How can you tell if a compound is a solid, liquid, gas, or aqeous.

What is the formula to find Density

Which is not a compound? A. carbon dioxide gas B. oxygen gas C. water D. silicon dioxide

n the following reaction: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) A. H2 is the reducing agent and is oxidized B. HCl is reduced and is the oxidizing agent C. MgCl2 is the oxidizing agent and is reduced D. Mg is reduced and is the oxidizing agent. E.

1) What 2 resources are used up as a candle burns? 2) What has happened to the atoms in these resources? 3) Is it possible to recover these 2 resources after theyve been used?

What happens to a ionic compound when it has fully been dissolved in water?

A hot meal plate at 150 has been placed in air at room temperature. Which event would most likely take place over the next few minutes

What is the molarity of solution that contains 5.80 grams of nickel nitrate, ni (no3) 2 in 500. ml?

Hydrogen has three isotopes with mass numbers of 1, 2, and 3 and has an average atomic mass of 1.00794 amu. This information indicates that 1. equal numbers of each isotope are present 2. more isotopes have an atomic mass of 2 or 3 than of 1 3.

Describe the process of how visible light is produced

Which of the following contains both ionic and covalent bonding? CH4 NaCl NH4Cl N2O4 If the formula for a compound is represented by X2Y3 and the charge on the Y ion is - 2, what is the charge in the X ion? +1 +2 +3 +4