Answer: no tea is not a pure substances
Explanation:
A Tea is a solution of compounds in water, so it is not chemically pure. It is usually separated from tea leaves by filtration. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture. ... A Aluminum oxide is a single, chemically pure compound.Sep 18, 2019
Answer:
hope you like it
Explanation:
because ouytermost shell contains two electrons
calcium is in group 2 so its valency is two valency is the number of outer shelll electrons it needs to have an stable outer shell . it needs 2 more .
Options please i think its John Dalton
Answer:D - adding a catalyst
Explanation:
Mitosis has 4 steps and meiosis has 5 steps so its 9 steps total here's a photo to help you if you need it
