Why are gasses elements on the periodic table?

What will happen to the physical state of gases if pressure is increased and temperature is decreased?

How is a compound different from a mixture?

Ohanna is studying what happens to the energy as a ball rolls down a ramp. What is she studying? Check all that apply. gravitational potential energy electrical energy kinetic energy mechanical energy elastic potential energy

Use the information about igneous rocks A-D to classify each one as intrusive or extrusive and basaltic or granitic. Fill in the chart with A, B, C, or D.

Explain what would happen if an electron and a proton were brought near each other and then released. why would this happen?

How do you determine the percent yield of a chemical reaction?

What is a property of a combustion reaction? A. Oxygen gas, O2, is a reactant. B. The products are simpler than the reactants. C. The reactants are simpler than the products. D. An uncombined element is on the reactant and product side.

For an endothermic reaction at equilibrium, the addition of a catalyst Group of answer choices causes no shift causes a shift to the right causes a shift to the left makes it an exothermic process

The atomic number of an element best corresponds to which of the following? O The mass of an atom of that element. O The number of electrons orbiting the nucleus of an atom of that element.

If a dinosaur once lived in mexico, and i now live in arkansas, can i be drinking the same water the dinosaur did?