A train travels 74 kilometers in 3 hours, and then 73 kilometers in 2 hours. What is its average speed? km/hr

Write an equation that shows the formation of the iodide ion from a neutral iodine atom.

Which of the following is an example of chemical weathering? A. Frost wedging B. Animal activity C. Oxidation D. Abrasion

Which of the statements is true about chemical reaction rates the reaction rates can change the reaction rates are always constant the reaction rates cannot increase the reaction rates cannot decrease

Name the following Cr (SO4) 2

Oxidation is the gain of electrons. Oxidation is the gain of electrons.

What is the difference between the electronegativity values of sodium and bromine?

Which of the following elements is the most stable element? argon, manganese, phosphorus, robidium

List results of Chemical Reactions.

When you measure something in meters cubed, you are measuring

Low density: low pressure: high density Is which. evaporation? water vapor? condensation / liquid water