Select the person responsible for the following:

microscope

Galileo

Van Leeuwenhoek

Edison

Newcomen

What information do you need to find? A. the number of people living in America B. the size of each state C. the number of parks in each city D. the amount of pollution generated by cars

It is possible to increase a reaction rate by adding very small amounts of a catalyst, and this is because ... A. The catalyst is used over and over again during the reaction. B. Only a small amount of catalyst is needed to increase temperature. C.

Which of the four solutions is the best buffer against addition of acid or base? a. na2hpo4 b. na2hpo4 + nah2po4 c. nah2po4 d. h2o submit for grading save and finish later?

In the gas-phase reaction 2A + B 3C + 2D, it was found that, when 1.00 mol A, 2.00 mol B, and 1.00 mol D were mixed and allowed to reach equilibrium at 25°C, the resulting mixture contained 0.90 mol C at a total pressure of 1.00 bar. 1.

How is radiation related to electromagnetic waves and thermal energy?

How many moles of CO will be produced, if 32.5grams of H2O are produced? C6H6S+6O2=>6CO+3H2O+SO3

Identify and briefly describe two ecosystems in your community that are beyond schoolyard

Is N2H2 a ionic compound?

What do Lewis dot structures show?

300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.