In which group of the Periodic Table do most of the elements exhibit both positive and negative oxidation states?

What type of chemical reaction will Ca LiOH → make

cricket20 [7]

Answer:

It is not possible to determine the type of chemical reaction that will occur when Ca LiOH → without additional information. The chemical formula Ca LiOH could represent a compound, but without knowing what reactants are present and what products are being formed, it is not possible to classify the reaction. Some possible reactions that could occur involving Ca LiOH include a synthesis reaction, where Ca LiOH is formed from its constituent elements, a decomposition reaction, where Ca LiOH breaks down into its constituent elements, or a substitution reaction, where one or more atoms in Ca LiOH are replaced by other atoms.

Explanation:

3 0

1 year ago

Propenoic acid, C3H4O2, is a reactive organic liquid that is used in the manufacturing of plastics, coatings, and adhesives. An

Shkiper50 [21]

Answer:

C = 39%

H = 5.43%

Explanation:

Firstly, we calculate the number of moles of each.

For carbon, we use carbon iv oxide

Mass here = 0.636g

Number of moles of carbon iv oxide = mass of carbon iv oxide ÷ molar mass of carbon iv oxide. Molar mass = 44g/mol

Number of moles = 0.636 ÷ 44 = 0.014mole

Since 1 mole of carbon iv oxide contains 1 mole carbon, 0.014 mole of carbon iv oxide is also produced.

Mass of carbon = 0.014 × 12 = 0.173g, where 12 is the a.m.u of carbon.

For hydrogen, we use water .

Mass of water = 0.220g

No of moles of water = 0.22 ÷ 18 = 0.012 mole

1 mole of water has two moles of hydrogen, thus the amount of hydrogen produced = 0.012 × 2 = 0.024mole

Mass of hydrogen produced = 0.024 × 1 = 0.024g

The percentage composition are as follows:

Carbon = 0.173/0.442 × 100 = 39%

Hydrogen = 0.024/0.442 × 100 = 5.43%

5 0

3 years ago

Acids are and can destroy your skin and bones

sleet_krkn [62]

Answer:

This is true.

Explanation:

5 0

3 years ago

The pH of lemon juice at 298 K is found to be 2.32. What is the concentration of H3O+ ions in the solution?

Vinvika [58]

PH = -log[H₃O⁺]

[H₃O⁺] = 10^-pH
[H₃O⁺] = 10^-2,32
[H₃O⁺] =0,0047863 ≈ 4,79×10×10⁻³ mol/dm³

B) -- 4,79×10⁻³ M

7 0

3 years ago

Read 2 more answers

In tne equation below identify the bronsted lowry acid bronsted lowry base conjugate acid conjugate base

Ad libitum [116K]

Answer:

Brønsted-Lowry acid: HNO₂

Brønsted-Lowry base: NH₃

Conjugate acid: NH₄⁺

Conjugate base: NO₂⁻

Explanation:

The equation is:

$HNO_2(aq)+NH_3(aq)\rightarrow NH4^+(aq) + NO2^-(aq)$

Brønsted-Lowry acids are H⁺ donors.

Brønsted-Lowry bases are H⁺ acceptors.

Thus, on the left side, HNO₂ is the acid and NH₃ is the base.

The conjugate acids and conjugate bases are on the right side of the equation.

The conjugate acid is the spieces that is formed after a base accepts the proton; thus it is NH₄⁺. A conjugate acid contains one more H atom and one more + charge than the base that formed it.

The conjugate base is the species that is formed after the acid donates its proton; thus, NO₂⁻ is the conjugate base. A conjugate base contains one less H atom and one more - charge than the acid that formed it.

Summarizing:

Brønsted-Lowry acid: HNO₂

Brønsted-Lowry base: NH₃

Conjugate acid: NH₄⁺

Conjugate base: NO₂⁻

6 0

4 years ago