Answer:
3.49 g
Explanation:
The mass is the product of volume and density:
(8.96 g/cm³)(0.39 cm³) ≈ 3.49 g
The mass of a pure-copper penny would be 3.49 g.
Answer:
jobs growth is a figure measured by the Bureau of Labor Statistics (BLS) that tracks how many jobs are created in the country on a monthly basis. The figure is used as a measure of economic expansion and regarded as a litmus test for national economic health
Explanation:
Answer:
Carbon-14 naturally decays to Carbon-12
Explanation:
Answer:
balanced chemical equation is
2 SiO₂ + 3 C₂ = 2 SiC + 4 CO
Answer:
45g of NaCl x 1mole of NaCl/58.5g
= 0.769moles of Nacl
Now Looking at the equation
1mole of Nacl produces 1mole of AgCl
so
0.769mole of NaCl will produces the same Mole of AgCl(0.769)
So the Moles of AgCl produced = 0.769
Recall
Mole = Mass /Molar Mass
Mass = Mole x Molar Mass
Molar Mass of AgCl =108 + 35.5 = 143.5
Mass of Agcl = 0.769 x 143.5
=110.35g of AgCl
