What is the oxidation number for Al in Al₂O₃?

What is the correct name for S^-2 ion? * a. Sulfite ion b. Sulfide ion c. Sulfate ion d. Sulfur ion 2. Gallium is a Group 3A metal. Which ion does Ga typically form? * a. Ga^-3 b. Ga^+3 c. Ga^-5 d. Ga^+5

Which is likely to have the strongest metallic bonds A. Magnesium B. iron C. lithium D. potassium

Choose all the answers that apply. Which of the following usually indicates a chemical reaction? gas bubbles color change increase in temperature decrease in temperature release of light energy

A solution contains. 36 g sodium hydroxide in 500 ml what is the ph

Which statement describes potential energy? energy of motion stored energy energy due to heat used energy

How does chemical change affect the composition of matter

When the equation Fe+S - -> Fe2S3 is balanced, what is the coefficient for sulfur?

Where is the energy in a glucose molecule stored

In this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.34 moles of Mg react with 3.56 moles of I₂, and 1.76 moles of MgI₂ form, what is the percent yield?

Using the Acceleration Equation Try it A cyclist going downhill is accelerating at 1.2 m/s2. If the final velocity of the cyclist is 16 m/s is the cyclist's initial velocity? o oo 0 4 m/s O 12 m/s O 18 m/s O 20 m/s