What is the job of a seismologist? Why is their role so important to people living in earthquake-prone areas?

Alpha particles beamed at thin metal foil may a. pass directly through without changing direction b. be slightly diverted by attraction to electrons c. be reflected by direct contact with nuclei d. A and C e. A, B, and C

The bond dissociation energy for nitrogen is 941 kj/mol. what is this value in calories

Color change is most indicative of which type of chemical reaction?

Give one source of chlorine gas

Which statement justifies that hydrogen peroxide (H2O2) is a polar molecule? The O - H bond is nonpolar and the molecule is asymmetric. The O - H bond is nonpolar and the molecule is symmetric. The O - H bond is polar and the molecule is asymmetric.

Which of the following statements about igneous rocks is correct A. intrusive igneous rocks are formed when magma is called above the ground. B. Extrusive igneous rocks are formed when magma is cooled above the ground C.

The compound KOH is called

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?