In part a, we saw that the theoretical yield of aluminum oxide is 1.40 mol. calculate the percent yield if the actual yield of aluminum oxide is 0.938 mol.

How many bonded pairs of electrons are there in the molecule NOCl? A) 2 B) 3 C) 4 D) 5

Determine the number of significant figures for each. a) 65.74 b) 60.009 c) 66_ d) 65.750

Considering only specific heat, would be the most ideal for use in cookware. Aluminum Copper Iron Lead

The elements in groups 3-12 are known as: A. The transition elements. B. The halogens. C. The noble gases. D. The alkali earth metals.

Which of the following shows three elements in order of decreasing electronegativity? A) Br, Cl, F B) F, O, N C) Se, S, O D) C, N, O

Which describes a force in an unstable nucleus? A. The strong nuclear force is greater than the electrostatic force. B. The electrostatic force is greater than the weak nuclear force. C.

1. How are Energy and Power related? 2. What are the two basic types of Energy? How are they similar? How are they different? 3. Describe the difference between Gravitational Potential Energy and Elastic Potential Energy?

At what temperature does water evaporate?

What happens to a stream when it is acidified?

Which energy changes are associated with a liquid freezing?