Scientists observe patterns in how molecules interact with each other. At the same temperature, for example, liquids have more attraction between
particles than gases do. Water (H20) is a liquid at room temperature, while
carbon dioxide (CO2) is a gas at room temperature. Why? Choose the two
statements that apply.
Nonpolar molecules only attract polar molecules.
Polar molecules attract each other more than nonpolar molecules do.
O
Water molecules are polar. Carbon dioxide molecules are not.
Carbon dioxide molecules do not have polar bonds. Water molecules do.

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Aflask with vinegar in it has a mass of 160 grams. a balloon with baking soda in it has a mass of 40 grams. the balloon is attached to the flask to seal the opening and the vinegar and baking soda mixes. the balloon inflates to a large volume. what will the total mass of the balloon and flask be after the balloon inflates? explain. a) less than 200 grams because the solid baking soda disappears. b) 200 grams, because all the atoms remain in the balloon or flask. c) more than 200 grams because the size of the balloon is so much larger. d) less than 200 grams because gases such as the one in the balloon are lighter than solids and liquids.