What is the product of
Mg(NO3)2 + Na2CO3?

Answers

Answer 1

Answer:

MgCO3 + 2 NaNO3

Explanation:


Related Questions

Oxidation and reduction reactions (redox) involve the loss and gain of electrons. Half-reactions are a way for us to keep track of how many electrons are gained or lost by a particular species during a chemical reaction. These half reactions can be useful in understanding how batteries work, and how other reactions that occur in your body and in nature work as well. Questions 1. In the model, are electrons lost or gained during oxidation

Answers

Answer:

Electrons are lost during oxidation (LEO)

Please help please help

Answers

Answer:

sry I don't know much about chemistry

Its 60.7% because the total mass of NaCl is 58.5g and chlorine only costitute of the 35.5g. So its mas of chlorine over total mass x 100

How does the process of cell division replace damaged cells

Cells split into two new cells with the identical genetic make up

Chloroplasts use carbon dioxide and water to create glucose

Metatron Gia uses oxygen to break down glucose and convert it to ATP


Waste passes through the cell membrane and leaves the cell

Answers

Answer:

A

Explanation:

The cells split up into two to repair the damaged cell

Explain what will happen to the crystal when cations are pushed they face each other and the movement is simulating an applied force

Answers

Answer:

When an ionic crystal breaks, it tends to do so along smooth planes because ... ions are forced near each other and the repulsive force causes the crystal to shatter. ... Cations move to one electrode, while anions move to the other, ... Diagram of ions in an ionic solution when an electrical current is applied.

Explanation:

Hope this helped

What is the mass of 0.125 moles of tin sulfate (SnSO4)?

Answers

Answer:

26.85 grams

Explanation:

The formula for mole calculations is number of moles = given mass/gram-formula mass.

The number of moles is given to us, which is 0.125.

The gram formula mass of SnSO4 is about 214.77.

Plug in the values we have into the equation. It should look like this:

0.125 = x / 214.77

Solve for x by multiplying 214.77 and 0.125. The answer should be about 26.85 grams.

Which of the following can cause a population to decrease in size?
A Lack of rain
B. More births than deaths C. Plentiful food supplies
D. Organisms moving into an area, but not out.

Answers

Answer:

D

Explanation:

because when some organisms will move from one place to another the number of population will decrease

If it’s only one choice then the answer is D because if a bunch of bears moved into a city, people would leave the city.

If it’s more than one choice then the answers are A and D because lack of rain can cause droughts which many people don’t want to live through.

I need help with number 19 A through D

Answers

yes i uuui i you have to go eat and then we will go to eat and then go to bed and sleep

How does light demonstrate quantization?
A. The velocity of a light wave has a direction as well as speed.
B. The wavelength of light increases as the frequency decreases.
C. The frequency of light increases as energy increases.
D. The energy in light waves comes in units called photons.​

Answers

Answer:

D. The energy in light waves comes in units called photons.

Explanation:

its known as quatum theory

What is a reaction rate

Answers

Answer:

Explanation:

A reaction rate is the measure of the change in concentration of the disappearance of reactants or the change in concentration of the appearance of products per unit time

18- The number of orbitals in each sublevel are:
A:-s:2, p:3, d:10, and f:14
B:-s:2, p:6, d:10, and f:14
C:-s:1, p:3, d:5, and f:7
D:-s:1, p:2, d:3, and f: 4

Answers

s2,p6,d10,f14

S contains 2 orbitals

P contains 6 orbitals

D contains 10 orbitals

F contains 14 orbitals

What is the pH of a solution with a concentration of 4.2 x 10−5 M H3O+? (4 points)

Select one:
a. 2.31
b. 4.38
c. 5.62
d. 6.87

What is the pH of a solution with a 4.60 x 10−4 M hydroxide ion concentration? (4 points)

Select one:
a. 0.663
b. 3.33
c. 10.1
d. 10.7

Answers

Answer:

1) b. 4.38

2)  d. 10.7

Explanation:

1) The problem tells us that [H₃O⁺] = 4.2x10⁻⁵ M, and keeping in mind that [H₃O⁺]= [H⁺], we can calculate the pH of the solution:

pH = -log[H⁺] = 4.38

2) First we calculate the pOH of the solution:

pOH = -log[OH⁻] = -log(4.6x10⁻⁴) = 3.33

Then we calculate the pH using the following formula:

pH = 14 - pOH = 14 - 3.33pH = 10.7

The pH of a solution with a concentration of 4.2x10⁻⁵ M H₃O⁺ ion is 4.38 and of a solution with a concentration of 4.6x10⁻⁴ OH⁻ ion is 10.7.

What is pH and pOH?

pH of any solution is define as the negative log of the concentration of H⁺ ions and pOH is define as the negative log of the concentration of OH⁻ ions.

