Where can fire might be used as a management tool ?

Which solution is a homogeneous mixture?

avanturin [10]

salt and water solution is a homogeneous mixture

Explanation:

Homogeneous mixtures generally termed as solutions, have an identical similar occurrence and form throughout (the prefix "homo" means the same). Solutions consist of particles as tiny as fragments or molecules. For instance, a sugar solution is homogeneous because only transparent liquids can be seen. Homogeneous mixtures only have individual phase: gas, liquid or solid.

Solvent: normally the material in the greater amount. The material used to dissolve the solute or solutes. Example: water.

Solute: ordinarily the substance in the lesser amount. The substance dissolved by the solvent. Example: salt

Salt and water solution is homogeneous because only transparent liquids can be seen.

3 0

3 years ago

A geochemist in the field takes a 25.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X .

san4es73 [151]

Answer:

1- Yes, we can calculate the solubility of mineral compound X.

2- 0.012 g/mL.

Explanation:

1- Using only the information above, can you calculate the solubility of X in water at 15.0 °C?

The information available is:

The volume of water sample = 25.0 mL.

Weight of the mineral compound X after evaporation, drying, and washing = 0.30 g.

∴ Yes, we can calculate the solubility of mineral compound X.

2- If you said yes, calculate it.

∵ 25.0 mL of water sample contains → 0.30 g of the mineral compound X.

∴ 1.0 mL of water sample contains → ??? g of the mineral compound X.

1.0 ml of water sample will contain (0.3 g/25.0 mL) 0.012 g.

∴ The solubility of the mineral compound X in the water sample is 0.012 g/mL.

4 0

3 years ago

dinitrogen pentoxide decomposes to form nitrogen dioxide oxygen, following the equation 2N2O5 -> 4NO2. at a certain time poin

Temka [501]

Rate of production of NO₂ = 0.2 M/s

Rate of production of O₂ = 0.05 M/s

<h3>Further explanation</h3>

Given

The rate of N₂O₅ : 0.1 M/s

Reaction

2N₂O₅⇒4NO₂+O₂

Required

The rate of production of NO₂ and O₂ at the same time point

Solution

Rate of disappearance of N₂O₅ = reaction rate x coefficient of N₂O₅

0.1 M/s=reaction rate x 2

reaction rate = 0.05 M/s

The rate of production of NO₂=

Rate of production of NO₂ = reaction rate x coefficient of NO₂

Rate of production of NO₂ = 0.05 M/s x 4

Rate of production of NO₂ = 0.2 M/s

The rate of production of O₂=

Rate of production of O₂ = reaction rate x coefficient of O₂

Rate of production of O₂ = 0.05 M/s x 1

Rate of production of O₂ = 0.05 M/s

5 0

3 years ago

Read 2 more answers

What is generally true about rate over the course of a reaction?. Rate decreases because there are more collisions as the reacti

Vlad1618 [11]

The best answer among the choices listed is the third option. The rate over the course of a reaction decreases because the concentration of reactants decreases. As the concentration of the reactants decreases, there is less particles to form the products therefore less rate.

8 0

3 years ago

Read 2 more answers

Which factors must be equal when a reversible chemical process reaches equilibrium?

Anon25 [30]

The concentration of the reactants and products remain constant. Because the rates of the forward and reverse reaction are equal there is no net change to the amount of reactants or products produced.May 19, 2011

3 0

3 years ago