7. this same chemistry student has a weight of 155 lbs. what is the student's weight in
grams? (16oz=1lb, 1 oz = 28.34 g)

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.