The oxidation numbers of Fe and Br in the compound FeBr2

True or false: Tectonic Plates move quickly so it is difficult to notice.

Which is true about the total mechanical energy in a closed system? O A. It is not conserved. O B. It is zero. O c. It does not change. O D. It is always decreasing.

Calculate the volume that 12.5 g of Co, gas will occupy at a temperature of 40°C and a pressure of 1.20 atm.

Which salt is produced when H2SO4 reacts with NaOH?

What type of bonding is found in Al and P

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?