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Katena32 [7]
3 years ago
12

1) Which of the following is a property of matter that can be observed without changing thecomposition of the matter?

Chemistry
2 answers:
USPshnik [31]3 years ago
7 0

Answer:

mass and volume

Explanation:

vovikov84 [41]3 years ago
3 0

Answer:

Rusting of iron is one form of oxidation. Whether a substance oxidizes or corrodes describes a chemical property of matter.

HOPE THIS HELPS! ^_^

Explanation:

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List the number of significant figures for the following numbers:
Dennis_Churaev [7]

Answer:

a) 2

b) 1

c( 1

d( 4

according to the picture

3 0
3 years ago
What do a mole of magnesium and a mole of iron have in common
lukranit [14]
What they have in common is that they both have the same number of atoms. Hope this helps. :)
7 0
4 years ago
You
Igoryamba

Answer:

The arm that was not sprayed with anything

Explanation:

The control group would be <u>the arm that was not sprayed with anything</u>.

<em>The control group during an experiment is a group that forms the baseline for comparison in other to determine the effects of a treatment. The control group does not include the variable that is being tested and as such, it provides the benchmark to measure the effects of the tested variable on the other group - the experimental group. In this case, the experimental group would be the arm that was sprayed with the repellent.</em>

8 0
3 years ago
What element(s) must be present in a molecule for it to be considered an organic molecule?
Burka [1]
Carbon is the one and only element to make a molecule organic.
4 0
3 years ago
The notation for a particular nucleus is r3785b. in an electrically neutral atom. How many electrons are in orbit about this nuc
Serhud [2]

^{85}_{37}Rb has 37 electrons in the orbit about its nucleus.

<h3>How to write an atomic symbol with atomic mass and atomic number?</h3>

Atomic mass is the total number of neutrons and protons present in the nucleus of an element.

The atomic number is the total number of protons present in the nucleus of an element.

For writing an atomic symbol, atomic mass is written on the top left of the atomic symbol, and the atomic number is written on the downside of the left of the symbol.

^{Atomic mass}_{Atomic number}X

An electrically neutral atom is an atom that has an equal number of electrons as well as protons.

Thus from the above conclusion we can say that  ^{85}_{37}Rb has 37 electrons.

Learn more about Atomic mass and atomic number here:

brainly.com/question/3187640

#SPJ4

3 0
2 years ago
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