Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged).
He can repeat his experiment multiple times, and ask a friend to repeat it as well to see if they get the same answer.
Answer:chemical formula of acetic acid is or
so, molecular mass of acetic acid = 2 × atomic mass of C + 4 × atomic mass of H + 2 × atomic mass of O
= 2 × 12 + 4 × 1 + 2 × 16
= 24 + 4 + 32
= 60g/mol
given mass of acetic acid = 22g
so, no of moles of acetic acid = given mass/molecular mass
= 22/60 ≈ 0.367
so, number of moles of acetic acid is 0.367mol
number of molecules in 0.367 mol of acetic acid = 6.022 × 10²³ × 0.367
= 2.21 × 10²³
Explanation:
The answer to your question is A <span>4.184 J</span>
Answer:
1) The problem is that you get a salty taste in our mouth when you drink orange juice after brushing our teeth.
Explanation:
