1kg is 1,000 grams plus .5 is 1.5 kg
<u>0.4 mol of </u>
molecules has larger mass than 0.4 mol of O atoms
<h3>What are molecules?</h3>
The smallest component of a substance that possesses both its chemical and physical characteristics. One or more atoms make up molecules.
They may have the same atoms (for example, an oxygen molecule has two oxygen atoms) or different atoms if they have more than one (a water molecule has two hydrogen atoms and one oxygen atom). Biological molecules like DNA and proteins can include thousands of atoms.
the lowest recognised unit into which a pure material can be divided while retaining its chemical makeup and attributes is made up of two or more atoms.
Learn more about Molecules
brainly.com/question/1078183
#SPJ4
The answer to this question is:
<span>If the observed test value of a hypothesis test is outside of the established critical value(s), a researcher would __________.
</span><span>"Claim significant support for the hypothesis"
Hoped This Helped, </span><span>
Itsalishamariee
Your Welcome :)</span>
Density is a physical property of matter