For the reaction 2 no2 (g) + f2 (g) 2 no2f, the rate constant, k, isgiven ask=3.8Ã101dm3mol sat 27

c. if the reaction is first order in no2 first order in f2, what is the ratio of[b]/[a]after 10s in a 4.00Ã102d3 cylinder at 27 c

The atomic number of silver-108 is 47. Its mass number is 108. How many protons and neutrons does silver-108 contain? A. 47 protons, 61 neutrons B. 47 protons, 108 neutrons C. 61 protons, 47 neutrons D. 108 protons, 47 neutrons

Which element above has 8 protons in its nucleus? a. oxygen b. carbon c. phosphorus d. sulfur

Which of the following is not true? Newton's Laws include three laws about force and motion. An object will not change velocity unless acted upon by a force. Every action has an equal and opposite reaction.

A student purchases and weighs 5 pounds of carrots from a local grocery store. she notices that the grocery store constantly sprays its produce with distilled water.

Which one of the atoms shown would be most likely to form a cation with a charge of 1?

How many moles of methane are produced when 25.1 moles of carbon dioxide gas react with excess hydrogen gas?

Which reaction releases the greatest amount of energy per kilogram of reactants? A) neutron + uranium-235 ➡️ barium-141 + krypton-92 + 3 neutrons B) 2C + H2 ➡️ C2H2 C) C3H8 (g) + 5O2 (g) ➡️ 3CO2 (g) + 4H2O (l) D) NaOH (aq) + HCl (aq) ➡️ NaCl (aq) +

Name the hardest artificial substance known?

Suzzane has type A - blood. Which thpe of blood could she receive in a blood transfusion?

What can I draw or write about that's related to science?