Why do lighthouses use lenses?

Given the particle diagram:. At 101.3 kPa and 298 K, which element could this diagram represent?. 1. Rn 3. Ag. 2. Xe 4. Kr

Which probably best indicates that a compound contains an ionic bond

Which is an example of transforming potential energy to kinetic energy? Select two options. changing thermal energy to electrical energy changing chemical energy to thermal energy changing nuclear energy to radiant energy changing radiant energy to

Compare the arrangements of individual particles in solids, liquids, and has

Identify reactants and products in a chemical reaction

The agricultural practice of spraying insecticides leaves behind which pollutant in the soil? A. Chemical poison B. Excess nitrogen C. Excess salt D. Acidic compounds

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?

In a chemical equation the products appear on which side of the equation? A. Left B. Top C. Right D. Bottom

What does the shape of a protein molecule resemble?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, velocity velocity, height height, position