Answer:
When those atoms are given energy, the electrons absorb the energy and move to a higher energy level. ... These energy levels of the electrons in atoms are quantized, meaning again that the electron must move from one energy level to another in discrete steps rather than continuously
<u>Answer:</u> The molar concentration of NaOH in the final diluted solution is 0.056 M
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:
Given mass of NaOH = 4.00 g
Molar mass of NaOH = 40 g/mol
Volume of solution = 5.00 mL
Putting values in above equation, we get:
To calculate the molarity of the diluted solution, we use the equation:
where,
are the molarity and volume of the concentrated NaOH solution
are the molarity and volume of diluted NaOH solution
We are given:
Putting values in above equation, we get:
Hence, the molar concentration of NaOH in the final diluted solution is 0.056 M
Answer: D. Circulatory System
Explanation: The circulatory system transports gases (oxygen, carbon dioxide), nutrients, and wastes found in the blood throughout the body.
C14H30 because of the formula for alkanes:
CnC2n+2
Answer:
potassium (K) and bromine (Br)
Explanation:
- Periodic table is a table of elements in terms of rows and columns in terms of their chemical and physical properties.
- Elements in the same group or columns have similar physical and chemical properties. For example, elements in the same group have the same number of valence electrons or valency.
- Elements in the same period or rows have similar number of energy levels. For example, potassium and bromine belong to the same period in the periodic table and thus have the same number of energy levels.