Which barium salt is insoluble in water?A) BaCO3. B) BaCl2
C) Ba(ClO4)2. D) Ba(NO3)2

Answers

Answer 1

Answer:

$\boxed{{\text{A) BaC}}{{\text{O}}_{\text{3}}}}$ is insoluble in water.

Further Explanation:

Solubility rules

These help in predicting whether the given compound is soluble or insoluble in nature. Some of the solubility rules are as follows:

1. Group 1A compounds are soluble in nature.

2. All the common compounds of ammonium ion and all acetates, chlorides, nitrates, bromides, iodides, and perchlorates are soluble in nature. But the ions whose chlorides, bromides, and iodides are not soluble are ${\text{A}}{{\text{g}}^ + }$ , ${\text{P}}{{\text{b}}^(2 + )}$ , ${\text{C}}{{\text{u}}^ + }$ and ${\text{Hg}}_2^(2 + )$ .

3. All common fluorides, except for ${\text{Pb}}{{\text{F}}_{\text{2}}}$ and group 2A fluorides are soluble. Also, all sulfates except ${\text{CaS}}{{\text{O}}_{\text{4}}}$ , ${\text{SrS}}{{\text{O}}_{\text{4}}}$ , ${\text{BaS}}{{\text{O}}_{\text{4}}}$ , ${\text{A}}{{\text{g}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}$ and ${\text{PbS}}{{\text{O}}_{\text{4}}}$ are soluble.

4. All common metal hydroxides except ${\text{Ca}}{\left( {{\text{OH}}} \right)_{\text{2}}}$ , ${\text{Sr}}{\left( {{\text{OH}}} \right)_{\text{2}}}$ , ${\text{Ba}}{\left( {{\text{OH}}} \right)_{\text{2}}}$ and hydroxides of group 1A and that of transition metals are insoluble in nature.

5. All carbonates are insoluble in nature, except for sodium, potassium and ammonium.

6. Salts having ions like $\text{Cl}^-$ , $\text{Br}^-$ or $\text{I}^-$ are generally soluble except those of $\text{Ag}^+$ , $\text{Pb}^(2+)$ and ${\left( {{\text{H}}{{\text{g}}_2}} \right)^{{\text{2 + }}}}$ .

7. Group 1A and group 2A perchlorates are soluble in nature.

8. All sulfates of metals are soluble, except for lead, mercury (I), barium, and calcium sulfates.

9. The salts having nitrate ions are soluble in nature.

According to the solubility rules, only carbonates of sodium, potassium and ammonium are soluble in nature. So barium carbonate $\left( {{\text{BaC}}{{\text{O}}_{\text{3}}}} \right)$ is insoluble in nature. But chlorides, nitrates and perchlorates of barium are soluble in water. Therefore option A is the correct answer.

Learn more:

Identify the precipitate in the reaction: brainly.com/question/8896163
What type of reaction occurs by mixing barium sulfide and sulfuric acid? brainly.com/question/5464325

Answer details:

Grade: Senior School

Chapter: Chemical reaction and equation

Subject: Chemistry

Keywords: barium, water, insoluble, solubility rules, soluble, insoluble, water, BaCO3.

Answer 2

Answer:

BaCO₃ is generally considered insoluble in water. Carbonates are often insoluble, except for some alkali metals and ammonium carbonates. Therefore, option A is correct.

The solubility of salt depends on its nature and the interactions between its ions and water molecules. In this case, determine the solubility of each salt by considering the common solubility rules.

BaCl₂ is soluble in water. Chlorides (Cl-) are mostly soluble except for a few exceptions, such as silver chloride, lead chloride, and mercury(I) chloride.

Ba(ClO₄)₂ is soluble in water. Perchlorates (ClO4-) are typically soluble.

Ba(NO₃)₂ is soluble in water. Nitrates (NO3-) are mostly soluble.

Based on the solubility rules, the salt that is insoluble in water is BaCO₃ (barium carbonate).

