Explain four ways that ionic and covalent bonds are different and one way they are similar

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.

Asample of sea water contains 6.28g of sodium chloride per litre of solution. how many milligrams of sodium chloride would be contained in 15.0ml of this solution?

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating