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3 years ago

Mass does not change during a chemical change. is the same true for physical change?

Chemistry

1 answer:

Mashutka [201]3 years ago

4 0

Answer:

Mass states that mass is neither created nor destroyed in a chemical reaction or a physical transformation

Explanation:

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ss7ja [257]

Newton's F=ma, which means the force (F) acting on an object is equal to the mass (m) of an object times its acceleration (a)

Explanation:

F = ma, or force is equal to mass times acceleration.

4 0

2 years ago

When potassium metal is placed in water, a large amount of energy is released as potassium hydroxide and hydrogen gas are produc

blsea [12.9K]

Answer: The given reaction redox reaction not a combustion reaction.

Explanation:

Redox Reaction is defined chemical reaction in which oxidation and reduction takes place simultaneously. In Oxidation addition of oxygen occurs and in reduction addition of hydrogen occurs.

$2K+2H_2O\rightarrow 2KOH+H_2$

Potassium is getting oxidized by addition of oxygen.

Water us reduced to hydrogen gas by removal of oxygen

Combustion reaction is defined as chemical reaction in which burning of a chemical compound or element takes place in presence of oxygen occurs.

In the given reaction, oxygen molecule is absent which means this reaction is not combustion reaction.

Hence ,the given reaction redox reaction not a combustion reaction.

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3 years ago

did the data support Martha's hypothesis? Use evidence to explain why or why not. if you feel the data were inconclusive, explai

levacccp [35]

Answer:

Yes, the data supports the researchers hypothesis.

Explanation:

From the given data, in all the cases except the fanning event in females, the fish parents which was fed full ration appeared.

Take for example, 30.7 mouthing events in males given full ration as opposed to 24.5 events when they were fed on half ration.

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3 years ago

Proteins made by Rough ER travel to the golgi bodies in sacks called?

Alex73 [517]

They are the little round things on er so that is ribosome

8 0

3 years ago

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Energy changes WITHIN an energy type is called what?

Airida [17]

Answer:

What is energy transformation? One type of energy can change into another type of energy. Energy transformation means the changing of energy from one type to another, e.g. from kinetic energy to electrical energy, or from potential energy to kinetic energy.

Explanation:

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2 years ago

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