Methane will not burn in air until a spark or flame is applied. Why not?

When an aluminum cube of edge 0.100 m and temperature T0 = 5.00°C is submerged in a bucket of water, the level of the water rises right up to the rim of the bucket. What would happen if the aluminum cube were first warmed to 85.

By studying fossils, scientists have learned that A. Both animals and plants have changed over time. B. Plants have changed over time, but animals have not. C. Animals have changed over time, but plants have not. D.

Do butterfly coral and amoeba come from preexisting cells

How many miles of a gas sample are in a 20.0 l container at 373kand 203 kpa? the gas constant is 8.31 l-kpa/m-k

How many hydrogen atoms are present in 5.00 mg of aspartame?

A compound has a percent composition of 24.74% potassium (molar mass = 39.10 g/mol), 34.76% manganese (molar mass = 54.94 g/mol), and 40.50% oxygen (molar mass = 16.00 g/mol).

What would be the saturation concentration (mole/L) of oxygen (O2) in a river in winter when the air temperature is 0°C if the Henry's law constant at this temperature is 2.28 * 10-3 mole/L-atm? What would the answer be in units of mg/L?

Magnesium carbonate--->? + carbon dioxide

Determine the number of moles 28.8 g Br2

Which statement best explains why heating a liquid affects its viscosity?