Helium is a nonmetal. There are several reasons for this, it is unable to donate electrons and It has an extremely low melting point.
Answer:differentiate between two compounds i think!
Explanation: taking a test!
To balance Ca + Cl2 = CaCl2 you'll need to be sure to count all of atoms on each side of the chemical equation.
Once you know how many of each type of atom you can only change the coefficients (the numbers in front of atoms or compounds) to balance the equation for Calcium + Chlorine gas.
Answer:
0.19615 M
Explanation:
Calculation of the moles of
as:-
Mass = 10.91 g
Molar mass of
= 278.1 g/mol
The formula for the calculation of moles is shown below:
Thus,

According to the reaction shown below:-

1 mole of
is produced when 1 mole of
undergoes reaction.
0.03923 mole of
is produced when 0.03923 mole of
undergoes reaction.
Mole of
= 0.03923 mole
Volume = 200.0 mL = 0.2 L ( 1 mL = 0.001 L )
Molarity is defined as the number of moles present in one liter of the solution. It is basically the ratio of the moles of the solute to the liters of the solution.
The expression for the molarity, according to its definition is shown below as:

So,

<u>0.19615 M is the molarity of the
solution.</u>