6. Radioisotope A has a half-life of 2 minutes. Radioisotope B has a half-life of 2

hours. Which one would have a larger amount left after 5 hours has elapsed?

Which class of organic compound is commonly used in fuels? alcohol ketone alkyl halide carboxylic acid

Alpha and beta particles and gamma rays are examples of: a. isotopes b. atoms c. ionizing radiation d. neutrons

Why does an evaporating liquid cool down according to the Kinetic Molecular Theory?

5 Fe2 + (aq) + MnO4 - (aq) + 8 H + (aq) ⟶ 5 Fe3 + (aq) + Mn2 + (aq) + 4 H2O (l) determine if each of the following statements is True or False. 1) MnO4 - (aq) is the oxidizing agent. 2) Fe2 + (aq) gains electrons. 3) Mn2 + (aq) is the reducing agent.

How many grams of KCl (74.55 g/mol) is produced from 106 g of Cl2?

How many moles of boron are in 1.61 * 1034?

How many grams of RbOH are present in 35.0 mL of a 5.50 M RbOH solution?

Which balanced equation represents a chemical change? (1) H2O (l) + energy → H2O (g) (2) 2H2O (l) + energy → 2H2 (g) + O2 (g) (3) H2O (l) → H2O (s) + energy (4) H2O (g) → H2O (l) + energy

What did the scientist say to the hydrogen atom that claimed to have lost an electron worksheet?

Based on reactivity, which of the following elements can replace aluminum (Al) in a compound during a single replacement reaction?