Co2 is a compound but O2 is not. Why

If the rate of decrease for the partial pressure of N2H4 in a closed reaction vessel is 80 torr/h, what is the rate of change for the partial pressure of NH3 in the same vessel?

A polymer becomes more rigid if more cross-links form true or false?

Question 4 2 pts A carbon-hydrogen bond, which has the highest pka value (-60), is too strong to react with chlorine radicals. O True O False

Based on the trends within the periodic table of elements, decide which of the following elements has the same number of orbitals? A. Cu, Ag, Au B. N, O, F C. Be, Mg, Ca D. B, Si, As

Sulfur dioxide gas reacts with oxygen gas to form sulfur trioxide gas. express your answer as a chemical equation. identify all of the phases in your answer.

For the reaction 6CO2 (g) + 6H2O (l) > C6H12O6 (s) + 6O2 (g), what mass, in grams, of glucose is produced from 3.00 moles of carbon dioxide?

Which of the following is a single-replacement reaction? A. CaCl2 + Na2CO3 CaCO3 + 2NaCl B. H2 + Cl2 2HCl C. 2AgNO3 + Cu 2Ag + Cu (NO3) 2 D. CH4 + 2O2 CO2 + 2H2O

Normal cellular pH has a hydrogen concentration of 3.98 x 10-8 M. what is the pH of a cell

What is evaporation? Describe what happens at the molecular level during evaporation.

Write is the chemical formula for calcium and chlorine