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3 years ago

When carbon an oxygen combine chemically, the mass of the product is....

Chemistry

2 answers:

Reika [66]3 years ago

7 0

Answer:The correct answer is option (2).

Explanation:

According to Law of Conservation of Mass , mass can neither be created nor be destroyed.

In a balanced chemical equation of reaction , the mass of the reactant is always equal to the mass of the products. As we can observe this law in the chemical reaction between carbon and oxygen.

$C+O_2\rightarrow CO_2$

Total mass of reactant = 12 g/mol + 32 g/mol = 44 g/mol

Total mass of products = (12 g/mol + 2 × (16 g/mol)) = 44 g/mol

Since,the law of conservation of mass is justified by the above reaction .Hence ,the correct answer is option (2).

ycow [4]3 years ago

6 0

It should be equal to the mass of the carbon plus the mass of the oxygen. This is because of the conservation of mass law. Mass is never created or destroyed only conserved. Hope this helped

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A mixture with medium sized particles that do not settle out is called

Alexandra [31]

Answer: colloid

Explanation:

Colloids are solutions in which small sized particles are suspended throughout the solution as they do not settle own their own. Colloids are defined as the mixtures where the size of the particle is within the range of 2nm to 1000 nm. In these mixtures, physical boundary is seen between the dispersed phase and dispersed medium.

Colloids are solutions with particle size intermediate between true solutions and suspensions. Suspensions have large sized particles which settle when left undisturbed for sometime and thus can be filtered off easily. The particle size in colloids is less and hence they do not settle under the effect of gravity.

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3 years ago

the separation of ink into its different pigments during chromatography is a a. solubility b. physical property c. physical chan

madreJ [45]

c. physical change

Explanation:

The separation of ink into its different pigments during chromatography is a physical change.

Ink is a mixture of many different pigments.

During chromatography, a mixture is separated based on the relative migration of constituents of mixture over an adsorbent.

Separation techniques are used to celebrate mixtures based on their physical properties.
During a physical change only the physical properties of matter like their form and state is changed.
The process is easily reversible and no new kinds of matter are formed.

learn more:

Physical property brainly.com/question/10972073

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4 years ago

Write a short definition of hydrochloric acid

Stella [2.4K]

Answer:

Explanation:

a strongly acidic solution of the gas hydrogen chloride in water

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3 years ago

What is the most likely reason that nonmetals are electrical insulators?

creativ13 [48]

The reason nonmetals are electrical insulator is since valence shells in nonmetal atoms are almost full, the atoms attract electrons and hold them tightly to fill their valence. The reason why it acts as an insulator is the high ionization energy it has. It prevents any electron from leaving an atom easily even when an electric field is applied.

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3 years ago

Read 2 more answers

*explain your answer for brainliest

Over [174]

Answer:

3 mol Cl₂/2 mol AlCl₃ (three over two)

Step-by-step explanation:

Start with the balanced equation"

2Al + 3Cl₂⟶ 2AlCl₃

The steps in the calculation are

mass of AlCl₃ ⟶ moles of AlCl₃⟶ moles of Cl₂ ⟶ mass of Cl₂

The critical step is the conversion of moles.

You multiply the moles of AlCl₃ by a conversion factor to get moles of Al:

Moles of AlCl₃ × conversion factor = moles of Al.

The conversion factor is the molar ratio, and it uses the coefficients of the formulas in the balanced equation.

It is either (2 mol AlCl₃/3 mol Cl₂) or (3 mol Cl₂/2 mol AlCl₃).

You choose the one that has the desired units of the answer in the numerator.

We choose the second option, because it has the correct units.

For example,

$\text{0.2 mol AlCl}_{3} \times \frac{3\textbf{ mol Cl}_{2} }{ 2\text{ mol AlCl}_{3} } = 0.3\textbf{ mol Cl}_{2})$

Notice how the units "mol AlCl₃" cancel and the correct units appear in the answer.

If we had used the other conversion factor, we would have gotten the wrong units.

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3 years ago