Determine the volume of a marble with a density of 0.380 g/mL that is placed into a graduated cylinder filled with 45.0 mL of water and causes the water level to rise to 61.5 mL.
a. 6.27 mL
b. 16.5 mL
c. 61.5 mL
d. 101.5 mL

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

What is the atomic number of an atom that has 6 protons

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.