Answer:
When an electric current is passed through acidified water, it decomposes to give hydrogen and oxygen gas. The hydrogen gas is obtained at the cathode and the oxygen gas is obtained at the anode
Answer:
Listen in Class. The first step to passing any test is to begin preparing right there in the classroom. ...
Review Lab and Lecture Notes. ...
Know the Vocabulary. ...
Develop a Study Schedule. ...
Take Advantage of Online Study Resources.
Explanation:
Answer:
B
Explanation: hoped this helped!!!
Answer: A convex lens is used to converge ligtht.
Explanation:
A concave lens is a lens that is thicker on the ends than in the middle. As consequence of this, a concave lens diverges (separate) the rays of light. A concave lens is also called diverging lens.
A convex lens is is thicker in the middle than on the ends. As consequence of this, a convex lense converge the parallel rays that pass through it. A convex lens is also called converging lens.
Its D because
Li = 6
Be =9
C= 12
O=15
