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Naya [18.7K]
3 years ago
10

A chemical change involves a change in ________. A chemical change involves a change in ________. phase the elements of a molecu

le how atoms are bonded all of the above
Chemistry
1 answer:
Firlakuza [10]3 years ago
4 0

Answer:

All of the above.

Explanation:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.

This process is not reversible and a change of energy that is sometimes heat is given off.

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How can a chemical reaction be sped up?Select from the drop-down menu to correctly complete the statement.
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Adding more baking soda and vinegar to the bag in the Air Bag Lab resulted in faster production of gaseous products True False
nika2105 [10]

Answer:

True

Explanation:

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5 0
2 years ago
Which statements are true about Figure I and Figure II below? (Check all that apply)
Scilla [17]

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5 0
3 years ago
1. 90.0 mL of distilled water is added to a 10.0mL sample of 0.150mol/L sodium
aniked [119]

Answer: dilute

Explanation:

A concentrated solution which is used to prepare solutions of lower concentrations by diluting it with addition of water.

A dilute solution is one which contains lower concentration.

Using Molarity equation:

M_1 =concentration of stock solution = 0.150 mol/L

V_1 = volume of stock solution = 10.0 ml

M_2 = concentration of dilute solution = ?

V_2 = volume of dilute solution = (10.0+90.0) ml = 100.0 ml

0.150\times 10.0=M_2\times 100.0

M_2=0.015mol/L

As the concentration is less than the original concentration, the solution is termed as dilute.

7 0
3 years ago
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