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prisoha [69]
3 years ago
11

Help me please !!!!!!8th grade science

Chemistry
1 answer:
Alexus [3.1K]3 years ago
6 0

The Correct option is E. Chemical energy to Mechanical energy.

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Jimmy mixes 2 chemicals in the lab. The chemicals change color and they get hot. The rise in temperature
gladu [14]

Answer:

A chemical reaction.

Explanation:

A change in temperature is evidence of a chemical reaction.

Also: They are chemicals...

3 0
3 years ago
Which of the following scientists was the first to determine the
Maru [420]

Answer:

Robert Boyle

Explanation:

Robert Boyle was an Irish chemist and is famously referred to as the first modern chemist. He was born on the 25th of January, 1627 in Lismore, Ireland and died on the 31st, December 1691, London, United Kingdom.

Robert Boyle was the first to determine the relationship between the pressure and volume of a gas.

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

PV = K

P_{1}V_{1} = P_{2}V_{2}

Where;

V1 and V2 represents the initial and final volumes respectively.

T1 and T2 represents the initial and final temperatures respectively.

8 0
3 years ago
What is the average of atomic mass of carbon if 98.90% of the atoms are c-12 and 1.100% are c-13 atoms?
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Answer:

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5 0
2 years ago
A generator does work on an electric heater by forcing an electric current through it. Suppose 1 kJ of work is done on the heate
azamat

Answer:

The change in internal energy of the heater is 0 kJ

Explanation:

∆U = Q - W

Q is quantity of heat transferred = 1 kJ

W is work done on the heater = 1 kJ

Change in internal energy (∆U) = 1 - 1 = 0 kJ

3 0
3 years ago
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HELP ME || WILL MARK BRAINLEST ||Which product could contain a substance formed by Reaction B?
lawyer [7]

Answer:

Antacid

Explanation:

Hope this helps:)

7 0
3 years ago
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