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amm1812
3 years ago
13

What does it mean when to say that mass is coserved during a physical change?

SAT
1 answer:
Likurg_2 [28]3 years ago
4 0

During a physical change, the mass is conserved because it isn't permanently changed, like a chemical change. A chemical change would be something like burning a piece of paper, and a physical change would be something like cutting up pieces of paper (can be put back together).

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A concise introduction to mixed methods research pdf
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The 'Mixed methods' is known to be a kind of a research approach and it is one where a researchers is known to take and examine both quantitative and qualitative data inside the same study.

<h3>What is the model about?</h3>

The Growth of mixed methods research is one that is seen in a lot of discipline such as the nursing and it is one whose type of user research often combines qualitative and quantitative methods in one study.

Hence, The 'Mixed methods' is known to be a kind of a research approach and it is one where a researchers is known to take and examine both quantitative and qualitative data inside the same study.

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8 0
2 years ago
when iron rusts and forms iron oxide, the iron oxide has more mass than the iron. which statement correctly explains this observ
GarryVolchara [31]

The reason why iron oxide has more mass than the iron is because Iron oxide has oxygen atoms, and pure iron does not.

When iron rusts and forms iron oxide, the iron oxide has more mass than the iron. Which statement correctly explains this

observation?

(A)Iron oxide has oxygen atoms, and pure iron does not.

(B)The oxygen atoms in iron oxide have more mass than the iron atoms in pure iron.

(C)The iron atoms in iron oxide have more mass than pure iron.

(D)There are more iron atoms in iron oxide than in pure iron.

When a chemical reaction takes place, other atoms are combined with pure elements to form compounds. This addition of another atom (oxygen) after reaction makes iron oxide formed heavier than pure iron.

Iron oxide is a chemical substance formed when pure iron rusts. The formation of iron oxide is a chemical reaction.

Hence, the correct answer to the question is;  the iron is heavier  because Iron oxide has oxygen atoms, and pure iron does not.

Learn more: brainly.com/question/6284546

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Research topic and research question
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Which element below is least reactive? Which element below must be stored in oil because of its reactivity?
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What are the elements to be stored?

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