsoil is important for the production of crops and the loss of fertile soil is known as desertification.

Bedrocks, topsoil, and desertificationBedrocks are underlining rocks below soils. They are useful in construction works such as buildings, bridges, etc.

Topsoils are the topmost portions of soils. They are usually rich in humus and organic matter and are therefore very good for agricultural crop production.

Desertification is simply the loss of fertile soils and their transformation to barren, unproductive lands. Topsoils are lost and soils are rendered unsuitable for agriculture.

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Answer:

1. Bedrock

2. Topsoil

3. Desertification

Explanation:

Infer Xenon, a nonreactive gas used in strobe lights, is a poor conductor of heat and electricity. Would you expect xenon to be a metal, a nonmetal, or a
metalloid? Where would you expect it to be on the periodic table? Explain.

Answers

Mark the lime poor conducter of heat and electricity.

Hence it's non metal

Yes why no ,Xenon is already has its secured place in modern periodic table.

It belongs to group 18,the Helium family and inert gas group having atomic no Z=54

Xenon is a non-reactive gas. It will not conduct and react normally. Thus it can be classified as a non-metal. Xenon is placed in the inert gas or noble gas group that is group 18.

What are noble gases?

Noble gases are inert gases in the 18th group of periodic table. Noble gases have completely filled orbitals and thus they no need other electrons.

Atoms participate in reaction when they are not stable because of the insufficient valence electrons. Noble gases such as argon, krypton, neon, xenon etc. have 8 valence electrons and thus are not reactive.

Metals are highly conductive and they are placed in the left side of periodic table. In periodic table, from left to right the metallic nature decreases and the other elements are called non-metals. Most of the non-metals are gases and very few such as silicon is metalloid.

Non-metals are insulators or poorly conduct electricity. Hence, xenon is a non-metal placed in the 18th group of periodic table.

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please help there are 3 answers brainlies is included with the best answer.

SUMMATIVE FOSSILS/FOSSIL RECORD/HISTORY OF LIFE ON EARTH

FOSSILS CAN BE CATEGORIZED INTO 3 MAJOR TYPES. THEY ARE:

REPLACEMENT

METAMORPHIC

TRACE

SEDIMENTARY

IMPRESSION

Answers

Answer:

Your answers would be:

-impression fossils

-trace fossils

-replacement fossils




Explanation:

Have a great rest of your day
#TheWizzer

Answer:

The are id-k- I dont know much on fossials. But did you know that thunder is lighting. I say this because thunder is just the noise lighting makes. We see the light firts because light travels faster than sound.

Explanation:

Hope This Helps

Have A Great Day

~Zero~

A person observes that when the front porch of a house is wet , it is very slippery. The person adds sand to a paint can and repaints the porch’s surface.

How will the new paint make the porch safer?

Answers

Answer:

a

Explanation:

it will help stop frictoin

How many atoms are in a 250 g sample of Gold

Answers

Answer:

15.055 X 1023 atoms

Explanation:

hope clear

How many molecules make up 32 g of Oz?

Answers

Answer:

Chemical formula of Oxygen is O2.

We know ,

1 mole of a substance contains 6.022×10^23, Avogadro’s Constat.

Here, Molar mass of O = 16u

And molar mass of O2 = 32u

And 32g of O2 = 1 mole of O2

It means that,

32g of O2 = 6.022×10^23 molecules

Answer:

The correct answer is given in the picture

This ANSWER IS ONLY CORRECT WHEN Oz STAND FOR OZONE

Lithium nitride has a high melting point, 813*C. Nitrogen trifluoride has a low malting point, -207*C.
Explain why the melting points are different? [2 marks]
.....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Answers

Answer:

Lithium has high melting and boiling point due to its small size, due to which it possesses high ionisation energy. As a result the binding energy in its crystal lattice is very high. This is why lithium has high melting and boiling point.

Explanation:

I HOPE IT HELPS! THANX!!

STAY SAFE!!!

What are the factors that affect freezing-point depression

Answers

the freezing point depression depends solely on the concentration of solute particles

Eas: add two curved arrows to show how water acts as a base

Answers

Is like when u pee the water curves also it could also be curved u never know

What are some consequences of solar flares in the ocean?

Answers

Answer:

they include pretty aurora as well as hazards

what may cause some short term environmental changes how would organisms respond to these changes

Answers

Answer:

Refer to explanation

Explanation:

Weather is the main cause behind most short term environmental changes

For example, a period of heavy rain may lead to a pond overflowing, and flooding the nearby shrubbery

Animals in the area would adapt to this by trying to keep away from the flooded area until it dries out, once the rain ends

Helppp
1.
You should NEVER dump the following into a drain at home:

I. Medication

II. Corrosives

III. Juice

Answers

Answer:

Medication

Explanation:

These pharmaceuticals can pollute our water and unintentionally expose us to the chemicals in these medications. Recent studies have found that medicines flushed down the drain can contaminate our lakes and streams, which can hurt fish and other aquatic wildlife, and end up in our drinking water.

A balloon has a volume of 22.4 L at 273 K and 760 mm Hg. What will be the new volume if the pressure is
doubled to 2.00 atm?

Answers

The new volume of the gas in the balloon when the pressure is doubled is determined as 11.2 L.

General gas equation

The new volume of the balloon is determined by applying general gas equation as shown below

P₁V₁/T₁ = P₂V₂/T₂

Where;

P₁ is the initial pressure of the gas = 760 mmHg = 1 atmV₁ is the initial volume of the gas = 22.4 LT₁ is the initial temperature of the gas = 273 KP₂ is the final pressure of the gas = 2 atmT₂ is the final temperature of the gas = 273 KV₂ is the final volume of the gas = ?

