Light travels fastest through

water

glass

wood

a vacuum

Rank the following five elements by ionization energy Rank from highest to lowest ionization energy. To rank items as equivalent, overlap them Highest to Lowest S, Cl, Si, Mg, Na

Which statement best describes how activation energy influences a reaction? A The greater the activation energy, the greater the enthalpy of reaction. BThe lower the activation energy, the more energy is released.

You should plan daily activities for extended staying guests. True False

How many hydrogen atoms are in 5.20 mol of ammonium sulfide?

Newton's first law of motion was a giant leap forward in scientific thought during Newton's time. Even today, the idea is sometimes difficult at first for people to understand.

Describe two important functions for carbon dioxide in the atmosphere.

In the chemical reaction: 2 h 2 (g) o2 (g) → 2 h2o (g), with 8 grams of h 2 (2 grams/mole) and 16 grams of o2 (32 grams/mole) and the reaction goes to completion, what is the excess reactant and how much of that would remain

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19.28 g/cc.

Find the percentage composition of carbon in H5C2O

When studying atoms, scientists can ignore the force between charged particles that make up the atoms because it is many millions of times smaller than other forces in the atom.