Which of the following causes a chemical change?

A. moving B. shattering C. burning D. melting

How many electrons do two atoms in a double covalent bond share?

How much work must be done on a 10-kg bicycle to increase its speed from 5 m/s to 10 m/s?

Carla has 45$. Pineapples cost $5 each

What does it mean to standardize the naoh solution why can the molarity of the naoh solution not be determined accurately?

Slaked lime (Ca (OH) 2) is formed from quicklime (CaO) by the addition of water. What mass of slaked lime can be produced from a mixture of 24.4g of CAO and 12.3g of H2O CaO (s) + H2O (l) = Ca (OH) 2 (s)

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number each type of atom in the compound. B) The subscripts represent the relative mass of each type of atom in the compound.

The lowest possible concentration of free hydrogen ions is represented by a ph value of

Diseases that are inherited are caused by

Why do many metal ions produce acidic solutions when dissolved in water?

Which property of potential energy distinguishes it from kinetic energy? a. mass b. position c. force d. work and power