Chemistry, 22.03.2020 02:32 Randomtrashygirl

3)
Which statement describes a mixture of sand and
water at room temperature?
(1) It is heterogeneous, and its components are
in the same phase.
(2) It is heterogeneous, and its components are
in different phases.
(3) It is homogeneous, and its components are in
the same phase.
(4) It is homogeneous, and its components are in
different phases.

Answers: 2

Show answers

Answers

The statement describes a mixture of sand and water at room temperature - (2) It is heterogeneous, and its components are in different phases.

A mixture is a physical mix or combination of two or more types of substances together. In the mixture, each component exhibits its original properties and can be separated.

On the basis of the state or phase of components mixture are two types:

homogeneous mixture - if components have the same physical state or phase that is liquid-liquid or solid-solid or gas-gas.heterogeneous mixture - if components have different physical states such as solid-liquid, gas-solid, liquid-gas.

If sand and water mix together at room temperature there would be a heterogeneous mixture due to two different phases present in this mixture sand is in the solid phase whereas water is in the liquid phase.

Thus, the statement describes a mixture of sand and water at room temperature - (2) It is heterogeneous, and its components are in different phases.

Learn more about mixture:

link

Answer from: xojade

(2) It is heterogeneous, and its components are in different phases.

Explanation:

The sand is a solid, and the water is a liquid. These are two different phases, and you can see the boundaries between them. The mixture is heterogeneous.

(1) is wrong. By definition, a heterogeneous mixture consists of more than one phase.

(4) is wrong. By definition, a homogeneous mixture consists of one phase.

Answer from: Quest

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).

Answer from: Quest

Another question on Chemistry

Chemistry, 21.06.2019 16:40

The modern periodic table has groups.

Answers: 1

Answer

Chemistry, 22.06.2019 20:00

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Answers: 3

Answer

Chemistry, 22.06.2019 22:30

The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)

Answers: 2

Answer

Chemistry, 22.06.2019 22:30

What is a number added in front of a formula in order to balance the equation

Answers: 1

Answer

You know the right answer?

3)
Which statement describes a mixture of sand and
water at room temperature?
(1) It...