Answer:
They are used because of preference or convenience, not necessity. These scales came about historically when there were no standards to calibrate a thermometer against. The Fahrenheit scale used the temperature of the coldest thing then known for its zero, which was salty ice.13-Oct-2019
<u>1) find molar mass of CH₄</u>

<u>2) determine moles of CH₄</u>

<u>3) multiply by avogadro's number</u>

It means it’s neutrally charged! Protons are positive while electrons are negative, so they balance each other out. Neutrons are neutral so they don’t weigh in.
Q1. A.
Q2. Nitrous oxide
Hope this helped ♥︎
Density = mass/volume
Therefore,
Density = 60g/30cm