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telo118 [61]
2 years ago
13

Is water an element compound or mixture

Chemistry
1 answer:
timama [110]2 years ago
4 0
It is a Compound.

Water can't be a mixture because it is chemically bonded and cannot be separated into H2 and O by physical means.

And water cannot be an element, because it is made of atoms of different types [H and Oxygen]
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Use the collision theory to discuss how temp., concentration and surface area affect the rate of a chemical reaction?
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3 years ago
What is the percent by mass of potassium in KFe(CN)?
vladimir1956 [14]

Answer:

Explanation:

1. Add the atomic mass of all the elements.

39+55.8+12+14= 120.8

2.Divide atomic mass of potassium by total atomic mass

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8 0
3 years ago
A/1 * B/C = D
grigory [225]

Answer : 4.8 florins can you exchange for your 4 guilders.

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3 0
2 years ago
8.43g of CaCl2·2H2O is dissolved in 40.0g of H2O. What is the molality of the solution? (Note that the H2O in the CaCl2·2H2O mus
lara31 [8.8K]

Answer:

[CaCl₂·2H₂O] = 1.43 m

Explanation:

Molality is mol of solute / kg of solvent.

Mass of solvent = 40 g

Let's convert g to kg → 40 g / 1000 = 0.04 kg

Let's determine the moles of solute (mass / molar mass)

8.43 g / 146.98 g/mol = 0.057 mol

Molality = 0.057 mol / 0.04 kg → 1.43

3 0
3 years ago
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Answer:

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3 0
3 years ago
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