Which of the following crystals would be most brittle and hard?

Ag

ZnS

F2

C12H22O11

Foods are broken down into their building blocks by adding water. this would be an example of which characteristic of water? view available hint (s) foods are broken down into their building blocks by adding water.

The following ionization energies were found for an unknown element: - A) 1st Ionization Energy 9.32270 eV B) 2nd Ionization Energy 18.2114 eV C) 3rd Ionization Energy 153.89661 eV D) 4th Ionization Energy 217.

Most plastic water bottles are disposed of in landfills and will take thousands of years to break down. True False

Fish give off the compound ammonia which has a pH above 7. To which class of compounds does ammonia belong?

If you put an egg on a sidewalk on a hot day in July and try to cook it you are using? passive solar energy geothermal energy active solar energy biomass

Luis set a glass of ice water out side is the sunshine. when he looked at the glass 10 minutes later, the contents had changed. what kind of change happened to the ice water? A. evaperation B. conduction C. chemical change d. sudden change

A substance is considered to have a smaller surface area when ... A. it is a fine powder B. it is in large chunks C. you have a small amount of the substance D. you have a large amount of E. the substance

Which is the noble gas notation for chlorine? A-[Ne] 4s2 4p5 B-[Ne] 3s2 3p5 C-[Ne] 3s2 3p3 D-[Ne] 3p2 3p5

Is argon long hand or noble gas

Lithium, beryllium, and boron are elements with atomic number 3, 4, and 5, respectively. Even though they are three of the five simplest elements, why are they rare compared to many heavier elements?