Answer:
0.67 mole/litre
Explanation:
the molarity equall no. of moles ÷ volume of sol.
Answer:
the velocity is 25 m/s
Explanation:
The computation of the velocity is shown below:
As we know that
Magnitude of Momentum = (mass) × (speed)
75 kg. m/s = 3 kg × speed
So, the speed is
= 75 ÷ 3
= 25 m/s
hence, the velocity is 25 m/s
For the first one it’s 69 just count the little lines from the side.
Lithium atomic number = 3
Li atom has 3 protons,3 electrons.Then it has no charge.
So the charge of Li atom here is zero.
<u>Option b: 0 is the right answer.</u>
Answer: products; reactants
Explanation: as the endothermic reactions are tye one which absorbs energy
