State three reason why do you think air is a mixture and water a compound?

Which of the following is true for all chemical reactions? The total mass of the reactants increases. The total mass of the reactants equals the total mass of the products.

Elements from which two groups in the periodic table would most likely combine with each other to form an ionic compound?

List 3 elements that were named for famous scientists

Given the following balanced reaction of hydrochloric acid and oxygen gas forming chlorine gas and water, how many grams of hydrochloric acid will be needed to form 335 grams of chlorine gas, assuming there is excess oxygen present?

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps

What is the source for georthermal energy

What senses will we use only with permission from a teacher or adult in Physical Science Labs?

Where is chemistry used?

How is radiation different from convention and conduction?

What is a mutual attraction between the nuclei and electrons in two different atoms called? A) a chemical bond B) a compound C) a cation D) a anion