Mass = 124.4 g volume = ? ml density = 0.915g/ml

Given the following reaction: 2 OF2 + 2 S → SO2 + SF4 + 319.5 kJ Is this endothermic or exothermic? Draw the energy pathway:

Which statement is the best description of a chemical bond? A. A chemical bond holds atoms together. B. A chemical bond connects 2 different molecules. C. A chemical bond identifies atoms in a molecule. D. A chemical bond turns molecules into atoms.

Nitrifiers are bacteria a. capable of living in symbiosis in the roots of some plants. b. capable of oxidizing NH3 using NO. c. that convert N2 to NH3. d. that generate nitrites or nitrates. e. capable of using NH3 as an electron donor.

Exactly 12.0 grams of potassium chlorate is placed in a reaction vessel; following the decomposition, 1.55g of kClO3 - remain unreacted. Calculate the total volume of oxygen collected at 25 degrees celsius and 0.95atm.

The reaction between alcohols and organic acids will form: ketones esters aldehydes cholesterols

Which metal is more active than tin, but less active than zinc

Why does the amount of energy available change as you move from one trophic level to the next?

What type of bond holds metal atoms together?

Imagine you are purifying a protein which accounts for 0.001% of the total protein within a cell. how many steps of purification are required to yield pure protein, assuming a 10 fold purification with each step of purification?

If an object has the mass of 109.67 g and a volume of 16.99 cm3 what's its density