Which way does heat flow? From a substance of lesser thermal energy to one of greater thermal energy. From a substance of greater thermal energy to one of lesser thermal energy.

True or false science is the study of the natural world.

What happens to the blood which reaches the cells from the capillaries? food and CO2 pass to cells, O2 pass to blood wastes and CO2 pass to cells, O2 pass to blood CO2 and O2 pass to cells, wastes pass to blood food and O2 pass to cells, CO2 and

What happens when we put oil into water? a. mixture is created. b. oil will dissolve in water. c. oil will separate from the water.

Which of these sets of elements has similar properties? chromium, magnesium, iron, cobalt oxygen, nitrogen, carbon strontium, magnesium, calcium, beryllium hydrogen, helium, neon

With the upcoming presidential election, Ira decided to create a survey to find out who might win. He carefully created a vali survey and gave it to five of his closest friends.

Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?

Which is a typical characteristic of an ionic compound? a. electron pairs are shared among atoms. b. the ionic compound has a low solubility in water. c. the ionic compound is described as a molecule?

34g aluminum are combined with 39g chlorine gas which is the limiting reactant

Using 3 O2 molecules and 5 H2 molecules, how many water molecules can be produced? Do you have any left over?

The specific heat of a certain type of cooking oil is 1.75 j / (g·°c). how much heat energy is needed to raise the temperature of 2.83 kg of this oil from 23 °c to 191 °c?