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3 years ago

Match the salt with the acid and base used to form it in a neutralizing reaction. K2SO4

Chemistry

2 answers:

jeyben [28]3 years ago

4 0

for K2SO4 ,

B) KOH and H2SO4

for NaBr,

A) NaOH and HBr

emmasim [6.3K]3 years ago

3 0

Answer:

KOH and H₂SO₄

Explanation:

Neutralization reaction:

It is the reaction in which acid and base react with each other and produce salt and water.

For example:

2KOH + H₂SO₄ → K₂SO₄ + 2H₂O

1. Potassium hydroxide and sulfuric acid react to produce potassium sulfate salt and water.

2. Potassium hydroxide and phosphoric acid react to produce potassium phosphate and water.

H₃PO₄ + 3KOH → K₃PO₄ + 3H₂O

3. Phosphoric acid sodium hydroxide react to produce sodium phosphate and water.

H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂O

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What is the chemical equation from table salt made from baking soda

bagirrra123 [75]

NaHCO₃ + HCl → NaCl + H₂O + CO₂

Explanation:

NaHCO₃ + HCl → NaCl + H₂O + CO₂

When Sodium bi carbonate (NaHCO₃) reacts with hydrochloric acid (HCl), it forms table salt (NaCl), water ( H₂O ) and Carbon di oxide (CO₂) gas is evolved.

Here base reacts with acid to form salt and it is the neutralization reaction.

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3 years ago

Which of the following information can be determined from this isotope: sodium 23 and why?

JulsSmile [24]

<h2>YOUR ANSWER Is number of istopes</h2>

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2 years ago

If 5.12 g of oxygen O2 gas occupies a volume of 6.21L at a certain temperature and pressure, how many grams of oxygen gas will o

ddd [48]

Answer : The mass of $O_2$ occupy 30.3 L under the same conditions will be, 24.9 grams.

Explanation :

First we have to calculate the moles of $O_2$

$\text{Moles of }O_2=\frac{\text{Given mass }O_2}{\text{Molar mass }O_2}=\frac{5.12g}{32g/mol}=0.16mol$

Now we have to calculate the moles of $O_2$ in 30.3 L by using Avogadro's law.

Avogadro's law : It is defined as the volume of gas is directly proportional to the number of moles of gas at constant pressure and temperature.

$V\propto n$

or,

$\frac{V_1}{n_1}=\frac{V_2}{n_2}$

where,

$V_1$ = initial volume of gas = 6.21 L

$V_2$ = final volume of gas = 30.3 L

$n_1$ = initial moles of gas = 0.16 mol

$n_2$ = final temperature of gas = ?

Now put all the given values in the above equation, we get:

$\frac{6.21L}{0.16mol}=\frac{30.3L}{n_2}$

$n_2=0.781mol$

Now we have to calculate the mass of $O_2$

$\text{ Mass of }O_2=\text{ Moles of }O_2\times \text{ Molar mass of }O_2$

Molar mass of $O_2$ = 32 g/mol

$\text{ Mass of }O_2=(0.781moles)\times (32g/mole)=24.9g$

Therefore, the mass of $O_2$ occupy 30.3 L under the same conditions will be, 24.9 grams.

6 0

3 years ago

One atom of an element A =6.644 *10^-23 gm. calculate the no. of gram atom in 80 kg of it.

Oksana_A [137]

Answer:

5.3152*10^-24

Explanation:

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3 years ago

What term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of ni

julia-pushkina [17]

The term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of nicotinic acid will be naicin flush.

It could also treat niacin deficiency along with high triglyceride and cholesterol levels. Additionally, it can lessen the chance of a heart attack but also slow artery narrowing.

Niacin, sometimes referred to as nicotinic acid, would be a naturally occurring vitamin $B_{3}$ found in the diet. It can raise blood lipid (fat) levels, including triglycerides and cholesterol, when used as medicine. In order to exert its effects, nicotinic acid causes the liver to produce less "bad" cholesterol and triglycerides.

Therefore, The term identifies the characteristic tingling sensations and reddening of the skin after ingesting a pharmacologic dose of nicotinic acid will be naicin flush.

To know more about nicotinic acid

brainly.com/question/13255467

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8 0

1 year ago