Answer: B
Explaination: The liquid solution changed color means is turned into a different substance with different properties. It is chemical change .
I can't find the c orrect ratio in the selection. The formula for beryl is Be3Al2(SiO3)6 so it should be 3:2:6.
Atomic radius increases down a group
b............................................
Answer:
c
Explanation:
Electrical energy flows into the toaster from a wire plugged into the domestic electricity supply. The filaments are so thin that they glow red hot when the electricity flows through them. Like a series of small radiators, the filaments beam heat toward the bread in the toaster
