The atomic model that describes an atom as a spherical object containing a certain number of electrons trapped in a mass of positive charge is often called

Know the difference between an ion and a molecule

While transferring the weighed salt to the test tube in the experiment, a student accidentally spilled some of their sample.

Based on the information given about capsules, which of the following types of molecules would you suspect comprises an S. pneumoniae capsule? 1. monosaccharide carbohydrate 2. triglyceride lipid 3. polysaccharide carbohydrate 4.

Which will cause a decrease in gas pressure in a closed container A) Reducing the volume B) Adding more gas C) Lowering the temperature

When you use the terms heavier or lighter to compare different objects with the same volume, what property of the objects are you usually comparing?

What is the mass in grams of 390 mL

Around 1910, Rutherford bombarded gold foil with alpha particles. Most of the alpha particles passed straight through. To his surprise, a smaller number were deflected by 180°. This summary recounts the scientific discovery of A.

What is the density? Mass = 120 g Volume = 96 mL

A spoonful of salt is stirred into a pot of water. The salt is a

What are some catchy projects titles for the question, "What liquids cause the most tooth decay?"