What are 2 key characteristics of a good scientific investigation

phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of nuetrons must be?

What is one of the by products of using a cooling system?

Consider the laboratory on HPLC analysis of components in diet soft drinks. Your standard solutions for caffeine were prepared from a stock solution of 0.40 mg/mL caffeine, from which you drew, 1.0, 2.0, 3.0, 4.0 and 5.

Which of the following equations is balanced in a basic solution? A. ClO - (aq) + 2H - (aq) + 2e - Cl - (aq) + H2O (l) B. ClO - (aq) + H2O (l) Cl - (aq) + 2OH - (aq) C. ClO - (aq) + 2H - (aq) Cl - (aq) + H2O (l) D.

2. How would a thermometer that measures temperatures on the Kelvin scale differ from one that measures temperatures on the Celsius scale?

The capacity of an eye dropper would be a few a kilometers be leiters C deciliters d milliluters

2C 2 H 6 + 7O 2 * **>4CO 2 + 6H 2 O if 7.0 g of C 2 H 6 react with 18 g of O 2, how many grams of water will be produced

22 days converted into how many seconds?

How do you do percent composition in chemistry?

Which mixture has the largest particle size?