If a person burns 2171 Cal each day, how much energy (kJ) does she burn in 2 days?

What subscripts are needed to complete the formula unit Li_N_? 1,1 3,1 1,3 3,3

What is the main distinction between ionic and covalent bonding?

A solution is prepared by dissolving 38.6 g sucrose (C12H22O11) in 495 g of water. Determine the mole fraction of sucrose if the final volume of the solution is 508 mL.

All of the following statements are correct except The conversion of compounds into elements is a chemical change. The conversion of sugar into carbon and water is a chemical change. The conversion of elements into compounds is a chemical change.

These are the types of attractions found between molecules. Their strength determines the state of the substance at room temperature

Which type of substance can conduct electricity in the liquid phase but not in the solid phase? metallic element molecular compound nonmetallic element ionic compound

Differentiate between the significance of the coefficients in a balanced chemical equation

Why are nonnative species a threat to biodiversity? Why are nonnative species a threat to biodiversity? A. They often use up resources that other organisms need. B. They are not able to successfully breed in the wild. C.

What is the pressure inside a tank when it contains 87.3 moles of Helium if it holds 52.0 miles at 9.63 atm

Which statement describe how the bond between two oxygen bond atoms is formed?