3 years ago

Why is water considered a pure substance and not a mixture?

Chemistry

1 answer:

Damm [24]3 years ago

5 0

I believe it has something to do with the H2O molecules, because a chemical compound is not a mixture.

You might be interested in

A student prepares a solution by dissolving 60.00 g of glucose (molar mass 180.2 g mol-1) in enough distilled water to make 250.

anyanavicka [17]

Answer:

1.332 Molar is the molarity of the glucose solution.

Explanation:

Molarity of the solution is the moles of compound in 1 Liter solutions.

$Molarity=\frac{\text{Mass of compound}}{\text{Molar mas of compound}\times Volume (L)}$

Mass of glucose = 60.00 g

Molar mass of glucose = 180.2 g/mol

Volume of the solution = V = 250.0 mL = 0.250 L

(1 mL = 0.001 L)

$Molarity=\frac{60.00 g}{180.2 g/mol\times 0.250 L}=1.332 mol/L$

1.332 Molar is the molarity of the glucose solution.

4 0

3 years ago

Helium is most likely to behave as an ideal gas when it is under(1) high pressure and high temperature(2) high pressure and low

Mekhanik [1.2K]

Helium is most likely to behave as an ideal gas when it is under 2) High pressure and low temperature.

3 0

4 years ago

Read 2 more answers

A red sports drink contains Red 40 dye. A 5.4 mL aliquot of this sports drink was diluted to 25.0 mL with deionized water in a v

miskamm [114]

Answer:

84.0 ppm is the concentration of Red 40 dy in the original sports drink.

Explanation:

Concentration of red dye in sport drink before dilution $C_1=?$

Volume of the sport drink before dilution $V_1=5.4 mL$

Concentration of red dye in sport drink after dilution $C_2=18.1 ppm$

Volume of the sport drink after dilution $V_2=25.0 mL$

$C_1V_1=C_2V_2$ ( dilution )

$C_1=\frac{C_2V_2}{V_1}=\frac{18.1 ppm\times 25.0 mL}{5.4 mL}$

$C_1=83.80 ppm\approx 84.0ppm$

84.0 ppm is the concentration of Red 40 dy in the original sports drink.

6 0

3 years ago

Where dose light of the moon come from

timama [110]

Answer:

The Moon gets its light from the Sun. In the same way that the Sun illuminates Earth, the Moon reflects the Sun's light, making it appear bright in our sky. Have your child hold the fruit at arm's length, pointing at the light.

hope this helps :)

3 0

3 years ago

Read 2 more answers

What are other ways you can use wind energy to create electricity?

Phantasy [73]

You can use a fan on the wire. That's one way.

8 0

3 years ago

Read 2 more answers