I believe the answer would be Neutrons
Answer:
MOLARITY = 0.9554 mol/dm3
Explanation:
525 grams of SnF2 in 3.50 L of wate
To obtain the molarity, calculate the concentration in g/dm3 and then concentration in mol/dm3
Concentration in g/dm3 = 525 g/ 3.50 L
= 525g/ 3.50 dm3
= 150g/dm3 of SnF4
Concnetration in mol/dm3
concentration in mol/dm3 = concentration in g/dm3 / Relative molecular mass of SnF2
RMM of SnF2 = ( 119 + 19*2) = 157 g/mol
= 150g/dm3 / 157g/mol
= 0.9554 mol/dm3 of solution.
The molarity of the solution is therefore 0.9554mol/dm3
Energy, in a form of gamma rays, is <span>released when an electron and its antiparticle (positron) annihilate each other. </span>
Answer:
B. False
Explanation:
Solution -
A solution is referred to be a uniform mixture of various components , where the components are classified as solute and solvent .
The components can easily be segregated on the basics of the amount of the component , i.e. ,
- The component with higher concentration is referred to as the solvent.
And ,
- The component with lower concentration is referred to as the solute .
For example ,
In the solution of sugar and water , where 1 tablespoon of sugar is dissolved in 100 mL of water ,
- the concentration of sugar is less , and hence , is referred to as the solute ,
and ,
- the concentration of water is more , and hence, is referred to as the solvent.
Answer:
Explanation:
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To find the mass percent composition of an element, divide the mass contribution of the element by the total molecular mass. This number must then be multiplied by 100% to be expressed as a percent.