The answer is mixture. A mixture is a substance that is composed of a combination of different elements that are not chemically combined (and can be physically separated). The troposphere is the lowest layer of the earth’s atmosphere and where the weather condition occurs. This means the air is mixed with water vapor (that form clouds) and other impurities such as dust and aerosols.
B. Counting individuals because it is the easiest way to collect information and does not require any other people to collect
Answer:
So CO2 = 4 + 6(2) = 16. So, total valence electrons are 16. Carbon is the least electronegative that means it stays at the center. So, put the Carbon in the middle and then set the oxygen either side of that!
Explanation:
Cosmology is the study of the grand scale of the universe. You need astronomical observation because then there would be no proof to cosmological theory.
<u>Answer:</u> The molarity of solution will be 0.049 M
<u>Explanation:</u>
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:
![\text{Molarity of solution}=\frac{\text{Given mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (L)}}](https://tex.z-dn.net/?f=%5Ctext%7BMolarity%20of%20solution%7D%3D%5Cfrac%7B%5Ctext%7BGiven%20mass%20of%20solute%7D%7D%7B%5Ctext%7BMolar%20mass%20of%20solute%7D%5Ctimes%20%5Ctext%7BVolume%20of%20solution%20%28L%29%7D%7D)
We are given:
Given mass of sodium chloride = 10 g
Molar mass of sodium chloride = 58.44 g/mol
Volume of solution = 3.50 L
Putting values in above equation:
![\text{Molarity of NaCl}=\frac{10 g}{58.44g/mol\times 3.50}\\\\\text{Molarity of NaCl}=0.049M](https://tex.z-dn.net/?f=%5Ctext%7BMolarity%20of%20NaCl%7D%3D%5Cfrac%7B10%20g%7D%7B58.44g%2Fmol%5Ctimes%203.50%7D%5C%5C%5C%5C%5Ctext%7BMolarity%20of%20NaCl%7D%3D0.049M)
Hence, the molarity of solution will be 0.049 M