Question

any number as long as it's correct TY

Answer 1

Answer:

The combining capacity of an atom of an element to form chemical bond is called its valency. (2) Equal to the number of electrons required to complete eight electrons in valence shell.

...

Explanation:

please give me some thanks

make me brainlist

Answer 2

Explanation:

Step 1: write a balanced equation

1A: Write the products and reactants

H2 + O2 → H2O

1B: Balance one of the elements, in this case there is two oxygens yielding 1 oxygen so fix this with a 2 coefficient in front of water.

H2 + O2 → 2 H2O

1C: now balance the hydroge

2H2 + 02 → 2 H2O

Now you know the mole relationship of everything in the reaction.

Step 2 calculate the number of moles from the mole ratio from the balanced equation.

3.9 mole H2 * (1 O2 / 2 H2) = 1.95 mole O2

Note that the H2 cancels.