Given that concentration of H⁺ ions in solution = 4.2x10⁻⁵ M

pH for this solution is calculated as:
pH = -log(4.2x10⁻⁵) = 4.38

Also given that concentration of OH⁻ ions in solution = 4.6x10⁻⁴

pOH = -log(4.6x10⁻⁴) = 3.33

We know that, pH + pOH = 14.

pH = 14 - 3.33 = 10.7

Hence, value of pH & pOH is 4.38 and 10.7 respectively.

To know more about pH & pOH, visit the below link:
https://brainly.com/question/24595796

What are the coefficients for the following equation when it is balanced?
CaF2 (aq)
KOH(aq) →
Ca(OH)2 (s)
KF (aq)

Answers

1, 2, 1, 2, in that order.

A bird has flown 300 metres for 6 hours. What is the bird's speed? Formula for speed = d/t * 2 points

40 m/hr

50 m/s

50 m/h

50 m/min​

Answers

Answer:

C

Explanation:

d=300

t=6hr

speed=?

speed=300/6

speed=50m/hr the important thing in this question is to get the right units

What is the predicted change in the boiling point of water when 2.10 g of
barium chloride (BaCl2) is dissolved in 5.50 kg of water?

Answers

The addition of any non-volatile solutes will elevate the boiling point of the solution. The change in boiling point of water by the addition of 2.10 of barium chloride is 0.0028 ° C. Hence, option A is correct.

What is boiling point?

Boiling point of a substance is the temperature at which it changes from liquid to vapour where the two states are in equilibrium. Boiling point of a substance depends on the bond type, molecular mass and purity of it.

The change or elevation of boiling point of a solution can be determined from its molality m and elevation constant Kb and the Van't Hoff factor i as follows:

ΔT = i Kb m.

Molality of the solution is the no.of moles divided by the mass of solvent in kilogram. Given the mass of barium chloride is 2.10 g and its molar mass is 208.23 g . The no.of moles of solute is 2.10/208.23 g = 0.0100.

Molality of the solution can be calculated as follows:

Molality m = 0.0100 / 5.50 Kg

                 = 0.0018 mol/kg.

Now, the  ΔT s calculated from these values. Provided Kb of water is 0.51 ° C /mol and i = 3.

ΔT  = 0.0018 mol/kg × 0.51 × 3

       = 0.0028 ° C.

Therefore, water will boil at 100.0028 ° C. Hence, option A is correct.

To find more about boiling point, refer the link below:

https://brainly.com/question/28203474

#SPJ1

sulphur dioxide reacts with oxygen to produce sulphur trioxide, balance the chemical equation using lcm method?​

Answers

Answer:

2SO2 + O2 → 2SO3

Explanation:

According to this question, sulphur dioxide (SO2) reacts with oxygen to produce sulphur trioxide (SO3). The equation is as follows:

SO2 + O2 → SO3

The above equation is unbalanced because there are unequal number of atoms of each element in the both reactants and products. To balance the equation, we use coefficients to make the number of atoms equal. The balanced equation is as follows:

2SO2 + O2 → 2SO3

- There are 2 moles of S on both sides of the equation.

- There are 4 moles of Oxygen on both sides of the equation.

what would the answer be? if you could help that would be a big help ^^

Answers

Answer:

well a 1000

Explanation:

Can you give me a paragraph about the digestive system?

Answers

Answer:

The digestive system is very important to animal health. Without the digestive system earth might still be lifeless other than bacteria and what not. The digestive system is a system to keep us full and energized. It allows us to chew and swallow our food and let it break down in our belly acid. Then it departs our body through the large, small intestines to then be flushed out to sea.

~ LadyBrain

Explanation:

an organ that is part of the

digestive system his digestive system is extremely simple

What is the frequency of an electromagnetic wave that has a wavelength of
8.5 x 102 m in a vacuum? (The speed of light in a vacuum is 3.00 x 108 m/s.)

A. 1.2 x 10-3 Hz
B. 2.8 x 10-6 Hz
C. 3.5 105 Hz
D. 2.6 x 1011 Hz

Answers

ANSWER

C. 3.5 105 Hz

Maria examines a mixture that appears to be the same throughout. However, when she looks at a sample using a magnifying lens, she can see small droplets of liquid surrounded by another liquid.

Which conclusion best fits her observations?

