Why is hydrogen placed with the elements in group 1a?

Which choice is characterized by being malleable? A. metaloids B. metals C. noble gases D. nonmetals

What is the mole ratio of oxygen to aluminum?

Which part of an atom determines how it will react with other atoms?

What are the seven properties used to identify a mineral

In the laboratory you are given the task of separating Ag + and Cu2 + ions in aqueous solution. For each reagent listed below indicate if it can be used to separate the ions. Type "Y" for yes or "N" for no.

A balloon containing 0.0400 mol of a gas with a volume of 500 mL was expanded to 1.00 L. Answer the questions and round answers to nearest hundredth place. Which equation should you use to find the amount of gas added?

Can quadrilateral RSTU be a parallelogram

Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and two moles of water gas (H2O).

The density of rubbing alcohol is 0.785g/mL at 25 Celsius. Calculate the mass of 15.0 mL of the rubbing alcohol.

Is the universe an isolated system?