A student had a sample of pure water, and added an unknown substance to it. the student noticed that the hydroxide ion concentration in the solution increased as the substance was added. what is true about this newly formed solution?

How do you find the atomic mass and atomic number of Hydrogen-2?

What happens to resistance and current when more loads are added to a parallel circuit? A - Resistance decreases and current increases. B - Resistance and current are unaffected. C-Resistance increases and current increases.

A giant star has a luminosity of 300 its color is most likely to be a. yellow red b. black c. white d. blue white

Name and describe the phase change that occurs when dry ice is placed in an open container at room temperature.

Which two objects repel each other? A. a proton and a neutron B. two neutrons C. a proton and an electron D. two protons

What is the "atomic mass" of an atom?

What type of energy comes from the food that we eat?

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen