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Nataliya [291]
2 years ago
12

A decrease in temperature reduces the volume of gas

Chemistry
2 answers:
Ksenya-84 [330]2 years ago
7 0

Answer:

<em>Chemical</em><em> </em><em>change</em><em>.</em>

<em> </em><em> </em>

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em>

alisha [4.7K]2 years ago
6 0
A) chemical change.
just the letter A is your answer that says chemical change (sorry had to put extra words for the new policy)
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Which has a greater amount of particles, 1.00 mole of hydrogen (H) or 1.00 moles of oxygen(0)?
Bas_tet [7]

Answer:

Both have the same amount of particles.

Explanation:

From Avogadro's hypothesis, we understood that 1 mole of any substance contains 6.02×10²³ particles.

This implies that 1 mole of Hydrogen contains 6.02×10²³ particles. Also, 1 mole of oxygen contains 6.02×10²³ particles.

Thus, 1 mole of Hydrogen and 1 mole of oxygen contains the same number of particles.

7 0
2 years ago
Science science science science
In-s [12.5K]

Answer:

Sorry

Explanation:

Sorry this is not chemistry but I always try to answer but this time I can't I am so so sorry

4 0
3 years ago
Read 2 more answers
What is the mass of 2.15 moles of calcium hydroxide, Ca(OH)2?
ch4aika [34]

159.3 g

mol= mass (g)/ molecular weight (g/mol)

3 0
3 years ago
The coordination compound Co3[Cr(CN)6]2 contains Co2+ cations and a complex anion. What is the likely oxidation state for Cr in
otez555 [7]

Answer:

-3

Explanation:

The oxidation state or oxidation number of an atom is the total number of electrons that an atom either gains or loses in order to form a chemical bond with another atom.

The complex anion here is [Cr(CN)6]3-.

Now, as the oxidation state of CN or cyanide ligand is -1, and if we suppose the oxidation state of Cr to be 'x', then; x - 6 = -3 (overall charge on the anion),

so x= +3. Hence the oxidation state of Chromium in this complex hexacyanochromium (III) anion comes out to be -3.

.

7 0
2 years ago
This substance consists of two or more different elements chemically combined
kow [346]
The substance would be referred to as a compound substance.
8 0
2 years ago
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