A compound that contains 63.15% carbon, 5.30% hydrogen and the remaining percent oxygen

How much heat is needed to melt 45.00 g of ice at 0°C if the latent heat of fusion of water is 333.7 J/g? 288.7 J 378.7 J 14,220 J 15,020 J

Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 1.00 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C? Use CP = 30.

The taste of sour milk is lactic acid. What is the molecular formula for lactic acid if the percent composition is 40.00% C, 6.71% H, 53.29% O, and the approximate molar mass is 90 g/mol?

The three-dimensional structure of macromolecules is formed and maintained primarily through noncovalent interactions.

Calculate the energy required to melt 12.4 g of ice at 0 oC. The molar heat of fusion for ice is 6.02 kJ/mol.

How fast can a turbidite bed form? a matter of minutes a matter of seconds a matter of hours a matter of years

The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 100-gram sample of carbon-14 after 2 half-lives? 75 6.25 12.5 25

Which of the following describes the difference between nitrogen-14 and nitrogen-15? A. Nitrogen-14 has 14 electrons, 14 protons, and 14 neutrons; nitrogen-15 has 15 electrons, 15 protons, and 15 neutrons. B.

How do you balance an equation?

What is the force caused by wind pushing on a building?