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ivann1987 [24]
3 years ago
14

The law of conservation of mass states that mass must be created or destroyed in ordinary chemical and physical changes. Is this

true or false?
Chemistry
1 answer:
Anuta_ua [19.1K]3 years ago
6 0

Answer:

The statement stated above is true.

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Consider the following balanced equation:
Alenkasestr [34]

Answer:

D

Explanation:

bs I just done that on my work and asked my teacher if it was right she said it was

3 0
4 years ago
Determine the molarity for the fixer Sodium carbonate decahydrate (I dissolved 127.62 grams of sodium carbonate for every 4 lite
grin007 [14]

Answer:

0.112 M.

Explanation:

  • Molarity is the no. of moles of solute in a 1.0 L of the solution.

M = n/V.

<em>M = (mass/molar mass)solute x (1000/V of the solution).</em>

mass = 127.62 g.

molar mass = 286.138 g/mol.

V of the solution = 4.0 L = 4000.0 mL.

<em>∴ M = (mass/molar mass)solute x (1000/V of the solution)</em> = (127.62 g / 286.138 g/mol) x (1000 / 4000.0 mL) = <em>0.1115 M ≅ 0.112 M.</em>

4 0
4 years ago
Which of the following statements regarding enzymes is FALSE? a. Enzymes alter the free energy change (ΔG) of the reactions whic
const2013 [10]

Answer:

Enzyme function is dependent on the three-dimensional structure or conformation of the enzyme

Explanation:

Enzyme are biological catalysts.

So they do alter the path of the reaction where the free energy change (or activation energy) is low then the non enzymatic pathway.

Thus the statement

Enzymes alter the free energy change (ΔG) of the reactions which they catalyze : True

It is known that for enzyme we function they need an optimum temperature and pH condition so the statement

Enzyme function is dependent on the pH and temperature of the reaction environment: true

This is also true that

Enzyme activity can be inhibited if the enzyme is bound by a noncompetitive inhibitor.

The false statement is : Enzyme function is dependent on the three-dimensional structure or conformation of the enzyme

6 0
3 years ago
As the sun sets, the temperature of the room decreases. Explain how this affects the particle motion of the gas particles in the
Veseljchak [2.6K]

Answer:

Heres a very LONG answer-

The real answer:

Its in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles.

8 0
3 years ago
Some freshwater reservoir
olya-2409 [2.1K]

what is full answer I sont get it

8 0
3 years ago
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