[tex]\frac{P_1V_1}{T_1} = \frac{P_2V_2}{T_2} \\\\V_2 = \frac{P_1V_1T_2}{T_1P_2} \\\\V_2 = \frac{1 \times 22.4 \times 273}{273 \times 2} \\\\V_2 = 11.2 \ L[/tex]

Thus, the new volume of the gas in the balloon when the pressure is doubled is determined as 11.2 L.

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Salt is often added to water to raise the boiling point to heat food more quickly. if you add 30.0g of salt to 3.75kg of water, what will be the change in the boiling point of your salt water? what is the new boiling temperature? assume the kf of water is 0.512*c/m. i know the answer is 100.14 degrees i just need to know the work and how to get there, thank you!

Answers

Assuming an ebullioscopic constant of 0.512 °C/m for the water, If you add 30.0g of salt to 3.75kg of water, the boiling-point elevation will be 0.140 °C and the boiling-point of the solution will be 100.14 °C.

What is the boiling-point elevation?

Boiling-point elevation describes the phenomenon that the boiling point of a liquid will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent.

Step 1: Calculate the molality of the solution.

We will use the definition of molality.

b = mass solute / molar mass solute × kg solvent

b = 30.0 g / (58.44 g/mol) × 3.75 kg = 0.137 m

Step 2: Calculate the boiling-point elevation.

We will use the following expression.

ΔT = Kb × m × i

ΔT = 0.512 °C/m × 0.137 m × 2 = 0.140 °C

where

ΔT is the boiling-point elevationKb is the ebullioscopic constant.b is the molality.i is the Van't Hoff factor (i = 2 for NaCl).

The normal boiling-point for water is 100 °C. The boiling-point of the solution will be:

100 °C + 0.140 °C = 100.14 °C

Assuming an ebullioscopic constant of 0.512 °C/m for the water, If you add 30.0g of salt to 3.75kg of water, the boiling-point elevation will be 0.140 °C and the boiling-point of the solution will be 100.14 °C.

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A neutralization reaction is a reaction between choose. That results in the formation of choose. And choose.

Answers

Neutralization reaction is the reaction that occur between acid and base.

What is Neutralization reaction?

Neutralization reaction is the reaction that take place between acid and base to produce salt and water. For examples HCl react with NaOH to produce NaCl and H2O

Therefore, Neutralization reaction is the reaction between acid and base.

The question is not complete but the option are gotten from another website.

Here are the options.

an acid and a basea fuel and oxygenan acid and a metala salt and a base

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What happens to the sunlight when it reaches the Earth's surface?
O
All of the sunlight is reflected from the Earth's surface and radiated
back into space
O
Some of the sunlight is captured as heat on Earth, and some of it is
radiated back to space.
O
All of the sunlight is absorbed by the Earth's surface

Answers

Answer:

the second one

Explanation:

What is this element?

Answers

Answer:

stuff around the earth

Explanation:

like water,fire,wind,and earth/plants

You are pulling an object up 1 m with a 5 m ramp. You pull
with 20 N of force.
How much does the object weigh?

Answers

For an object  1 m long with a 5 m ramp, You pull with 20 N of force, The weight of the object is mathematically given as

W= 5714.3 N

What is the weight of the object ?

Generally, the equation for the weight   is mathematically given as

W = mg = F/Sinθ

W= 20/Sin0.2

W=20/ 0.0035

W= 5714.3 N

In conclusion, the weight of the object

W= 5714.3 N

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How many moles are in 4. 75 x 1025 molecules of O2?

Answers

Answer: 78.9 moles

Explanation:

4.75 x 10^25 molecules (1 mole / 6.02 x 10^23 molecules) = 78.9 moles :)

In Lhasa, Tibet, the elevation is 12,000 feet. The altimeter reading in an airplane is 19. 50 in Hg.

This pressure is equal to ___psi.

Answers

Given the data from the question, the reading (i.e pressure) of the altimeter in psi is 9.57 psi

Conversion scale

1 inHg = 0.491 psi

Data obtained from the question Pressure (inHg) = 19.50 inHgPressure (psi) =?

How to determine the pressure in psi

The pressure of the altimeter in psi can be obtained as illustrated below:

1 inHg = 0.491 psi

Therefore,

19.50 inHg = 19.50 × 0.491

19.50 inHg = 9.57 psi

Thus, 19.50 inHg is equivalent to 9.57 psi

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Water is a ______ molecule and the bond between the h-o is a __ ______ bond.
i know the last 2 is polar covalent bond but i don't know
the first blank.

Answers

Answer: polar molocule

Explanation:

Giving brainiest and 100 points! <3

Answers

A. Cold front

The warm front symbol would be red and have circles instead of triangles.

The occluded front symbol would be purple with both, a triangle and a circle.

The stationary Front symbol is a mixture of both symbols from cold front and warm front.

hope that helps!!

How to tell if a reaction is double bond or single

Answers

Answer:

Single replacement is a reaction in which one element reacts with another compund to form another compound and another element.

planation:

If the reaction is double displacement then two molecules will be displaced and if it is single displacement reaction then only one element displaces.

What is displacement reaction?

Displacement reactions are those reactions in which any element of the given reactant will be displaced by any another element.

If only one element from the reactant molecules will displace then it will be known as single displacement reaction. If two elements or atoms will be displaced from the reactant molecules then it will be known as double displacement reaction.

Hence if one element displaceed then called the single displacement reaction and if two elements displaces then called as the double displacement reaction.

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How and Why did the Nazis dehumanized the Jews?

Topic sentence:


Text evidence:

Conclusion:
(Can someone help me out pls)

Answers

Answer:

Its because Hitler thought that there beliefs were trasha dn thought that these humans were worthless so he went out of his way to "DEHUMANIZE" them.

Explanation:

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