Chemical or molecular formulas? Symbols from the periodic table are used to show which atoms are present in a molecule and subscripts show the number of atoms and of each type in the molecule.
Answer:
to explore the Kupier Belt
Explanation:
just finished the test
Answer:
0.337 dm³
Explanation:
M(K2CO3) = 138.2 g/mol
1) 11.7 g * (1 mol/138.2 g) =0.08466 mol
2) 0.08466 mol * (1 dm³/0.25 mol) = 0.3386 dm³ ≈ 0.337 dm³
Answer:
Density, 
Explanation:
Given that,
Mass of gold is 38.6 g
Volume, V = 2 cm³
We need to find the density of gold cube. The density of an object is defined as how much mass it has divided by its volume. So,

So, the density of the cube of gold is
.