Please im literly crying right now my parents are idoits, and they never help me Introduction/Purpose: Why was this topic chosen, or why is it useful?
Does the shape of an ice cube affect how quickly it melts?

PLEASE HELP 100 Points and Brainliest :(

The topic is not about glaciers it's about ice cubes not ice outside. :( (CRies)

 The shape of the ice cube does not make it melt or freeze faster. However, the about of water being froze can make it faster or the small quantity of ice being melted can make it melt faster

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

can you list the answers so i can answer