The atomic symbol for Magnesium is Mg
The atomic symbol for Potassium is K
The atomic symbol for Iron is Fe
The atomic symbol for Lead is Pb
Yes, 50 pennies plus 50 pennies equals 100 pennies minus 50pennies equals 50 pennies.
Answer:

Explanation:
Hello!
In this case for the solution you are given, we first use the mass to compute the moles of CuNO3:

Next, knowing that the molarity has units of moles over liters, we can solve for volume as follows:

By plugging in the moles and molarity, we obtain:

Which in mL is:

Best regards!
So they can tell what exact species it is.
This is what I got. Hope it helps :)