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3 years ago

Compare and contrast acids and bases in terms of their h+ ion and oh- ion concentrations.

1 answer:

3 0

Acids mainly have H+ ions in their formulas. When ionized in water, acids yield H+ ions into the water.

Bases mainly have OH- ions in their formulas. When ionized in water, bases yield OH- ions into the water.

Based on this, we can conclude that acids have higher concentrations of H+ while bases have higher concentrations of OH-.

If a solution has equal concentrations of H+ and OH-, then this solution is said to be neutral.

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1. A chemical equation is balanced when *

lubasha [3.4K]

Answer:1 Answer. A chemical equation is balanced when the number of each kind of atom is the same on both sides of the reaction,,

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2 years ago

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can anyone help me with this and if my score is perfect i will brainlist u and follow you and please the answer must be the righ

mario62 [17]

Answer:

1.CL

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Explanation:

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3 years ago

How is sound energy produced? A. by vibrating objects B. by stationary objects C. by temperature differences D. by objects being

viva [34]

Sound energy is produced by vibrating objects.

Example: when you speak you vibrate the air molecules in the air. If you where to speak in space no “sound” would be produced since there is nothing for the vibration of your voice to travel through.

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3 years ago

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What is the mass of potassium chloride when 6.75 g of potassium reacts with an excess of chlorine gas? the balanced chemical equ

lorasvet [3.4K]

The balanced equation for the above reaction is;
2K + Cl₂ ---> 2KCl
Stoichiomtery of K to KCl is 2:2
Potassium is the limiting reactant which is fully consumed in the reaction. The amount of product formed depends on amount of limits reactant present.
Number of moles of K reacted - 6.75 g/ 39 g/mol = 0.17 mol
Therefore number of KCl moles formed - 0.17 mol
Mass of KCl formed - 0.17 mol x 74.5 g/mol = 12.67 g

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3 years ago

What mass of kcl in grams must be added to 500 ml of a 0. 15 m kcl solution to produce a 0. 40 m solution.

iren [92.7K]

91.4 grams

91.4 grams of kcl in grams must be added to 500 ml of a 0. 15 m kcl solution to produce a 0. 40 m solution.

C = mol/volume

2.45M=mol/0.5L

2.45M⋅0.5L = mol

mol = 1.225

Convert no. of moles to grams using the atomic mass of K + Cl

1.225mol * $\frac{39.1+35.5}{mol}$

mol=1.225

=1.225 mol . $\frac{74.6g}{mol}$

=1.225 . 74.6

=91.4g

therefore, 91.4 grams of kcl in grams must be added to 500 ml of a 0. 15 m kcl solution to produce a 0. 40 m solution.

What is 1 molar solution?

In order to create a 1 molar (M) solution, 1.0 Gram Molecular Weight of the chemical must be dissolved in 1 liter of water.

58.44 g make up a 1M solution of NaCl.

To learn more about molar solution visit:

brainly.com/question/10053901

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1 year ago