1. What is energy measured in? 2. What should you consider when choosing which food you eat each day? 3. Name some energy stores

Which of the following happens during a lunar eclipse? Select one: a. Earth casts a shadow on the moon. b. The moon casts a shadow on Earth. c. Earth stops revolving in its orbit. d. Earth starts revolving around the moon.

Round off each of the following numbers to two significant figures: (a) 0.436 (b) 9.000 (c) 27.2 (d) 135 (e) 1.497 X 10-3 (f) 0.445

Which formula represents the compound commonly known as phosphine? A) ph B) ph2 C) ph3 D) ph4

If 24.6 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 301 Kelvin and 1.01 atmospheres? Show all of the work used to solve this problem. 2Li (s) + 2H2O (l) yields 2LiOH (aq) + H2 (g)

How many non-bonding electrons does phosphorus have?

Is rust a pure substance or a mixture? <3

How should Hector use specialization to solve his problem? Based on the scenario, recommend which employee should work on which task.

What happens to the movement of water when a cell is placed in a hypotonic solution?

What are the terms that describe these values for the element oxygen 16 to 8

When metal A is placed in a solution of metal ions B2+, a reaction occurs between A and B2+, and metal ions A2 + appear in the solution. When metal B is placed in acid solution, gas bubbles form on its surface.