Which type of radiation is blocked by the skin but is the most dangerous once it is inside the body?

beta particles

radionuclides

alpha particles

gamma particles

Oxygen is in group 16, and it has valence electrons.

How many grams of water are theoretically produced in the reaction between 5 moles of sulfuric acid and 5 moles of potassium hydroxide?

If some of the bromine/methylene chloride mixture spills on you, what actions should you take? (choose all that apply) a. Remove your gloves and/or lab coat if any spilled b. Wash any affected skin with plenty of water c.

A wind turbine is used to power a generator. The wind turbine transforms kinetic energy into what form of energy?

Briefly discuss interpretations of your observations and results. Discuss how your observations illustrated LeChatelier's principle. Discuss how reactant concentrations change as equilibrium reactions shift to the left or the right.

A sample of helium, at 20 °c, occupies a volume of 3.17 l at a pressure of 6.21 atm. what volume does this helium sample occupy if the pressure is reduced to 5.57 atm while maintaining the temperature at 20 °c?

List the different kinds of nitrogen bases

What is the purpose of the scientific method? A. To make a guess in order to prove a hypothesis B. To provide a reliable answer to a specific question C. To remove any source of bias in an experiment D.

Given the balanced equation: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O, what is the total number of moles of O₂ required for the complete combustion of 1.5 moles of C₃H₈?

What are substances called whose solutions conduct electricity?