which of the following steps of the scientific method involves stating a relationship but not proposing an explanation for the relationship? a) hypothesis b) scientific law c) theory d) observation

Using a balanced chemical reaction and a periodic table, which of the following is not possible to calculate?

What mass of water must be added to 5g of nacl to make 5% mass persentage of the solution?

Since no electromagnetic radiation escapes from astronomers locate them by looking for x-rays from gas accelerating toward them

How can a solvent be separated from a solute by distillation?

What kind of wave can humans see

Which of the following is a part of a land based carbon cycle? coral reefs Crab shells Trees Whales

What is common of volcanoes that have the most violent eruptions? A. They feature magma with very high silica content. B. They are shield volcanoes. C. They feature magma with low viscosity. D. They have no magma, but have much lava.

Why is nitrogen fixation such an important step in the nitrogen cycle? Question 7 options: Bacteria convert the fixed nitrogen back into N2. Soil nitrogen is different. Decomposers need to use NH4+. Plants can't use nitrogen in the form of N2.

At 400 K, the rate of decomposition of a gaseous compound initially at a pressure of 12.6 kPa, was 9.71 Pa s-1 when 10.0 per cent had reacted and 7.67 Pa s-1 when 20.0 percent had reacted. Determine the order of the reaction.

What particles are used to form bonds