Answer:
Some of the things, are extremly toxic to life
like nuculear power plants, create nuculear waste
you need to let it sit there for several years
unless if you want to get sued by the Enviromental protection agency
Explanation:
Answer: You can increase the weight, then test the speed, and make the weight normal and test the speed, and mark which one travels faster.
Explanation: This would test your hypothesis by comparing the speeds of the cars when more mass is added. Calculating the difference of the speed with more mass, and the speed with normal mass would give you your answer. A positive number would prove your hypothesis and a negative number would disprove it.
D all of the above answers are correct
Answer :
Explanation :
The aluminium and fluorine react to give ionic compound aluminium fluoride.
Aluminium has 1 valence electrons in their shell and fluorine has 7 valence electrons in their shell.
For the complete octet, both aluminium and fluorine exchange valence electrons to form an ionic compound.
The aluminium donates its three valence electrons to three fluorine atoms and they form one 
and three 
ions.
Electron transfer image is shown below.
Answer:
4 sig figs: 20.18
Explanation:
the smallest amount of digits was 4 in the expression
