14 Which equation represents sublimation?

(1) Hg (l) - - - > Hg (s) (3) NH3 (g) - - - >NH3 (l)

(2) H2O (s) - - - >H2O (g) (4) CH4 (l) - - - >CH4 (g)

How do you think winds affect air pollution?

Which of the following rock types form from placing other rocks under heat and pressure? A. Sedimentary rock B. Metamorphic rock C. Intrusive igneous rock D. Extrusive igneous roc

6. What is a polyatomic ion? (You should also memorize the name, formula, and charge of the polyatomic ions listed in the lecture materials)

Which process uses energy to combine inorganic molecules to synthesize organic molecules

If it takes five seconds for a sound of thunder to travel 1 mile how many miles is a person from the lightning bolt. If thunder is heard 15 seconds later after lightning

A balloon contains 0.15 moles of co2 gas. how many molecules of co2 are in the balloon?

Acids A) are generally proton donors B) produce H + ions in solution C) are electron pair acceptors D) may include all of these characteristics

3.011 x 10^23 atoms F in grams

What would you use if you needed to determine the density of an object? balance and graduated cylinder balance and scale scale and spectroscope

What are two forms of friction that oppose the motion of a moving car