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Romashka [77]
3 years ago
13

What is the valency of element sulphur ​

Chemistry
2 answers:
weqwewe [10]3 years ago
8 0

sorry not sure wish I can help u

NISA [10]3 years ago
3 0
I am not to sure because I have not studied this
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*multiple choice*
galben [10]

1.95  or 2  is the molarity of a 45.3g sample of KNO3 (101g) dissolved in enough water to make a 0.225L solution.

The correct answer is option b

Explanation:

Data given:

mass of KNO_{3} = 45.3 grams

volume = 0.225 litre

molarity =?

atomic mass of KNO3 = 101 grams/mole

molarity is calculated by using the formula:

molarity = \frac{number of moles}{volume of the solution}

first the number of moles present in the given mass is calculated as:

number of moles = \frac{mass}{atomic mass of 1 mole}

number of moles = \frac{45.3}{101}

0.44 moles of KNO3

Putting the values in the equation of molarity:

molarity = \frac{0.44}{0.225}

molarity = 1.95

It can be taken as 2.

The molarity of the potassium nitrate solution is 2.

7 0
3 years ago
Coal and Diamond are two different form of carbon. which is denser?​
GalinKa [24]

Answer:

diamond is denser because it is more tightly packed than coal

7 0
3 years ago
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How many electrons are in Hydrogen?
KonstantinChe [14]
1. Hydrogen has 1 electron.
5 0
3 years ago
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Can anything change solutions? Be<br> specific!
trasher [3.6K]
What kind of solutions?
4 0
2 years ago
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What is the total ionic equation for the following reaction?
schepotkina [342]

Answer: Option (d) is the correct answer.

Explanation:

An equation in which electrolytes are represented in the form of ions is known as an ionic equation.

Strong electrolytes easily dissociate into their corresponding ions. Hence, they form ionic equation.

H_{2}CrO_{4} is a strong acid and Ba(OH)_{2} is a strong bases, therefore, both of them will dissociate into ions.

Thus, total ionic equation will be as follows.

2H^{+} + CrO_{4}^{-} + Ba^{2+} + 2OH^{-} \rightarrow Ba^{2+} + CrO_{4}^{-} + 2H_{2}O

5 0
3 years ago
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