Answer:
The correct order it b. always add acid last.
Explanation:
Adding acid first could result on a violent reaction and heat or fumes can be generated. The best approach is to always add all the water or non-acid component first, or add a significant portion before adding the acid slowly to the mixture.
Radon is <span>not a source of air pollution related to human activities</span>
True, if you would like an example look at Indian arrow heads or early architecture all use rocks.
Answer:
29,200 cal = 1.22 E 5 joules
Explanation:
hope this helps
Atomic number shows the number of protons in an atom's nucleus. If the atomic number is 30, then it has 30 protons. The question says it is neutral, so it must have the same amount of protons and electrons.
A is the correct answer based on this.
