Element X reacts with chlorine to form an ionic compound that has a formula of XCl2. To which group could element X belong? (1) Group 1 (2) Group 2 (3) Group 13 (4) Group 15

How many grams are in 5 lbs

Explain the difference between a solar and a lunar eclipse.

How does large change in temperature or pH affect proteins? (a) They eliminate all of their essential amino acids (b) They lose their acid sequence (c) They come apart or lose their shape (d) They change their amino acids into fatty acids

Use your trendline equation to determine the gas pressure at 200 K and 400 K. (notice the temperature units) How many times greater is the pressure at 400 K in comparison to 200 K? Is this what you'd expect? Why?

Does an iron nail follow the law of conservation of mass?

True or false during decomposition nitrogen gas is changed into nitrogen compounds

Which of the following is a suggested practice to invite families to participate in decision-making and goal-setting for their child? A. Advocacy events B. Take-home backpacks C. Family/teacher conference D. Weekly newsletters

TRUE OR FALSE A stable mixture of two or more mixable substances is called an emulsion

A chemical engineer is developing a process for producing a new chemical. One step in the process involves allowing a solution of potassium hydroxide to react with a solid. Which action would most likely increase the reaction rate for this step?

Determine which elements are balanced and unbalanced for each chemical equation below when every compound is given a coefficient of one.