Answer:
A
Explanation:
Combustion reactions always produce water and CO2
Answer:
What Julie did wrong is that she did not read the instructions for her lab of wait for her instructor to allow her to get started.
Explanation:
it is essential to know what you are doing in a science lab because you can be injured seriously if you don't stop and take time to read and listen to you instructors directions.
Answer:
2NF3------->N2 +3F2
Explanation:
For the equation to be balanced, there must be six fluorine atoms on both left and right hand sides of the chemical reaction equation. Hence the coefficient of chlorine on the right hand side must be three for the equation to be balanced.
How many electrons does each element have to lose again to achieve a noble gas electron configuration?
Answer:
Explanation:
Each element will gain or lose electron to attain the octet of the noble gases in their outer shell electrons.
- Most metals in group 1 and 2 will lose 1 and 2 electrons apiece to attain a noble configuration.
- Non-metals are typically electronegative and will gain considerable amount of electrons to complete their octet.
- Halogens will need one electron to complete their own out shell configuration.
Elements will gain or lose an amount of electron that will make it resemble noble gases.
