What other materials besides water can change states?

A plastic cup is filled with 15.5 grams of water. The cup is sealed and placed in the freezer. The water freezes and turns to ice. The next day, the ice is taken out of the cup and massed. What is the mass of the ice?

1. Which of the following best describes the difference between the procedures used in Experiments 1 and Experiment 2? A. In Experiment 1, the temperature was varied; in Experiment 2, the diameter of the tube was varied.

The chemical formula for table sugar is C12H11O22. What can you tell from this formula? There are 22 protons in an oxygen atom. There are 12 electrons in a carbon atom. The ratio of oxygen atoms to hydrogen atoms in a molecule of sugar is 2 to 1.

In the chemical formula 2NO2 how many atoms are present

2. Perception: a. is faulty. b. is not always accurate. c. does not always reflect reality. d. All of these choices.

The temperature scale that starts with absolute zero is the ___ scale

A sample of hydrogen gas has a pressure of 1.50 atm with a volume of 5.00 L, what is the pressure if the volume is expanded to 7.74 L

Which substance is an Arrhenius acid

Which is another name for groups of elements

The result of one experiment carried out by a research team would be considered valid if