The mass of a jar and lid with white marbles and black marbles is 1,500 grams. the mass of the marbles alone 1/2 the total mass of the jar, lid, and marbles. what is the difference between the mass of the jar with the marbles and the total mass of only the marbles?

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.