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2 years ago

Solutions that have more h than oh- ions are

Chemistry

2 answers:

erik [133]2 years ago

6 0

Answer:

c. acids.

Explanation:

Acids are substances that have more positive hydrogen ions (H) or protons (cations or anions) than hydroxyl ions (OH) in an aqueous solution; For this reason, they are known as “proton donors”.

In addition, acids react with bases, forming salts and water in a reaction called a "neutralization reaction".

In addition to the prevalence of hydrogen ions in their composition, acidic substances are colorless, have a strong suffocating odor, sour, acidic or bitter taste, pH below 7. low boiling point, conduct electricity in aqueous medium. and react with metals such as iron, magnesium and zinc.

mestny [16]2 years ago

5 0

They are Acids

when acids are in water they dissociate and release H+ ions into the water

while bases release OH- ions

hope that helps

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To what volume should you dilute 50.0 ml of 12 m hno3 solution to obtain a 0.100 m hno3 solution?

bearhunter [10]

Answer:

The answer is "6L"

Explanation:

Formula:

$\bold{C_1 \times V_1 = C_2 \times V_2 }\\\\V_2= \frac{C_1\times V_1}{C_2}$

Values:

$\to C_1= 12 \ m\\\to V_1= 50 \ ml\\\to C_2= 0.100 \ m\\\\\\V_2= \frac{12 \times 50 }{0.100}$

$= \frac{12 \times 50 }{0.100}\\\\= \frac{12 \times 50 \times 1000}{100}\\\\= \frac{600 \times 1000}{100}\\\\= 600 \times 10\\\\=6000 \ ml\\= 6 \ L$

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3 years ago

Entropy can be thought of as the degree of disorganization of a system.<br> TRUE<br> FALSE

Mice21 [21]

Answer:

True

Explanation:

The entropy of a system denoted by S is a thermodynamic function that increases in value when there are more ways to arrange the particles in the system. Some spontaneous chemical processes are entropy driven. An increase in entropy is said to drive the dissolution of ionic salts along with the evaporation of water are related to the spreading out of energy.

The entropy of a system can be taken as a measure of disorder of a system. In a spontaneous chemical process, the entropy of the universe is said to increase. ΔSunivu>0. Making the answer true.

7 0

2 years ago

Which of the following processes will determine the number of moles in a sample? Dividing the mass of the sample by Avogadro's n

Olenka [21]

The answer is: Dividing the number of molecules in the sample by Avogadro's number.

The Avogadro’s number is the number of atoms in 12 grams of the isotope carbon-12 (¹²C).

Na is Avogadro number or Avogadro constant (the number of particles, in this example carbon, that are contained in the amount of substance given by one mole).

The Avogadro number has value 6.022·10²³ 1/mol in the International System of Units; Na = 6.022·10²³ 1/mol.

For example:

N(Ba) = 2.62·10²³; number of atoms of barium.

n(Ba) = N(Ba) ÷ Na.

n(Ba) = 1.3·10²⁴ ÷ 6.022·10²³ 1/mol.

n(Ba) = 2.158 mol; amount of substance of barium.

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3 years ago

What is a carbohydrate?

bogdanovich [222]

Answer:

Burned Energy

Explanation:

Energy that burns

6 0

3 years ago

Read 2 more answers

Calculate the number of moles 3.16 g of KMnO4 32.33 g of K2CrO4 100 g of KHCO3

kvasek [131]

The number of moles:
3.16g of $KMnO_{4}$
1 mole of $KMnO_{4}$ - 158g.
x moles of $KMnO_{4}$ - 3.16g.
$x=\frac{1\ mole*3.16g}{158g}=\frac{3.16}{158}=0.02\ mole$

The number of moles:
32.33g of $K_{2}CrO_{4}$
1 mole of $K_{2}CrO_{4}$ - 194g.
x moles of $K_{2}CrO_{4}$ - 32.33g.
$x=\frac{1\ mole*32.33g}{194g}=\frac{32.33}{194}=0.17\ mole$

The number of moles:
100g of $KHCO_{3}$
1 mole of $KHCO_{3}$ - 100.1g.
x moles of $KHCO_{3}$ - 100g.
$x=\frac{1\ mole*100g}{100.1g}=\frac{100}{100.1}=0.999\ mole$

Greetings,
n00nst00p :)

3 0

2 years ago