The opening in a leaf that lets things in

and out is the what?

Use the following table to answer the question: Element Mass Number Atomic Number Aluminum 27 13 Nitrogen 14 7 Helium 4 2 Fluorine 19 9 Which element has the most neutrons in the nucleus? Aluminum Nitrogen Helium Fluorine

In the first step, 4-sulfanilic acid reacts with sodium nitrate to form diazonium ion intermediate. Identify the Lewis acid and Lewis base in this reaction.

Why are electrical wires insulated with plastic or rubber?

Which item dose not contain a noble gas flash camera or mp3 p[layer

A straight chained hydrocarbon with this formula C5H10, has a triple paired C-C bond, has a double paired C-C bond, is essentially inert, or is unstable and extremely reactive.

A group of students are making a sign that is 3 meters long. If each student works on 20 cm of the sign how many students can work on the sign?

How many molecules are in 4.50 moles of H2O? A. 450 molecules B. 6.02 x 1023 molecules C. 2.71 x 1024 molecules D. 3.00 molecules

What is the main difference between a longitudinal wave and a transverse wave?

How many moles of methane (CH4) are in 7.31*10/25 molecules

What starting matirials do cells need for cellular respiration