In two or more complete sentences explain how to balance the chemical equation,

Chemistry

2 answers:

Ghella [55]3 years ago

8 0

Answer:

simbizi

Explanation:

Evgen [1.6K]3 years ago

8 0

Answer:

the equation CH4 + O2 ? CO2 + H2O is not balanced because there are four hydrogen atoms in the reactant side of the equation and only two on the product side. for balancing this equation we add 2 withO2 in reactants and add 2 with H2O in products.

Explanation:hope i helped

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Which represents the self ionization of water at 25 degrees

gayaneshka [121]

This question comes with four answer choices:

A. H2O + H2O ⇄ 2H2 + O2

B. H2O + H2O⇄ H2O2 + H2

C. H2O + H2O ⇄ 4H+ + 2O2-

D. H2O + H2O ⇄ H3O+ + OH-

Answer: option D. H2O + H2O ⇄ H3O+ + OH-

(the +sign next to H3O is a superscript, as well as the - sing next to OH)

Explanation:

The self-ionization of water, or autodissociation, produces the two ions H3O(+) and OH(-). The presence of ions is what explain the electrical conductivity of pure water.

In this, one molecule of H2O loses a proton (H+) (deprotonates) to become a hydroxide ion, OH−. Then, he hydrogen ion, H+, immediately protonates another water molecule to form hydronium, H3O+.

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3 years ago

5. A sample of methane has a volume of 225 mL at 0.650 atm of pressure. What will the new volume be if the

Norma-Jean [14]

Answer:

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Explanation:

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3 years ago

A sheet of gold weighing 8.8 g and at a temperature of 10.5°C is placed flat on a sheet of iron weighing 19.5 g and at a tempera

timofeeve [1]

Answer:

$T = 36.393\,^{\textdegree}C$

Explanation:

The contact between the sheet of gold and the sheet of iron allows a heat transfer until thermal equilibrium is done, which means that both sheets have the same temperature:

$-Q_{iron} = Q_{gold}$

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