Match the element with its description. Column A
1. Sodium :
2. Silicon :
3. Bromine :
4. Argon:
Column B
a. Nonreactive gas
b. Has properties of both metals and nonmetals
c. Malleable, soft, and shiny
d. Highly reactive gas
What are the matches?

The difference between two numbers is 15. when twice the smaller number is subtracted from three times the larger number, the difference is 58.what is the larger number?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Aprisoner is forced to go into one of three rooms, but he can choose which room. the first room is ablaze with fire. the second one is rigged with explosives that will go off as soon as he enters. the third contains a pair of lions who haven't eaten in years. which room should he choose to survive?