C4H10 is an alkane (propane to be precise)

The relative formula mass of a molecule of propane is

(12x4) + (1x10) = 58

because a carbon atom has an atomic weight of 12 and a hydrogen atom has an atomic weight of 1.

8 0

2 years ago

1. At 7 a.m., the science classroom had a temperature of 68°F. By 3 p.m., the temperature had

andrew11 [14]

A because chem is so cool and when you do that it equals the correct answer

8 0

3 years ago

Which of the following shows the energy transformation that

const2013 [10]

Answer: either B, or D

Explanation:

because one of those are the answer

7 0

3 years ago

Read 2 more answers

A susbtance has an empirical formula of CrO2 and a molecular weight of 168 g/mol. determine the molecualr formula for this subst

Sunny_sXe [5.5K]

Answer:

$Cr_{2} O_{4}$

Explanation:

$\frac{molecular weight}{molar mass}$ = $\frac{168}{83.99}$ = 2.00

$CrO_{2}$ x 2 = $Cr_{2} O_{4}$

3 0

2 years ago