Which element with atom has the smallest mass

Will walks his dog around the block he spend an hour walking and make it 4km what is there speed

Which word best describe the motion of a falling rock? accelerating decelerating rotating vibrating

How many grams of methane gas (CH4) need to be combusted to produce 12.5 L water vapor at 301 K and 1.1 atm? Show all of the work used to solve this problem. CH4 (g) + 2O2 (g) yields CO2 (g) + 2H2O (g)

3.) Why was the crucible placed in a drying oven overnight?

Explain the relationship between the mole, particles, grams, and Liters.

Balance the following redox reaction in acidic solution. Zn (s) + MnO-4 (aq) → Zn+2 (aq) + Mn+2 (aq)

66.0g of dry ice (solid carbon dioxide)

Select all the discoveries for which ernest rutherford is credited. the emissions of radioactive elements the neutron the electron the proton

Calculate the concentration of a solution made by diluting 86.0 mL of 4.4 M HBr to a final volume of 575.0 mL. Significant figures are graded for this problem. Be sure you do not round your answers until the very end of your calculations.

Hear flows from water in one container to another. What difference between the two samples of water causes heat to flow?