Answer:
Change in chemical properties
Explanation:
Answer:
it's either B. or C.. hope this helps!
Explanation:
Answer:
c
Explanation:
because the fire gives off radiation
Answer:
7 is the only basic number on a pH scale
Answer : The formula unit of Sr & Cl is
and the formula unit of Al & S is 
Explanation :
Formula unit : it is defined as the lowest number ratio of ions of an elements in an ionic compound or covalent compound.
For the formula unit of Sr & Cl, two chloride ions
are needed to neutralize the one strontium ion
.
For the formula unit of Al & S, three sulfide ions
are needed to neutralize the two aluminium ion
.
The formula unit of
and
are shown below.