Lesson 13 does a chemical reaction destroy matter answer key

What is the molarity of a 750.0 milliliter solution containing 2.5 moles of solute?

Which element is composed of molecules that each contain a multiple covalent bond A. Chlorine B. Fluorine C. Hydrogen D. Nitrogen

The moon and the sun both affect the tides on Earth. This evidence BEST supports the hypothesis that A) the sun's and moon's gravitational attraction to water is unique. B) every object exerts gravitational force on every other object.

1. Living things are with each other and the environment.

What is the advantage in using a simple machine? Reduces the amount of work needed to move on object Increase the mechanical advantage by increasing the effort force that is applied Reduce the amount of energy required Reduce the work needed to

Which of the following is an example of an electric force that occurs in atoms

5. What is another name for Newton's first law in your own words.

The molar mass of magnesium (Mg) is 24.30 g/mol. There are 6.02 1023 atoms in 1 mol. How many atoms are present in 48.60 g of Mg? 3.32 10^-24 atoms 1.96 10^-21 atoms 1.20 10^24 atoms 7.11 10^26 atoms

Add 3.76 * 104 and 5.5 * 102 and write the answer in scientific notation. A. 9.26 * 104 B. 9.26 * 106 C. 3.82 * 106 D. 3.82 * 104

In a dynamic equilibrium between the liquid state and the gas state, what is true about the rate of evaporation? a. greater than rate of condensation b. less than rate of condensation c. equal to rate of condensation d. cannot be determined.