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3 years ago

What are ionic compounds typically composed of?

Chemistry

2 answers:

Iteru [2.4K]3 years ago

6 0

Answer and explanation:

Ionic compounds are formed by elements with a considerable electronegativity difference. They are typically composed by an element of groups IA or IIA of the Periodic Table (with lower electronegativity, so it tends to lose electrons) and a other element of groups VIA or VIIA (with higher electronegativity, thus it tends to gain electrons). For example, KCl is formed by K (group IA), which loses one electron and forms the cation K⁺, and Cl (group VIIA) which gains the electron and forms the anion Cl⁻.

Mashcka [7]3 years ago

4 0

<span> </span><span>Ionic compounds are compound that contains ions held together by ionic bonds. They are made up of particles that are arranged in a repeating pattern. Ions are said to be packed in a regular crystalline structures in an arrangement with the least energy.</span>

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If sufficient acid is used to react completely

Juli2301 [7.4K]

Solution,

Mass of Mg - 21gm

molar mass of Mg - 24gm

moles = Given mass/ Molar mass

moles = 21/24 = 0.875

1 mole of Mg produce 1 mole of H2 gas

so 0.875 mole of Mg will produce 0.875 moles of H2 gas

One mole of H2 gas = 22.4 litre

0.875 mole of H2 gas = 0.875×22.4

0.875 mole of H2 gas = 19.60 litre

So the nearest ANSWER is Option four 19.37 litre.

3 0

2 years ago

Solid NH4HS is introduced into an evacuated flask at 24 ∘C. The following reaction takes place: NH4HS(s)⇌NH3(g)+H2S(g) At equili

Ivanshal [37]

Answer:

0.09425

Explanation:

The reactant is in solid phase and therefore has zero partial pressure.

The products have the same mole ratio (1:1) and will have the same partial pressure = 1/2 × 0.614 atm = 0.307 atm

Kp = (NH3)(H2S) = 0.09425

4 0

3 years ago

Explain in your own words the process using the following key words: carbon-di-oxide, water, sugar, oxygen, thylakoid, chloropla

AleksAgata [21]

Answer:

The Photosynthesis process

Explanation:

Plants, algae, and some other organisms can transform the sunlight energy into chemical energy. The photosynthesis process occur thanks to the chloroplasts. The chloroplast is an organelle found in all green plants. Inside of the chloroplast you can find the thylakoids which are arranged in stacks named grana, they have membranes with chloropyll a photosynthetic pigment, also you can find the photosystems, they are functional and structural units of protein complexes. The thylakoids capture the light and allow the reactions to transform CO2. The set of reactions that occurs in the chloroplasts are known as the Calvin cycle.

The general equation of photosynthesis is:

$6 CO_{2} + 6 H_{2} O + Energy -> C_{6} H_{12} 12O_{6} + 6 O_{2}$

6 CO2 + 6 H2O + Energy -> C6H12O6 + 6 O2

Carbon Dioxide + water + Light -> Glucose (sugar) + Oxygen

After, this glucose is transformed into pyruvate, and it allowed the release of denosine triphosphate (ATP) by cellular respiration. The ATP is an organic chemical that is requires for the cell to perform any process (any kind or work).

5 0

3 years ago

AL(OH)3+ HCI—> ALCL3 +H2O

UkoKoshka [18]

Answer:

i dont know what you're asking here. But if you're asking what it is then:

Explanation:

Aluminum Hydroxide + Hydrogen Chloride = Aluminum Chloride + Water

Al and Oh3: Aluminum Hydroxide

H and Cl: Hydrogen Chloride

Al and Cl3: Aluminum Chloride

H2O: water

btw the first letter of every element should be capitalized. While the second and theird are lowercased.

4 0

3 years ago

Describe what happens in the cell before the chemical reaction.

Zina [86]

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Answer:

Chemical reactions that take place inside living things are called biochemical reactions. The sum of all the biochemical reactions in an organism is referred to as metabolism. Metabolism includes both exothermic (heat-releasing) chemical reactions and endothermic (heat-absorbing) chemical reactions.

___________________________________________________________

6 0

3 years ago