Describe soda on the effect of baking stomach contents with ph4

What is important to study for nios grade 12 chemistry? i have only one month left.

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent