Answer:
-4
Step-by-step explanation:
Answer:
k= -/+3.78
Step-by-step explanation:
you devid Check all the characteristics below that describe elements.
one type of atom
a pure substance
more than one type of atom
chemically combined elements
Answer:
N= -2
Step-by-step explanation:
For 9. the third table and for 10. the second table