Which elements in the periodic table are metalloids or have semimetallic properties?

A) N and Br

B) As only

C) Br only

Describe what water does to pavement when it continually freezes and thaws

Examine the equation. 2H2 (g) + O2 (g) → H2O (l) Match the equation's components to the appropriate description. H2O - - product O2 - - reactant (g) - - state of matter → - - yields

How many millibars are equal to 27:23 inches of mercury. How did you get you answer

Where are you likely to find Safety Data Sheets at the client site? (choose the best 2 options) On the computer as an electronic file In a work area where the chemicals are stored or used In the manager's office In the lobby area

What is a niche of a greenfly?

Why do elements within a period of the periodic table have different properties

A professional technician maintains and operates specialized scientific equipment. True False

What is the distance from the highest part of one wave to the highest part of the next wave.

Calculate Delta E when 33.0 g of carbon dioxide sublimes at 77.0 K and 1 ATM

Calculate zeff for a valence electron in an oxygen atom.