Answer:
<u>2</u> XE + <u>1</u> AB. --> <u>1</u> AE2 + <u>2</u> XB
Above equation is now balanced
Answer:
summer
Explanation:
Why because the earth is around the sun the
You would use the density difference to separate the sand, evaporate the water out (the water vapor will cool back to water if collected). Then use a magnet to get the iron fillings out of the salt.
Answer:B
Explanation:Coefficient represents the number of units of each substance.
Answer:
Explanation:
The net force on electron is electrostatic force between electron and proton in the nucleus .
Fc = 
This provides the centripetal force for the circular path of electron around the nucleus .
Centripetal force required = 
So
