Assume the mass of the star is 60. g. Calculate the density. Use correct number of sig figs. A 0.7 g/mL
B 4 g/mL
C 0.67 g/ml
D 4.0 g/ml
answer ASAP

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?

How many moles are contained in 5.6 l of h2 at stp