Chemistry, 31.08.2019 23:00, zack66828

Which must be a mixture of substances?
1. solid
2. liquid
3. gas
4. solution

Answers: 1

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the one that must be a mixture of substance is : 4. Solution here are some examples that proof option 1 - 3 could consist only with a single substance : Solid = Fe ( most commonly known as iron) Gas = He ( Most commonly known as helium) Liquid = Hg (most commonly known as mercury)

answered: Tboogie2037

4. Solution

Further explanation

Mixtures are materials composed of two or more kinds of substances that still possess their original properties. Mixtures can also be said to represent a combination of several substances, elements or compounds

There are two types of mixtures, i.e., homogeneous mixture (or solution) and heterogeneous mixture.

Homogeneous mixture: mixture which each part contains a similar amount of solute, for example, vinegar acid solution, sugar solution, and salt solution.Heterogeneous mixes: mixtures of which each part contains an unequal amount of solute, for example, river water, sewage water, and coffee drinks.

The solution is a homogeneous mixture of two or more substances that dissolve one another and each of the constituent substances cannot be distinguished physically anymore.

The solution consists of two components, i.e., solute and solvent.For example, a salt solution consists of salt as a solute and water as a solvent.

In chemistry, we already know the phase of matter or state of matter, i.e., solid (s), liquid (l), gas (g), and aqueous (aq). Every chemical solution in a reaction is labeled as an aqueous phase, e.g, $\boxed{ \ NaCl_{(aq)} \ }$ as a salt solution.

Consider the following examples:

$\boxed{ \ Fe_{(s)} \ }$ as a solid metal iron, an element. $\boxed{ \ H_2O_{(l)} \ }$ as liquid water. $\boxed{ \ H_2O_{(s)} \ }$ as ice solids. $\boxed{ \ H_2O_{(g)} \ }$ as water vapor with a gaseous phase. $\boxed{ \ H_2O_{(l)}, H_2O_{(s)}, H_2O_{(g)} \ }$ are compounds of the same chemical formula but different phases.Learn moreAbout the mass and density of substances linkCalculating the pH value of weak base linkHow was the water filtered to remove debris and living organisms? link

Keywords: which must be, a mixture of substances, solid, liquid, gas, solution, homogeneous, heterogeneous, phase of matter, state, aqueous, salt, water

answered: Guest

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

answered: Guest

that tool would be a compass

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Which must be a mixture of substances?
1. solid
2. liquid
3. gas
4. solutio...