What is the mass of 2.3 moles of aluminum (Al) ?

Matter must have two physical properties: 1. have mass, and 2.

NaBr + CaF2 → NaF + CaBr2 What coefficients are needed to balance the chemical equation? A) 1,1,1,1 B) 1,2,1,2 C) 1,2,2,1 D) 2,1,2,1

Determine the number of moles of air present in 1.35 L at 760 torr and 17.0 C. Which equation should you use?

Which of the following is the conjugate base of HPO 2? O A. H2P04 B. PO 3 C. H3PO4 O D. HAP04

Describe the cause of attraction between molecules of water

What metric unit is used to measure distance?

In the chemical formula 3NO2 the number 3 is a

W (g) + X (g) - -> Y (g) + Z (g) Gases W and X react in a closed, rigid vessel to form gases Yand Z according to the equation above. The initial pressure of W (g) is 1.20 atm and that of X (g) is 1.60 atm. No Y (g) or Z (g) isinitially present.

In this process, a piece of paper with small holes in it separates a heterogeneous mixture by letting through the small particles and keeping out the big ones. That is called as

The double bond between carbon and oxygen is similar to an alkene C-C, except that C o is: a) shorter and weaker. b) shorter and stronger c) longer and weaker. d) longer and stronger.