What is a neutron and what charge does it have

How do carbon-12 and carbon-13 differ? Select all that apply. They have different amounts of neutrons. They have different atomic charges. They have different mass numbers. They have different amounts of electrons.

What is the approximate mass of iron

Why is Sn (SO4) 2 named Tin (IV) Sulfate and not Tin (II) Sulfate?

Cole feels dizzy, and his stomach hurts. Cole has already vomited twice today and has diarrhea. Which of the following health problems does Cole most likely have?

What are the types of radioactive rays that can be produced during a radioactive decay?

What two forces cause the arc-shape of projectile motion?

Why are some mystery elements easier to identify than others?

Which of the following processes is exothermic (heat or energy is released) ? A) ice melting in a beverage B) dry ice (solid CO2) converting to a gas at room temperature C) evaporation of water from a mud puddle D) burning propane in a barbeque

What is one way to increase the dissolution rate of a sugar cube? a) crush the sugar cube into smaller pieces b) add more sugar cubes to the solvent c) increase the pressure on the solution d) decrease the temperature of the solution

Vitamin A is a very large organic molecule composed of twenty atoms of carbon, one atom of oxygen and thirty atoms of hydrogen. How many atoms total are in TWO molecules of vitamin A. Select one: 84 68 34 102