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3 years ago

When substances combine to form mixtures they keep their properties. O True O False

Chemistry

2 answers:

Gnesinka [82]3 years ago

8 0

Answer:

True

Explanation:

Rudik [331]3 years ago

7 0

Answer:

True

Explanation:

This is true because When two or more elements or compounds are blended without combining chemically, you've got a mixture. Each substance in a mixture keeps its own properties, and mixtures can be separated using physical or mechanical means. Solids, liquids and gases can all be blended into mixtures.

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Lana71 [14]

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2 years ago

Can any of you unscramble the word mmncotiuy

Elden [556K]

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3 years ago

Read 2 more answers

A solution used to chlorinate a home swimming pool contains 7% chlorine by mass. An ideal chlorine level for the pool is one par

deff fn [24]

Answer:

Volume of chlorine = 61.943 mL

Explanation:

Given:

Volume of the water in the Pool = 18,000 gal

also,

1 gal = 3785.412 mL

thus,

Volume of water in pool = 18,000 × 3785.412 = 68,137,470 mL

Density of water = 1.00 g/mL

Therefore,

The mass of water in the pool = Volume × Density

The mass of water in the pool = 68,137,470 mL × 1.00 g/mL = 68,137,470 g

in terms of million = $\frac{\textup{68,137,470}}{\textup{ 1,000,000}}$

= 68.13747 g

also,

1 g of chlorine is present per million grams of water

thus,

chlorine present is 68.13747 g

Now,

volume = $\frac{\textup{Mass}}{\textup{Density}}$

Volume of chlorine = $\frac{\textup{68.13747 g}}{\textup{1.10 g/mL}}$

Volume of chlorine = 61.943 mL

3 0

3 years ago

What is an formed when liquid reactants

Gnesinka [82]

im not understanding the question, but if its a solid then the reactants are precipitate

5 0

2 years ago

Calculate the new boiling point of a solution if 10.00 g of a non-ionizing compound (C3H5(OH)3) is dissolved in 90.00 g of H2O.

erma4kov [3.2K]

Answer:

Boiling T° of solution = 100.6

Explanation:

Formula for elevation of boiling point is:

ΔT = Kb . m . i

where ΔT means Boiling T° of solution - Boiling T° of pure solvent

Our solute is a non ionizing compound.

i = 1, because it is a non ionizing compound. i, indicates the ions dissolved in solution.

m = molality (moles of solute dissolved in 1 kg of solvent)

90 g of solvent = 0.09 kg of solvent

We convert mass of solute to moles (by the molar mass):

10 g . 1 mol /92.09 g = 0.108 moles

m = 0.108 mol /0.09 kg = 1.21 m

Let's replace data: Boiling T° of solution - 100°C = 0.51 °C/m . 1.21 m . 1

Boiling T° of solution = 0.51 °C/m . 1.21 m . 1 + 100°C

Boiling T° of solution = 100.6

5 0

2 years ago