- Complete the following for the compound potassium chromate.
formula = K2CrO4
| atom | number in formula |
| potassium | |
| chromium | |
| oxygen |
Complete the table below for calculating the formula weightof the ionic compound magnesium chloride, MgCl2.
| Symbol | Atomic Weight | Number of ions | Weight of Ions | ||||
| Cation | Mg2+ | amu | = | amu | |||
| Anion | Cl– | amu | = | amu |
Formula Weight magnesium chloride = amu
- Complete the table below for calculating the molecular weightof the compound dinitrogen monoxide, N2O.
| Atom | Atomic Weight | # Atoms | Weight in compound | |||
| N | amu/atom | atoms | = | amu | ||
| O | amu/atom | atoms | = | amu |
molecular weight dinitrogen monoxide = amu
- A. How many molesof sulfur hexafluoride, SF6, are present in 4.95 grams of this compound?
moles
- How many gramsof sulfur hexafluoride are present in 17 moles of this compound?
grams
10.
- 12.
True or false
The number of C atoms in the reactants is greater than the number in the products. _______ true false
The number of O atoms in the reactants is greater than the number in the products. _______ true false
The illustration represents a valid chemical transformation. True or false
14.
15.
16.
17.
- When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are:
NO(g) + H2(g) N2 (g) + H2O (l)
- When the following molecular equation is balanced using the smallest possible integer coefficients, the values of these coefficients are:
SO2(g) + O2(g) SO3 (g)
20.