The monoprotic acid from among the following isa. H2CO3.
b. H2SO4.
c. H3PO4.
d. HCl.

Answers

Answer 1

Answer:

Answer: Option (d) is the correct answer.

Explanation:

An acid which gives only one hydrogen ion or $H^(+)$ ions upon dissociation in an aqueous solution is known as a monoprotic acid.

Whereas when an acid gives two hydrogen or $H^(+)$ ions upon dissociation in an aqueous solution is known as a diprotoc acid.

And when an acid gives three hydrogen or $H^(+)$ ions upon dissociation in an aqueous solution is known as a triprotoc acid.

Therefore dissociation of the given acids in an aqueous solution will be as follows.

$H_(2)CO_(3) \rightarrow 2H^(+) + CO^(2-)_(3)$

$H_(2)SO_(4) \rightarrow 2H^(+) + SO^(2-)_(4)$

$H_(3)PO_(4) \rightarrow 3H^(+) + PO^(2-)_(4)$

$HCl \rightarrow H^(+) + Cl^(-)$

Hence, we can conclude that out of the given options, HCl is the monoprotic acid.

Answer 2

Answer:

Monoprotic acid are acids having only one hydrogen atoms after dissociation into ions from its compound. The monoprotic acid from among the following is HCl. The answer is letter D. HCl → H+ + Cl-. Note that there is only one H+ ion upon dissociation.

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Plants and algae that convert sunlight to food energy are called producers

primary consumers

tertiary consumers

decomposers

Answers

The correct answer is the first choice given. Plants and algaes are producers. They are called as such since they produce their own food by using the energy from the sun, CO2 and water to form glucose as their food.

How many grams of acetylene react if 1.10 mol of CO2 are produced?

Answers

Combustion of acetylene :

molar mass acetylene ( C₂H₂ ) = 26.0 g/mol and CO₂ = 44.0 g/mol

2 C₂H₂ + 5 O₂ ---> 4 CO₂ + 2 H₂O

2 moles C₂H₂ --------> 4 moles CO₂
? moles C₂H₂ --------> 1.10 moles CO₂

moles C₂H₂ = 1.10 * 2 / 4

moles C₂H₂ = 0.55 moles of C₂H₂

Mass acetylene:

m = n * mm

m = 0.55 * 26.0

m = 14.3 g

hope this helps!

If the solution process is endothermic, then an increase in temperature usually results in:an increase in solubility

a decrease in solubility

no change in the solubility

a slower reaction

Answers

If the solution process is endothermic, then an increase in temperature usually results in an increase in solubility. Their heat of reaction is usually positive. The rest of the choices do not answer the question above.

Answer:

solubility increases

Explanation:

Ernest Rutherford's discovery led to the understanding that atoms consist mostly of empty space with

Answers

Answer: With a positively charged nucleus.

Explanation:

Which statement regarding significant figures is false? a. Zeros can be significant
b. When multiplying, the answer is determined by the number of significant figures
c. When adding, the answer is determined by the number of decimal places
d. When dividing, the answer is determined by the number of decimal places
e. The number 50,004 has five significant figures

Answers

D is incorrect. When dividing, the answer is determined by the number of significant figures.

Which of the following is a secondary pollutant?A) sulfur dioxide
B) radon
C) carbon monoxide
D) sulfuric acid

Answers

Final answer:

A secondary pollutant is one that is not directly emitted but rather forms when primary pollutants react in the atmosphere. Among the options provided, sulfuric acid is a secondary pollutant. Correct option is D.

Explanation:

In the context of environmental science, a secondary pollutant is a type of pollutant that is not directly emitted. Instead, secondary pollutants are formed when primary pollutants undergo chemical reactions in the atmosphere. Among the options provided, option D) sulfuric acid is a secondary pollutant. The others - sulfur dioxide, radon and carbon monoxide - are primary pollutants, as they're emitted in this form from a source.