Answer:
Check if the equipment is in a good condition.
Check if it can cause any harmful hazards.
Check if the equipment is what you need for the experiment
Answer:
Option B
Explanation:
As Brønsted-Lowry theory states, acids are the ones that can donate protons.
When a proton is donated, it is released to become medium more acidic.
HCl is a strong acid.
HCl (l) + H₂O (l) → H₃O⁺ (aq) + Cl⁻(aq)
These always reffers to strong acid where the dissociation is 100% completed.
In a weak acid, dissociation is not 100% complete, that's why we have an equilibrium.
HA (l) + H₂O (l) ⇄ H₃O⁺ (aq) + A⁻(aq) Ka
Answer:
A mole is an amount of a substance that contains 6.022✖️10^22 atoms of that substance
Or
Gram atomic masses,gram formula masses or gram formula masses are called one mole.
Molar solution or molarity is defined as the number of miles of so lutes dissolved per dm^3 of solution
Explanation:
I hope this will help you :)
It's the rows. They are periods. (1,2,3,4,5,6,7 - the ones without the letters).