Maybe use flash cards for them to understand or look up periodic table on line and show them.
Answer:
the sun goes away and takes heat with it
Explanation:
C.
Anthracite has the highest carbon compact and fewest impurities.
Also, the highest calorific of all types of coal except for graphite.
Answer:
B
Explanation:
the pH scale is based on the function
1x10-14
So since pH is neutral the concentration of OH and H must be equal hence the only option in which the concetration would [OH]{H}= 1x10-14 would be when both are equal so it cannot be a or d and when they are expressed in concetration so the only option is B.
Answer:
B
Explanation:
as it depends on electronic configuration
