The metalloids that are included in group 15 are antimony and what elements?

1. N

2. P

3. As

4. Bi

DDT was a hazardous: a) insecticide b) disease c) industrial waste d) weed killer

When a substance cannot be reduced by physical or chemical means to a simpler form, it is an example of a (n): mixture molecule element compound

When 4.5 mol al react with 11.5 mol hcl, what is the limiting reactant, and how many moles of h2 can be formed?

18. What element has 81 protons in the nuclei of its atoms?

What does the Ka represent in the equation and why is it important?

When light from the sun warms the ground, the transfer of heat energy is called A) conduction. B) power. C) radiation. D) reflection.

What is alkyl hydrogen sulphate

What is the physical state of each of these materials at room temperature? a. gold b. gasoline c. oxygen d. neon e. olive oil f. sulfur g. mercury

What is one unexpected problem associated with cell phone use? A. It decreases the efficacy of your peripheral vision. B. It distracts your hearing from events on the roadway. C. It causes you to misjudge distances.

Construction crews sometimes use this reaction for welding underwater structures: Fe2O3 + 2Al → Al2O3 + 2Fe How many moles of iron (Fe) would be produced if 2.