When air moves upward to áreas of less air pressure what ofen forms

Within the main group of elements, what do elements in a family have in common? same number of energy orbits same number of protons same number of valence electrons same atomic radius

Many people avoid processed food to eliminate unnecessary ingredients like food dyes and excess sodium from their diets. A study calculated that every 70.

Which of the following correctly describes molecules of two different gases if they are at the same temperature and pressure? A. They must have the same mass B. They must have the same velocity C. They must have the same average kinetic energy D.

If the initial temperature of an ideal gas at 2.250 atm is 62.00 °C, what final temperature would cause the pressure to be reduced to 1.550 atm?

Which one of the following are appropriate units for measuring volume? A. grams B. Newtons C. linear feet D. cubic centimeters

You have decided to test the effects of five garden fertilizers by applying some of each to five separate rows of radishes. what is the variable you are testing? what factors should you control? how will you measure the results?

2. Convert 0.0489 g to mg

How did the development of the earliest idea about atoms differ from the later work of scientists? A. It was based on sound evidence. B. There were explanations for the idea. C. It was based on the thoughts of an early philosopher. D.

Why can't a lead storage battery be recharged indefinitely?

How many liters of 1.88 M solution can be made with 29.5 grams of lithium fluoride?