A reaction has a ΔH value of + 120 kJ and a ΔS value of - 42 J/K. At which of the following temperatures is the reaction spontaneous (meaning ΔG is negative) ?

Is all matter made up of tiny particles called atoms?

How many grams are in 238 moles of arsenic

Which body tissue or organ contains the most mitochondria?

Adding heat energy causes molecules to slow down. true or false?

What ratio is used to carry out each conversion? a. mol CH4 to grams CH4 b. L CH4 (g) to mol CH4 (g) (at STP) c. molecules CH4 to mol CH4 I honestly don't kno what it's asking me I got 1 mol CH4 / 16 (g) CH4 for a. 1 mol/22.4 L for b. and 6.

Which of the following adaptations to life on land is found in both insects and modern reptiles? A. metamorphosis from a larval form B. body surfaces that resist evaporation C. tracheae to distribute oxygen D. ability to fly E.

Draw the correct structural formula for the following compounds: (be sure to include the hydrogen atoms where required) a) 2-pentene b) 2,3-diethyl-3,5-dimethylhexane c) 4-ethyl-2,6-dimethyl-2-heptene

Letters B and C on this model show us daytime on Earth. Both locations have daytime because of A) Earth's tilt on its axis. B) Earth's orbit around the sun. C) Earth's rotation on its axis. D) Earth's distance from the sun.

Blanking and Punching size:A compound die will be used to blank and punch a large washer out of 6061ST aluminum alloy sheet stock 3.80 mm thick. The outside diameter of the washer is 60.0 mm and the inside diameter is 28.0 mm.

Whats the difference between china and Europe