Which element in Group 15 has the strongest metallic character

In preparing students to write a chemical equation we often use analogies. Let's write an equation for the construction of a car with just 2 door. We'll use doors, body, interior, tires how to write it?

What does this motion cause on the surface of the earth (rotation)

Which of the following correctly compares UV rays and x-rays? A) X-rays have the same wavelength as UV rays. B) UV rays have the same energy as X-rays. C) X-rays have a higher frequency. D) UV rays have lower energy.

2. What is the difference between a formula unit for an ionic compound and a molecular formula for a molecule?

Which produces barium-137 when it undergoes gamma decay? A. Cesium-137 B. Cesium-138 C. Barium-137 D. Barium-138

How are natural polymers and synthetic polymers similar? A) Both are made up of phosphates and organic bases B) Both serve important roles in producing amino acids C) Both are made up of monomers that are linked by covalent bonds

How can the solubility of a solution be increased? By increasing the temperature. By decreasing the temperature. By increasing the amount of solvent added. By decreasing the amount of solvent added.

Read the scenario. Ammonia is obtained from a reaction between nitrogen and hydrogen gases. The mole ratio between hydrogen gas and nitrogen gas is 3 to 1, and the mole ratio between ammonia and hydrogen gases is 2 to 3.

Transmutation is the process of transforming one element into another through nuclear reactions. What will be the nuclide produced when Cf-249 is bombarded with C-12? Four neutrons are also produced by the reaction.

State the formula for density in words and mathematical symbols.