To learn more about the solubility, follow the link:

brainly.com/question/28170449

#SPJ6

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Answers

Answer:

Explanation:

The saturation index for a pool measures the balance between the acid level and the amount of minerals in pool water. Balanced water has an index value of 0. Water is highly corrosive or highly scale forming if the absolute deviation of the index value from 0 is greater than 0.5. Find the index values for which pool water is highly corrosive or highly scale forming.

Answers

Answer: The water is highly corrosive when the saturation index < - 0.5 and

> 0.5

Explanation:

If the saturation index for a pool measures the balance between the acid level and the amount of minerals in pool water. Considering its balanced water has an index value of 0.

The water is highly corrosive when the saturation index < - 0.5 and

> 0.5

The attachment below shows the calculations.

Gastric juice in the stomach contains pepsin and sulfuric acid.

TrueFalse

Answers

False, pepsin and hydrochloric acid

Answer:

False

Explanation:

it contains pepsin and hydrochloric acid

Which compound is an example of a binary ionic compound?Question 6 options:

H2O

H2SO4

MgF2

SF6

Answers

C, Since binary ionic compound is only of 2 elements. Mg is ionic and so i F so thats it. H20 is covalent B is more than 1 element, D looks dodgy, nah its dat ionic compunds wouldnt form big ones like SF (6)

C is the correct answer.

yes, the right answer is C. MgF2

Which of these statements is true? A.
Some molecules may contain no atoms.

B.
Some elements found in nature exist as molecules.

C.
Some compounds include only one type of element.

D.
Some atoms are made of two or more different elements. Which of these statements is true?

A.
Some molecules may contain no atoms.

B.
Some elements found in nature exist as molecules.

C.
Some compounds include only one type of element.

D.
Some atoms are made of two or more different elements.

Answers

Pretty sure it's B. If not, then it's C.

Why wasn't oxidation type chemical weathering common more than 2 billion years ago?

Answers

Answer:

Due to deficiency of Oxygen in atmosphere.

Explanation:

Oxidation is defined in two ways, 1) The addition of Oxygen and Removal of Hydrogen 2) The removal of electrons.

We will discuss the first definition for this question. The addition of oxygen to various compounds results in the oxidation of that compound.

Example: Oxidation of Methane;

CH₄ + 2 O₂ → CO₂ + 2 H₂O

In this example oxygen is added to methane and hydrogen is being removed from methane.

Oxidation type chemical weathering common more than 2 billion years ago because of less amount of Oxygen in atmosphere and the oxygen which was produced by plants reacted with different metals like Iron forming precipitates which precipitated to the bottom of oceans.

Final answer:

Oxidation type chemical weathering was not common more than 2 billion years ago due to the scarcity of free oxygen in the Earth's atmosphere. The early atmosphere was anoxic, and it was only with the evolution of cyanobacteria that oxygen began to accumulate. This oxygen increase allowed for the evolution of more complex life forms and facilitated oxidation type chemical weathering.

Explanation:

The main reason why oxidation type chemical weathering wasn't common more than 2 billion years ago is the scarcity of free oxygen in the Earth's atmosphere during that period. Studies of the chemistry of ancient rocks show that despite the presence of plants releasing oxygen through photosynthesis, Earth's atmosphere and oceans lacked abundant free oxygen until about 2 billion years ago. The oxygen gas was rapidly removed through chemical reactions with Earth's crust.

Moreover, the early atmosphere was anoxic, meaning it had no molecular oxygen. As a result, only anaerobic organisms, which can grow without oxygen, could live. It was only later with the evolution of cyanobacteria, also known as blue-green algae, that oxygen began to accumulate in the atmosphere.

This increase in atmospheric oxygen allowed the evolution of more complex life forms and the development of more efficient oxygen-utilizing processes. It also facilitated the oxidation type chemical weathering that we see today, which requires free oxygen to occur.