Radioactive decay gives off electromagnetic radiation and

a. rays.

b. particles.

c. waves.

71 x10^3 in scientific notation

Calculate the change in internal energy of the following system: a 100.0-g bar of gold is heated from 25 ∘C to 50 ∘C during which it absorbs 322 J of heat. Assume the volume of the gold bar remains constant.

What is the ratio of product to reactant given delta g?

When a 0.1 M H2SO4 solution is added to pulverized blackboard chalk, the following reaction takes place. CaCO3 (s) + H2SO4 (aq) - -> CaSO4 (s) + CO2 (g) + H2O (l) At 25°C, the reaction is spontaneous and has: A. negative ΔG' and positive ΔS' B.

During the reaction of copper metal with concentrated hno3 one of the products of the reaction is a dense, toxic and red-brown gas. what is the formula of this gas?

Observe: Change the Surface area from Minimum to Maximum. You can imagine that a solid reactant has been dissolved in a liquid. How does this change how many Reactant B molecules are exposed to Reactant A?

When placed in a 200-mL square box, a substance has a spherical shape and has a volume of 75 mL When placed in a 200-mL circular tube, the same amount of that same substance has a spherical shape and a 75-mL volume.

What is the example to the word camouflage

Given the reaction 2NaOH + H2SO4 = Na2SO4 + 2H2O, what is the total number of grams of NaOH needed to react completely with 196 grams of H2SO4

The mass flow rate of gasoline leaving a refinery is 1610 kg/min. The specific gravity of a gasoline is 0.700. A retail gasoline pump is able to fill a 20.0 gallon automobile tank in 1.80 minutes.