3. explain the theory of continental drift.

Isopropyl alcohol is mixed with water to produce a solution that is 36.0 % alcohol by volume. How many milliliters of each component are present in 685 mL of this solution

A student dissolved 5.00 g of Co (NO3) 2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275. mL of a final solution.

Henry plans to monitor the change in concentration of an acid during a chemical reaction. He wants to collect data every 0.1 seconds and then to graph his data and insert it into a text document. Which pair of tools would be best for Henry to use?

9. The building blocks of proteins are

What is the enviromental problem/issue in the ecosystem?

Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?

In a short circuit as the resistance decreases what happens to the current?

Describe the characteristic of chemical structure found at the core of each steroid hormone

A molecule has one carbon-carbon double bond and four monovalent atoms or groups. how many different geometric isomers exist for this molecule?

While waiting for your car to warm up one winter morning, you notice a liquid dripping from your tailpipe. You recently learned in chemistry class that combustion reactions occur in car engines.