Select the name of the period 4 transition element that forms a 3 + diamagnetic ion.

In which of the following species does sulfur have the same oxidation number as it does in H2SO4? (A) H2SO3 (B) S2O32- (C) S2- (D) S8 (E) SO2Cl2

What are scientific questions based on

Four causes of mechanical weathering are

When 1.0 g of solid NaOH (Triangle Hsoln = - 445.1 kJ/mol) dissolves in 10 L of water, how much heat is released?

Which characteristic is unique to cephalopods? They have a radula. They can live in water or on land. They have a closed circulatory system. They can produce pearls.

What volume of 20 mg/L dye would be required to make 50. mL of. 10 mg/L dye?

A weather balloon at Earth's surface has a volume of 3.9 L at 299 K and 763 mmHg. If the balloon is released and the volume reaches 4.13 L at 720 mmHg, what is the temperature? Answer in units of K.

Molecules that resemble fats but contain phosphate functional groups are called: a. steroids. b. polypeptides. c. phospholipids. d. nucleic acid.

Draw the correct structural formula for the following compounds: (be sure to include the hydrogen atoms where required) a) 2-pentene b) 2,3-diethyl-3,5-dimethylhexane c) 4-ethyl-2,6-dimethyl-2-heptene

4. Electronegativity is a measure ofA) the energy needed to remove an electron from an atom. B) the energy released when an electron is added to an atom. C) the magnitude of the negative charge on an electron.