What's the name for when a solid changes right to a gas? What's the name for when a gas changes right into a solid?

A gold nugget has a volume of 4.35cm and a mass of 84.96g. What is its density?

Which chemical equation correctly represents the synthesis of calcium sulfite from calcium oxide and sulfur dioxide?

A large sac that stores water, salts and other materials for the cell is called a

State the law of conservation of energy. Check all that apply. Energy cannot be transferred to the environment. In an energy exchange, energy is transferred between the system and the surroundings.

How many atoms of each element are in Copper Sulfate (CuSO4) ? Name the elements and the number of atoms for each element.

A sample of three mixed gases is at 632.0 mmhg. if the partial pressure of co2 is 124.3 mmhg and the partial pressure of n2 is 461.9 mmhg, what is the partial pressure of o2?

How do the products and reactants of a chemical change compare? The mass of the products is greater than the mass of the reactants because energy is taken in by the reaction.

All the following are characteristic properties of phosphorus. Which one is a chemical property? (a) When exposed to air, white phos - phorus will burn spontaneously, but red phosphorus will not. (b) Red phosphorus and white phos - phorus are solids.

What are the monomers of proteins called

What type of fermentation occurs in yeast?