The density of a gas measured at 20°C is 1.78 x 10-3 g/cm3. What is the volume of 45.0 g of the gas?

a.) 2.53 x 104 g/cm3
b.) 8.01 x 10-2 g/cm3
c.) 2.62 x 10-4 g/cm3

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients

#7 how does the structure of amino acids allow them to form a polypeptide? each amino acid has an amino group and a carboxyl group. each amino acid has a hydrogen atom and a carboxyl group. each amino acid has a carboxyl group and an r group. each amino acid has an r group and a hydrogen atom.