What do scientists generally do if they are NOT sure what the expected value of a measurement should be?

If a jar of honey sits for a long time, sugar may crystallize in the jar. Describe two possible causes for the crystallization.

Which of the reactions below is a formation reaction? 1. 2 fe (s) + 3 o (g) → fe2o3 (s) 2. n2 (g) + 2 h2 (g) + 1 2 o2 (g) → n2h4o (g) 3. b2 (s) + 2 i2 (ℓ) + cl2 (g) → 2 bi2cl (g) 4. cdiamond (s) + 1 2 o2 (g) → co (g) ?

The combustion of 135 mg of a hydrocarbon produces 440 mg of CO2 and 135 mg H2O. The molar mass of the hydrocarbon is 270 g/mol. Determine the molecular formula of this compound.

What are nonrenewable energy sources

Soil shows what evidence of life

How many atoms are there in 2.3 grams of H?

Which of the following would dissolve in water, and why? None of these substances would dissolve in water Candle wax, it is a nonpolar substance Motor oil, its primary IMF is London Dispersion Forces Acetic acid, it ionizes into ions when added to

Have a region surrounding the central area called

1. Simplify. | A. O 16 B. O C. 04 D. O

What is the (H+), if the pH of a solution is 3.20?