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lakkis [162]
3 years ago
15

What physical changes occured while you ate breaskfast?

Chemistry
2 answers:
oksano4ka [1.4K]3 years ago
8 0

Answer:  It made you not hungry anymore and filled you up. It also helped your brain be more focused.

Explanation:

A physical change is a change that doesn't create a new substance or change the substance. Usually this involves a size or shape change. ... A chemical change is a change that creates a new substance or changes the substance. Usually, this involves color change, temperature change, and/or a new substance being formed.

hope this help luv

KatRina [158]3 years ago
3 0

Answer:

Now eating can change food both physically and chemically. Once your spit touches the food chemicals in the saliva begin to change the food chemically.

Explanation:

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How many moles of water can be obtained from the reaction of 4 moles of O2?
Yuliya22 [10]

Answer: 8moles

Explanation:

The reaction below shows the formation of 2 moles of water from 2 moles of hydrogen and 1 mole of oxygen respectively.

2H2(g) + O2 (g) --> 2H2O(l)

So, if 1 mole of O2 produce 2 mole of H2O

4 moles of O2 will produce Z mole of H2O

To get the value of Z, cross multiply

1 x Z = 4 x 2

Z = 8

So, the equation will be 8H2(g) + 4O2 (g) --> 8H2O(l)

Thus, 4 moles of O2 will produce 8moles of H2O .

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3.64 hope that helps you 
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Explanation:

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