18. An objective observation is one without

A. direct quotes.

B. explanations of the environment.

C. bias or judgment.

D. details about what's happening

The temperature of a gas decreases when the pressure _ at constant volume

Sunlight produces a spectrum of colors that includes what?

Assume that 50.0 cal of heat is applied to a 15 g sample of sulfur at 20°C. What is the final temperature of the sample if the specific heat of sulfur is 0.175 cal / (g • °C) ?

The number of moles of c atoms in 3.20 moles of c2h60

In two or more sentences describe the impact of fossil fuel combustion on the global carbon cycle.

Which of the following compounds is the most soluble in water? a) propanoic acid b) propane c) propanal d) l-bromopropane

What mass of solid Na2CO3 is required to make 250.0mL of a 0.125M solution of Na2CO3?

The atomic mass of carbon is 12.011 g/mol. how many atoms of carbon have that exact mass? why?

Which option is true about the effect of polarity on solubility? Select all that apply. Polar solutes dissolve better in water than in oil. Polar solutes have the greatest solubility in nonpolar solvents.

Which change results in a release of energy? 1. The melting of H₂O (S) 2. The boiling of water (L) 3. The evaporation of H₂0 (L) 4. The condensation of H₂0 (G)