Who needs a higher caloric intake due to higher calorie expenditure? Person sitting on couch Person walking the dog Person playing basketball

The maximum energy available for useful work from a spontaneous reaction (A) free energy (B) lattice energy (C) kinetic energy (D) activation energy (E) ionization energy

The molar mass of CO2 is 44.01 g/mole. Choose which of the following correctly represents this relationship correctly as a conversion factor. 1 mol CO2 = 44.01 g CO2 44.01 mol CO2 = 1 g CO2 44.01 molecules CO2 = 1 g CO2 1 molecule CO2 = 44.01 g CO2

26. If a saturated solution of AgNO3 at 20°C contains 216 g AgNO3 per 100.0 g of water, what mass of water could contain 725 g of this solute at the same temperature?

A chemistry student found the density of Freon-11 (CFCl3) to be 5.58 g/L under her experimental conditions. Her measurements showed that the density of an unknown gas was 4.38 g/L under the same conditions. What is the molar mass of the unknown?

The proposed mechanism for a reaction is: Step 1: A + B X (fast) Step 2: X + C Y (slow) Step 3: Y D (fast) What is the overall reaction?

This formula equation is unbalanced. P4 (s) + Cl2 (g) PCl3 (l) Which coefficient should be placed in front of PCl3 to balance this equation? 124 6

If a gas has an initial pressure of 101kPa and a volume of 10L, then it expands to a volume of 20L what is the new pressure?

Which acid has the formula hno2? hydronitric acid hydronitrous acid nitric acid nitrous acid hydornitridic acid

How can you make clay float in water?

Molar mass of Fe2O3 = g/mol