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3 years ago

How does H2So4 break up to h+ & hso4 - ?

1 answer:

4 0

H2So4 is a strong acid and a strong electrolyte which means that when this dissociates in water, the dissociation process is complete. The first dissociation is

H2 SO4 = H + HSO4-

This can further release H+ and dissociate SO4- instead already

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Science 9- Bohr models worksheet

icang [17]

Answer:

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4 years ago

An ecologist counts 75 cardinals in an area measuring 15 square kilometers. What is the population density of the cardinals?

Rom4ik [11]

Answer:

Explanation:

We know that,

number of count of cardinals = 75; and

measured area = 15 square kilometers.

To find the population density of the cardinals in an area of 15 square kilometers, we need to divide the number of cardinals by the given unit area:

Population density of cardinals = 75 / 15 = 5

Therefore, the population density of cardinals in an area measuring 15 square kilometers is 5.

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3 years ago

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What is the molarity of a solution which has a volume of 3 litres and contains 5.1 moles of Br2?

katrin [286]

Answer:

The molarity of the solution is 1.7 $\frac{moles}{liter}$ .

Explanation:

Molarity (M) or Molar Concentration is the number of moles of solute that are dissolved in a certain volume.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

$Molarity=\frac{moles of solute}{volume of the solute}$

Molarity is expressed in units $\frac{moles}{liter}$ .

In this case, you know:

moles of solute= 5.1
volume= 3 L

Replacing:

$Molarity=\frac{5.1 moles}{3 L}$

Solving:

Molarity= 1.7 $\frac{moles}{liter}$

The molarity of the solution is 1.7 $\frac{moles}{liter}$ .

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3 years ago

What percentage of the atmosphere is carbon dioxide?.

stellarik [79]

Answer:

Explanation:

the answer is 4% , hope this help

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2 years ago

Which can be changed when balancing a chemical equation, the coefficient or the subscripts? Why?

Nina [5.8K]

Coefficients need to be changed while balancing a chemical reaction beacuse subscript show how the molecule exists in nature

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4 years ago

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