This element is found in group 1, period 7 and has the lowest mass in this period. (8th Grade Chemistry)

Which is the most reasonable explanation for a drop of temperature for gas

an element has atomic numer 10 and an atomic mass of 20. how many neutrons are in the atom of this element

What role did sulfuric play in the ester hydrolysis reaction? a. it reduced the reactivity of the starting material. b. it increased the ph of the solution. c. it behaved as a catalyst. d. it behaved as the nucleophile?

A toothpick, pencil, and log are all the same type of wood. explain which would be most dense. answer

How is heat produced in a chemical change

One of the main ideas of the Quantum Theory is that: the energy of an electron can never be changed the energy of an electron can be varied by any amount the energy of an electron can be changed only by set amounts the energy of an electron can

ATP is a source of free energy that drives unfavorable reactions. Which of the processes are coupled to the dephosphorylation of ATP?

Calculate δg o for each reaction using δg of values: (a) h2 (g) + i2 (s) → 2hi (g) kj (b) mno2 (s) + 2co (g) → mn (s) + 2co2 (g) kj (c) nh4cl (s) → nh3 (g) + hcl (g)

7. A movable piston contains a sample of 680 mL of neon gas with a temperature of - 5 degrees C. When the piston is heated the sample expands to a volume of 1.32 L. What is the new temperature of the neon gas? 8.

How many moles are in 2.12g Cr2O3