Which element has both metallic and nonmetallic properties?

(1) Rb (3) Si

(2) Rn (4) Sr

What elements are present in sugars? A. Carbon, Hydrogen, Potassium, Oxygen B. Oxygen, Hydrogen, Nitrogen, Potassium C. Carbon, Oxygen, Nitrogen, Potassium D. Carbon Hydrogen, Oxygen

What law represents a balanced chemical equation

Which form of the conversion factor would you use to convert 75g to kg?

Using the ideal gas law and stoichiometry calculations, determine the amount of zinc metal needed to produce 150 ml of h2 gas at 293 k via the oxidation reaction below

Define a compound and a mixture. Explain how they are different.

How is the process of scientific inquiry and the design process similar and how they are different.

Provide an explanation at the subatomic level to explain why different colors are observed for different metal salts.

Indicate whether the following statements describe the primary, secondary, tertiary, or quaternary protein structure. (More than one can apply). A. R groups interact to form disulfide bonds or ionic bonds. B.

Equal masses (in grams) of hydrogen gas and oxygen gas are reacted to form water. Which substance is limiting? a. Oxygen gas is limiting b. Hydrogen gas is limiting. c. Water is limiting. d. Nothing is limiting. e.

Many things can cause an organism to become extinct. Here are some possible causes of extinction. Select the human causes of extinction.