What is an example of an irreversible physical change?

melting an ice cube

making sawdust

crumpling paper

boiling water

1. Calculate the molar enthalpy of solidification (ΔHsolidification) when 10.00kJ of energy are lost as 30.00g of water are frozen at 0ºC. Remember that this value will be negative, because energy is lost when water freezes.

Two chlorides on the carbon of a methane unit are called: (choose one) -methyl chloride -dichloromethane -chloroform -carbon tetrachloride

When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as When filling degenerate orbitals, electrons fill them singly first, with parallel spins is known as: A. Hund's rule B.

Which of the following is a compound machine? A. Bicycle B. Ramp C. Knife D. Screw

How many donuts are in a mole of donuts?

What do Lewis dot structures show?

300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.

What element has the electron arrangement 2,8,4?

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO