Give an example of a model used in science that is larger then the real object and an example of a model that is smaller than the real object

A potassium atom easily loses its valence electron. What type of bond will it form with a chlorine atom?

Which element below must be stored in oil because of its reactivity? A: Florine B: Chlorine C: Sodium D: Gold

Saline solutions (nacl in water) used to deliver intravenous drugs are 0.89% (w/v). what mass of nacl is found in 200 ml of such a solution?

Use the periodic table to classify each of the elements below. cadmium (Cd): vanadium (V): xenon (Xe): jodine (1): potassium (K): strontium (Sr) DONE

Which statement best explains the octet rule?

Complete the following analogy. Homogeneous is to soluble particles as heterogeneous is to A. solute particles. B. solvent particles. C. insoluble particles.

Water vapor will condense, turn into a liquid, first on the outside surface of which glass

How many moles of oxygen are needed to make 6.50 moles of magnesium oxide?

Which of the following happens during a chemical change? Check all of the boxes that apply. One atom or more changes into atoms of another element. New substances with different properties are formed. Solids, liquids, or gases may form.

What material was added to powdered rock during tuttle and bowen's experiments?