Question 14 2 pts
what type of reaction is shown here?

2 rbno3 + bef2 image result for right arrow be(no3)2 + 2 rbf

group of answer choices

double replacement

single replacement

synthesis

decomposition

combustion

Double replacement :)

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.