Wich of fowllowing is not a force that would act on a skateboard rolling down a ramp

1. gravity

2. air resistance

3. rolling friction

4. statuc fraction

Methane gas (ch4), on complete combustion in air, produces: 1. co2 2. h2 3. h2o methane gas (ch4), on complete combustion in air, produces: 1. co2 2. h2 3. h2o 1 and 2 only 2 and 3 only 1 and 3 only all of 1 and 2 only none of

In naming the compound pcl5 the prefix used with the second element is

A solution contains equal amounts of ammonia and ammonium chloride, and is buffered at a ph of 9.25. which action will most strengthen the buffering capacity at this ph?

Which of these is an example of how engineers have affected society? A. Our general understanding of how cancer cells grow and spread B. The use of piers and beams to build a strong foundation for a house C.

How many grams of CO₂ can be produced from the combustion of 2.76 moles of butane according to this equation: 2 C₄H₁₀ (g) + 13 O₂ (g) → 8 CO₂ (g) + 10 H₂O (g)

A certain radioactive element has a half-life of one hour. if you start with 1.0 gram of the element at noon, how much of the radioactive element will be left at 2 p. m.? 0.50 grams 0.25 grams 0.125 grams 0.0 grams

Name two bases which react with dillute sulfuric acid to give zinc sulfate

What is the correct name for the compound nh4clo4?

What is the molality of a solution when 1.2 moles MgCl2 is stirred in 1000 grams of water?

How many elements are in one molecule of Methane? How many elements are in one molecule of Ammonia? How many elements are in one molecule of Vinyl Alcohol? How many elements are in one molecule of Ethylene?