Which of the following choices tells a computer how to preform a certain task?
1.computer memory
2.a computer program
3.a computer shell
4. A CPU

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

What does the symbol (–hfus) indicate in a phase change?

How many moles of oxygen gas are produced from the decomposition of six moles of potassium