Dissolve the sugar. Strain the pebbles. You are left with the pepper
The solution is
(15.1 g O2) / (31.99886 g O2/mol) = 0.47189 mol O2 (8.19 g N2) / (28.01344 g N2/mol) = 0.29236 mol N2 (2.48 g H2) / (2.01588 g H2/mol) = 1.2302 mol H2
(0.47189 mol O2) + (0.29236 mol N2) + (1.2302 mol H2) = 1.99445 mol total
(0.47189 mol O2) / (1.99445 mol total) = 0.237 for O2
Answer:
3 protons
4 neutrons
3 electrons
lithium
alkali metal
Explanation:
The protons and neutrons make up the center, and the electrons and protons must be equal for it to be neutral. Lithium has an atomic number of 3, which is equal to the number of its protons. Lithium is part of the alkali metal family.
