Identify a chemical reagent that can be used to distinguish solid CaCl2 from CaCO3

Which cell copies its dna

An atom of Ni has 26 electrons. What is the charge of this atom?

Determine the kinds of intermolecular forces that are present in each element or compound. you may want to reference (pages 466 - 476) section 11.3 while completing this problem.

When 100 g of C6H16N2 (used in nylon) are decomposed, 62.01 g of C, 13.87 g of H, and 24.11 g of N are produced. Find the percent composition.

A homogeneous mixture of two or more substances is known as a

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.

The compound KOH is called

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?