At what phase change does a substance change from solid to gas or steam without first changing to liquid?

A) sublimation

B) statement

C) vaporization

D) melting

What happens when you mix hydrochloric acid with sodium hydroxide

There are many different ways to classify matter, but one way is to use only two categories for all matter. All matter can be classified as either a. liquids or gases. b. atoms or molecules. c. elements or compounds. d. mixtures or substances.

A potassium atom can achieve a stable octet by A. losing one electron. B. losing seven electrons. C. sharing one electron. D. gaining one electron

What makes a pure substance different from a heterogeneous mixture? The components of a pure substance are mixed unevenly instead of evenly within the pure substance. Insoluble instead of soluble particles are suspended within the pure substance.

How do you calculate the mass of 6 moles of CO2?

Which elements are likely to have a larger atomic radius than silicon (Si). aluminum (Al) carbon (C) sulfur (S) tin (Sn)

What volume of concentrated nitric acid (15.0 M) is requiredfor the preparationof 2.00 L of 0.001M nitric acid solution?

Which are NOT vascular seedless plants?

Consider this reaction: 2al (s) + 3 cucl2 (aq) → 2alcl3 (aq) + 3 cu (s) if the concentration of cucl2 drops from 1.000 m to 0.655 m in the first 30.0 s of the reaction, what is the average rate of reaction over this time interval?

Which metal is most likely to be formed easily into thin sheets? o scandium o chromium O gold