Read the chemical equation.

mg + 2hcl → mgcl2 + h2

how many moles of mgcl2 are produced from 3 moles of hcl?

0.3
0.5
1.0
1.5

1.5 mol.

Explanation:

It is clear that 1.0 mol of Mg reacts with 2.0 moles of HCl to produce 1.0 mol of  MgCl₂ and 1.0 mol of H₂.

Using cross multiplication:

2.0 moles of HCl → 1.0 mole of MgCl₂.

3.0 moles of HCl → ??? mole of MgCl₂.

∴  The no. of moles of MgCl₂ are produced from 3.0 moles of HCl = (3.0 mol)(1.0 mol) / (2.0 mol) = 1.5 mol.

no, i was listening to water by schoolboy q while and i saw this question

explenation:

water isn't wet. wetness is a description of our experience of water; what happens to us when we come into contact with water in such a way that it impinges on our state of being. we, or our possessions, 'get wet'. a less impinging sense experience of water is that it is cold or warm, while visual experience tells us that it is green or blue or muddy or fast-flowing. we learn by experience that a sensation of wetness is associated with water: 'there must be a leak/i must have sat in something.'