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Troyanec [42]
3 years ago
8

Will mark brainliest for who is right :) so NO GESSING

Chemistry
1 answer:
dem82 [27]3 years ago
7 0

Answer:

Matter undergoes a change. The changes are of two types: Physical and chemical change.

A physical change is a change that involves only a change in the physical state of matter. Its chemical properties remain the same. Usually increasing the temperature or applying pressure or both bring about a physical change. On reversing the condition, that is reducing the temperature or reducing the pressure or both, the original state of matter is restored. In other words, physical changes are reversible.

A chemical change is a change that involves a change in the chemical composition of matter. A new substance is formed. In a chemical change, new chemical and physical properties of the substance are formed. In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance.

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It cant

Explanation:

It can not tell because the size of a human and an object to 2 different sizes. Therefor since they are 2 different sizes they can handle different amounts of temperature.

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a chemist studies two forms of refined gasoline. which of the following branches of chemistry might the chemist us?
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What is the oxidation state of an individual phosphorus atom in PO33−?
kirill [66]

Express the oxidation state numerically (e.g., +1).

SubmitHintsMy AnswersGive UpReview Part

Ions

In an ion, the sum of the oxidation states is equal to the overall ionic charge. Note that the sign of the oxidation states and the number of atoms associated with each oxidation state must be considered. In OH−, for example, the oxygen atom has an oxidation state of −2 and the hydrogen atom has an oxidation state of +1, for a total of (−2)+(+1)=−1.

Part C

What is the oxidation state of an individual phosphorus atom in PO33−?

Express the oxidation state numerically (e.g., +1).

SubmitHintsMy AnswersGive UpReview Part

Part D

What is the oxidation state of each individual carbon atom in C2O42−?

Express the oxidation state numerically (e.g., +1).

8 0
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What is the salt that is produced when calcium hydroxide (Ca(OH)2) reacts with sulfuric acid (H2SO4)?
g100num [7]
The salt that is produced is called, "Calcium Sulfate".
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