Answer:
a light ray will always A light ray will always reflect away from a surface at an angle equal to the angle at which it struck the surface
Explanation:
it sound more formal and just plainly better
Solids have least energetic molecules because they are tightly packed.
Bronchodilators <span>are prophylactic agents used to treat bronchoconstriction.</span>
Answer: false 100
Explanation:
if this is the true or false test here
The law of conservation of mass states that mass is neither created nor destroyed. Since we have 2 g/mol of A and 3 g/mol of B then AB should be equal to the sum of their molar mass that is
2 g/mol + 3 g/mol = 5 g/mol AB
for the case of A2B3
A2 = 2 * 2 = 4 g/mol
B3 = 3 * 3 = 9 g/mol
therefore A2B3 = 13 g/mol
