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2 years ago

I would really appreciate someone could answer this question for mee! I will mark brainliest aswell. :)

Chemistry

2 answers:

svp [43]2 years ago

4 0

Answer:

Explanation:

mass is like matter it cant be created or destroyed so mass stays the same.

Temka [501]2 years ago

3 0

Answer:

<em>C) It is equal to the total mass of the products.</em>

Explanation:

The <em>law of conservation of mass</em> states that in a chemical reaction, the total mass of reactants is equal to the total mass of products.

- profparis

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3 years ago

Can someone plzzz helppp meeee!!!!!!

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I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wtjfavyw

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3 years ago

What volume of a 2.25 M sodium chloride solution will contain 4.58 moles of sodium chloride

Rzqust [24]

Answer:

Option E. 2.04 L

Explanation:

Data obtained from the question include:

Molarity of NaCl = 2.25 M

Mole of NaCl = 4.58 moles

Volume =..?

Molarity is simply defined as the mole of solute per unit litre of the solution. It is represented mathematically as:

Molarity = mole /Volume

With the above formula, we can obtain the volume of the solution as follow:

Molarity = mole /Volume

2.25 = 4.58/volume

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2.25 x volume = 4.58

Divide both side by 2.25

Volume = 4.58/2.25

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3 years ago

Under which conditions (in terms of kinetic energy) does boiling occur? How is the kinetic energy in the liquid increased?

Simora [160]

Explanation:

Boiling is defined as a process in which vapor pressure of a liquid substance becomes equal to the atmospheric pressure.

During this change liquid and vapors remain in equilibrium and the equation for this change is as follows.

$X(l) \rightleftharpoons X(g)$

Therefore, when boiling takes place then average kinetic energy of particles in liquid phase equals to the average kinetic energy of particles in vapor phase.

Hence, we can increase the kinetic energy of particles in liquid phase by increasing the temperature because kinetic energy is directly proportional to temperature as follows.

K.E = $\frac{3}{2}kT$

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3 years ago

Which statements true about the total mass of the reactants during a chemical change? (5 points)

Lapatulllka [165]

It is greater than the total mass

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2 years ago