True or false? All four types of macromolecules always contain carbon (c), hydrogen (h), and oxygen (o), but not all of them contain nitrogen (n).

A sample of gas has a volume of 571 mL at a pressure of 4.04 atm. The gas is compressed and now has a pressure of 7.17 atm. Predict whether the new volume is greater or less than the initial volume, and calculate the new volume.

An atom has a mass number of 32 and 17 neutrons. What is the atomic number of this atom?

Wind is which type of energy? A. thermal B. mechanical C. rotational D. potential i well give you 99 pts

A neutral isolated atom has a ground state configuration of 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 3. Identify the element. 1. The question cannot be answered unless the atomic weight is known. 2. Argon (Ar). 3. Vanadium (V). 4. Phosphorus (P). 5.

Insoluble compounds in a chemical reaction are called?

What is a converging lens

What type of reaction is 2 NO2 - --> 2 O2 + N2

The main source of phosphorous is in: rocks water plants the atmosphe

To what part of a plant does the stem sliver water and nutrients

You place a balloon in a closed chamber at STP. When the balloon doubles in size, what happens to the chamber pressure? A.) The pressure stays the same B.) The pressure doubles C.) The pressure reduced by one half