The s 8. a) Draw atomic structure of Magnesium atom. Is magnesium
metal or non-metal. Why? (2-1 marks)
h) Whumn and gold are called elements? (2 marks)​

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.

What causes the appearance of lines in a emission spectrum