How man kilo-calories of heat are required to raise the temperature of 225 g of aluminum from 20 C to 100 C?

0.59 kcal

3.8 kcal

38 kcal

85 kcal

Which set of products is most likely to result from the combustion reaction shown below? C4H8 (l) + 6O2 (g) A. 2C2H4O6 (g) B. 4CO2 (g) + 4H2O (g) C. 4CO3 (g) + 4H2 (g) D. 4C (s) + 4H2O (l) + 4O2 (g)

Sterling silver is: A) a heterogeneous mixture B) colloid C) an element D) Homogeneous mixture

How many atoms are present in 2 molecules of C6H12O6

What mass of ammonia is formed when 3.75 grams of nitrogen gas react with hydrogen gas according to the balanced chemical equation: N2 (g) + 3H2 (g) - -> 2NH3 (g) ? 3.75 g 4.55 g 7.50 g 9.10 g

When like atoms are joined by a covalent bond the bonding electrons are shared?

A flexible container is filled with 960.0 liters of air at 38 degrees Celsius. If pressure in the container does not change, at what temperature will the container have at a volume of 350.0 liters?

Which subatomic particles are paired with their charges? 1. electron-positive, neutron-negative, proton-neutral 2. electron-negative, neutron-neutral, proton-positive 3. electron-negative, neutron-positive, proton-neutral 4.

Where do you think information is coded in a DNA molecule?

The mole fraction of carbon dioxide in a gas mixture is. 200 there are also. 251 g of nitrogen and. 322 g of oxygen in this gas mixture what is the mass of arbon dioxide in this mixture

How do you do empirical formula