What is the mass in grams of 5.40 moles of lithium? what is the mass in grams of 5.40 moles of lithium? 37.5 1.29 6.94 3.25 × 1024 none of the above?

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas