- emission spectrum is the amount of electromagnetic radiation of each frequency it emits when it is heated (or more generally when it is excited). When the electrons in the element are excited, they jump to higher energy levels.
- Absorption spectrum is a technique used to find out what makes up a sample of a substance – in other words, a chemical analysis.
R is the mixture formed by adding 5 g of sugar to 1 L of water.
<h3>Which is a mixture?</h3>
A mixture is an impure substance made up of two or more substances which are miscible or immiscible in each other.
Dissolving the sugar in the water makes a homogenous mixture and once dissolved a solution is made by the combination of a solute (sugar) and solvent (water).
Hence, R is the mixture formed by adding 5 g of sugar to 1 L of water.
Learn more about the mixture here:
here:brainly.com/question/17247700
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Bottle 1 is a compound bottle 2 is element bottle 3 is a element bottle 4 is a element
Answer: 
Explanation:
- The atomic mass of nitrogen is 14.0067 g/mol.
- The atomic mass of oxygen is 15.9994 g/mol.
This means the molecular mass of nitrogen dioxide is 
g/mol.
Dividing this molecular mass of the compound we need to find, we get that
.
So, the final answer is 
Answer:
False
Explanation:
Forms of a given element that have a different number of neutrons are called isotopes.