Answers

Answer:

However, when she looks at a sample using a magnifying lens, she can see small droplets of liquid surrounded by another liquid. Which conclusion best fits her observations? The mixture is a solution because it has the same appearance throughout the sample

pls mark me the brainliest

Help please and thank you

Answers

Answer:

5. The coefficients are: 2, 7, 2, 4

6. The coefficients are: 1, 4, 1, 2

Explanation:

5. Balancing the equation.

__NO₂ + __H₂ —> __NH₃ + __H₂O

The above equation can be balance as illustrated below:

NO₂ + H₂ —> NH₃ + H₂O

There are 2 atoms of O on the left side and 1 atom on the right side. It can be balance by writing 2 before NO₂ and 4 before H₂O as shown below:

2NO₂ + H₂ —> NH₃ + 4H₂O

There are 2 atoms of N on the left side and 1 atom on the right side. It can be balance by writing 2 before NH₃ as shown below:

2NO₂ + H₂ —> 2NH₃ + 4H₂O

There are 2 atoms of H on the left side and a total of 14 atoms on the right side. It can be balance by writing 7 before H₂ as shown below:

2NO₂ + 7H₂ —> 2NH₃ + 4H₂O

Now the equation is balanced. Thus, the coefficients are: 2, 7, 2, 4

6. Balancing the equation:

__SiO₂ + __HF —> __SiF₄ + __H₂O

The above equation can be balance as illustrated below:

SiO₂ + HF —> SiF₄ + H₂O

There are 4 atoms of F on the right side and 1 atom on the left side. It can be balance by writing 4 before HF as shown below:

SiO₂ + 4HF —> SiF₄ + H₂O

There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 2 before H₂O as shown below:

SiO₂ + 4HF —> SiF₄ + 2H₂O

Now the equation is balanced. Thus, the coefficients are: 1, 4, 1, 2

Explain how you determine the molar mass of Al2(SO4)3

Answers

Molar Mass of Al = 27

Molar Mass of S = 32

Molar Mass of O = 16

Putting the molar mass value in Al2 (SO4) 3

27 x 2 + 3 ( 32 + 16 x 4)

54 + 3 ( 32+ 64)

54 + 3 x 96

54 + 288

342

Select the atoms that are likely to gain electrons to form anions:
A. Cesium (Cs)
B. Chlorine (CI)
c. Nitrogen (N)
D. Sulfur (S)
hurryyy asap make u the brainlyeist

Answers

Answer:

c

Explanation:

If you increase the amount of Reactant A, the reaction rate will also increase.

What is this statement an example of?
A. A theory
B. An observation
C. A hypothesis
D. A scientific question

Answers

C not hundred percent sure though

A student made a sketch of a potential energy diagram to represent an endothermic reaction.


Explain, using complete sentences, why the diagram made by the student is correct or incorrect. Be sure to also explain what the values of X and Y represent. (10 points)

Answers

Answer:

Incorrect

Explanation:

X is the reactants

Y is the products

In an endothermic reaction where energy is absorbed, the enthalpy the products (Y) is always higher than the enthalpy of the reactants (X).

Enthalpy change (∆H) = products (Y) - Reactants (X)

For an endothermic reaction, the ∆H value should be positive.

Enthalpy change

The diagram sketched by the students shows the opposite. The diagram shows that the enthalpy of the products (Y) is lower than the enthalpy of the reactants (X). This will give a negative value of ∆H.

It represents an exothermic reaction rather than endothermic.

Therefore, the student is incorrect.

(6) I need help very fast plsss

Answers

Their is a space so the heat is not transferred to the outside wall. Like an insulated coffee mug. If the heated liquid touched the outside wall it would cool the liquid to room temperature.

A 217.6 sample of gas is collected at 9.011 atm and 127.8°C. What volume does the gas have at 44.9 atm and 11.9 °C?M

Answers

Answer:

The correct answer is = 31.04

Explanation:

The relation between volume, temperature and pressure of a fix amount of a gas can be expressed by the combined gas law:

PV/T = k

It can be written as well as

P1V1/T1 = P2V2/T2

Given:

V1 = 217.6

P1 = 9.011 atm

T1 = 127.8°C = 400.95 K

P2 = 44.9

T2 = 11.9 °C = 285.05

Solution:

Putting value in the formula

V2 = P1V1T2/P2T1

= (217.6*285.05*9.011)/44.9*400.95

V2 = 31.04

Substances with a high polarity have a(low/high) surface tension ?

Answers

Answer:

I think they have high, because the nonpolar molecules usually have a much lower surface tension than polar ones.

©
What is the maximum number of electrons that can occupy a box in an orbital filling diagram at any
energy level?
2
6
8
14



Answers

2 :) hope that helps!

Answer:

2

Explanation:

The diagram below represents a beaker of water being heated by a flame. The arrows represent heat
transfer occurring in the beaker.
Which process is represented by the arrows in the diagram?
O condensation
O conduction
O convection
O radiation

Answers

Answer:

condensation

Explanation:

when heated beaker sed condensation

What would happen to the entropy in the reaction 203(9) ► 302(9)?
A. It is impossible to tell.
B. It stays the same.
C. It decreases.
D. It increases.

Answers

D. It increases.

bez number of particles in reaction increases so randomness or entropy increase.

as entropy is the degree of randomness of particles in a system

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