A+ b → c + d

if there are 4 grams of product produced by the chemical reaction, how many grams of reactant were consumed?
a) 0 grams
b) 1 gram
c) 2 grams
d) 4 grams

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

What’s #16 asking me and how do i solve it?