One way to ensure that scientific claims are valid is to analyze who is presenting the information: only trust information presented by those who are experts or have the proper credentials.

true

false

False

Explanation:

The person presenting the scientific claim does not matter the claim itself is what is important if a random person of the street presents a claim that is tested and found to be correct that is great but if Steven Hawkins presented a claim and it went untested because of his name it could be completely wrong but still believed which means that the proof is much more important then the name.

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.