Which is an element?

A. A carbon dioxide molecule

B. A copper pipe

C. Phosphorous and lithium joined together

D. An alloy of copper and iron

The mass of a rock sample is 25 g and its density is 5 g/cm3. What is the volume of the rock sample?

What is the rate of dissolution? how fast the solute dissolves in the solvent ted the time it takes to form a saturated solution the time it takes of 100 g of solute to dissolve in 100 g of solvent g of DONE

Write an investigative question

Give an example on how to make an acrostic poem using the word kinetic

Which statement is true for the given equation? ZnI2 + Br2 Bromine will combine with zinc iodide during the reaction. Bromine will replace iodine during the reaction. No reaction will occur. Bromine will replace zinc during the reaction.

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure.

When you light a fire place what energy transformation takes place

Correctly identify the generic formula for a synthesis reaction. a. AB + A+B b. A+B → AB c. CxHx + O2 → CO2 + H2O d. AB + C + AC + B e. AB + CD → AD + CB

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?

Nonrenewable resources are?