3 years ago

Which cannot be separated int simpler substances? compound element solution mixture

Chemistry

2 answers:

Rufina [12.5K]3 years ago

7 0

Answer:

element

Explanation:

i just did on edgen

navik [9.2K]3 years ago

4 0

An element can't be separated

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C6H12O6 is the formula for a sugar molecule.molecules are classified as?

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Answer:

D-Glucose

Explanation:

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2 years ago

What is the energy released or absorbed as heat when one mole of a compound is produced by combination of its elements? select o

suter [353]

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3 years ago

The compound trimethylamine, (CH3)3N, is a weak base when dissolved in water. Write the Kb expression for the weak base equilibr

Zina [86]

Answer:

Kb = [OH⁻] . [C₃H₉NH⁺] / [ C₃H₉N ]

Explanation:

The equation for the reaction of trimethylamine when it is dissolved in water is:

C₃H₉N + H₂O ⇄ C₃H₉NH⁺ + OH⁻ Kb

1 mol of trimethylamine catches a proton from the water in order to produce trimethylamonium.

It is a base, because it give OH⁻ to the medium

Expression for Kb (Molar concentration)

Kb = [OH⁻] . [C₃H₉NH⁺] / [ C₃H₉N ]

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3 years ago

Which compound is produced when HCl(aq) is neutralized by Ca(OH)2(aq)?

kiruha [24]

<u>Answer:</u> The correct answer is Option 1.

<u>Explanation:</u>

Neutralization reaction is defined as the reaction in which acid reacts with a base to produce a salt along with water.

Here, HCl is an acid and $Ca(OH)_2$ is a base. When these two compounds react, the salt obtained is calcium chloride.

The equation for the above reaction is given by:

$2HCl(aq.)+Ca(OH)_2(aq.)\rightarrow CaCl_2(s)+2H_2O(l)$

Hence, the correct answer is Option 1.

8 0

2 years ago

Read 2 more answers

Select the correct answer.

Alex

no:A

is a correct answer

7 0

3 years ago

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