Which type of bond is formed between magnesium and oxygen?

A. ionic

B. metallic

C. polar covalent

D. nonpolar covalent

Which one of the following compounds is an example of a covalent molecule? a) NaCl b) H2O c) KOH d) Al (NO3) 3

Which sentence describes energy? O A. It measures changes in the temperature of an object. B. It measures the speed at which an object is moving. O C. It measures the capacity to do work. D. It measures the amount of mass an object has.

Which element is used in light bulbs as a filament

Steps on how to obtain a pure sample of sulphur and iodine from its mixture

Barium chloride reacts with cooper (II) sulfate, to produce 0.0546 moles of barium sulfate how many moles of copper (II) sulfate was needed to produce this amount?

A) the ka for acetic acid (h3cco2h) is 1.737 * 10-5. what is the pka for this acid? b. use the pka calculated above to determine the ph at which [h3cco2h]=[h3cco2-].

Suppose you take a piece of hard wax from an unlit candle. After you roll the wax between your fingers for a while, it becomes soft. What State of matter is the softer wax? Is it possible for wax to change without changing state

Prevailing winds peru

Foods labeled "fat free" can actually contain less than 0.5 grams of fat.

Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 + H2O + energy → C6H1206 + O2 What are the products in this chemical reaction? O A. C6H1206 + energy O B. H20 + energy O C. CoH1206+02 O D.