WILL MAKE BRAINLIEST
1. A balloon is dunked into a tank of cold water. How will this affect the size of the balloon?
A. it will shrink.
B. it will grow

2. When a sample of gas is cooled, the particles of gas .
A. slow down
B. speed up

1. A it will shrink.

2. A slow down

elements

explanation:

yes the other ones are right just show me a pic of ur face cuz u look hot

- 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