Which statement best describes the Modern Atomic Theory? -Atoms are composed of protons located around a negative nucleus.
-Atoms are composed of electrons in energy levels around a positive nucleus.
-Atoms are composed of a nucleus made up of protons, neutrons, and electrons.
-An atom's mass is determined only by the mass of its neutrons.

What is the ph of a solution with a 1.50 × 10−9 m hydroxide ion concentration?

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

56.16 gregor mendel was the first scientist to use statistics to analyze scientific data. before mendel's experiments, scientists believed that organisms acquired traits from their environment and passed them on to their offspring. after mendel's discoveries were accepted, scientists realized that traits passed to offspring were the result of genes being passed from parents to offspring. this is an example of pls