Which of the following elements is most likely to have an oxidation state of + 2

Which of the following gases would diffuse the fastest? CH4 CCl4 O2 H2

What are the properties, and occurrence for proteins?

24 Select all the correct answers. Imagine a car as a model that represents the human body, with its parts performing various functions similar to human body systems.

A Na2CO3 standard solution is prepared by transferring 2.4817 g of primary standard-grade sodium carbonate (fw = 106 g/mol) to a 250-ml volumetric flask. Dissolving the sample in - 100 mL distilled water and diluted to the mark. A 25.

If one penny weighs 3.16 g, what would be the dollar value of 1 metric ton of pennies? (knowing that 1 metric ton = 1000 kg)

How many bromine atoms are present in 39.9 g of CH2Br2

Chemists use activity series to determine whether which type of reaction will occur?

1. Does the temperature rise or drop when you mix vinegar and baking soda. 2. Does the temperature rise or fall when you mix baking soda and water.

Use the balanced equation from number four above to determine the limiting reactant if we had a mixture of 5.0 moles of Fe and 4.0 moles of O2.

Using the kinetic theory what happens to oxygen particles as they are cooled