A balloon contains 0.5 L of air at 273 K. Its volume increases to volume of 0.75 L at constant pressure. What is the temperature of air inside the balloon?

Convert 0.0547 hectograms to ounces

What volume of oxygen (O2) gas is equal to 4.5 moles at STP?

Which scientist proposed the "plum pudding" model of the atom?

What is true of an aqueous solution that is 15.0 percent HNO3 by mass? It contains 15.0 grams of HNO3 per 1.0 liter of water. It contains 15.0 grams of HNO3 per 100 grams of solution. It contains 15.0 moles of HNO3 per 100 moles of water.

Use einstein's formula to explain the relationship between mass and energy.

1.4 Explain why it is important to support individuals to challenge information about services that may present a barrier to participation

Which describes energy changes during nuclear fission? A very large amount of energy is produced from a tremendous mass. EEUU A very large amount of energy is produced from a very small mass. G .

A 0.75mol calcium carbonate (CaCO3) pellet has what mass?

The pH of the acid in the stomach is 2. When a person has heartburn, the acid in their stomach is coming up the esophagus (lower throat) and burning the lining of the esophagus. Why would a person take an Alka Seltzer tablet for heartburn?

Calculate the photon energy (in joules) for the light emitted from the hydrogen atom if ninitial = 4 and nfinal = 2.