Answer:
Explanation:
The mass of the products in a chemical reaction must be equal to the reactants mass. As is stablish in the mass conservation law.
First look at the elements present in the equation.
Make a list of the atoms present in each side of the equation.
Then write the quantity ( number) in which they are present:
Si 1 Si 1
O 2 O 1
H H2
F F 4
As you can see, in the product side of the equation you have 4 atoms of Fluorine F, and 2 of hydrogen H, first try to balance by adding a 4 to the reactant HF.
Now you will have to add a leading 4 in the reactants side. But now you need to balance the H and the O.
You will have the following information:
Si 1 Si 1
O 2 O 1
H 4 H2
F 4 F 4
If you add a 2 coefficient in the water you will have everything balanced
The answer is B. because it starts at Conifer Seeds and ends at Northern goshawks.
Atomic mass is the same as the grams per mole. 2.98x10²² is 0.0495 mol (2.98e22 ÷ 6.02e23). If we have 4 g/0.0495 mol, that's 80.81 g/mol, so the atomic mass is 80.81 amu. Make sense?
Answer:
I don't know plz show a picture
Iodine Strontium Silver...... ..I think.