The atoms of a substance can be determined by dividing the given mass of the substance by the molar mass. This results to moles of the substance. Then we multiply by the Avogadro's number. In this case, we divide 1 g by 58. 69 g/ mol and multiply by 6.022 x10^23 atoms / mole. The answer is 1.03 x10^22 atoms
Answer: Pentane
Explanation: According to the IUPAC(International Union of Pure and Applied Chemistry) the name of this compound will be pentane. This compound belongs to the alkane category, which has single bond between the carbon atoms. This naming is done on the basis of the number of carbon atoms and the nature of the chemical bond between the carbon atoms.
Word roots are selected based on the number of carbon atoms
1 C atom = Meth
2 C atom = Eth
3 C atom = Prop
4 C atom = But
5 C atom = Pent
6 C atom = Hex
7 C atom = Hept
8 C atom = Oct
9 C atom = Non
10 C atom = Dec
Suffixes are added based on the nature of chemical bond between the carbon atoms.
Word root + suffix (here: ane)
2.15 x 10⁻³mL
Explanation:
Given parameter:
Volume of blood sample in uL = 2.15uL
Conversion uL → mL
micro- and milli- are both prefixes of sub-units.
liter is a unit of volume of a substance.
micro - is 10⁻⁶
milli- is of the order 10⁻³
The problem is converting from micro to milli:
if we multiply 10⁻⁶ by 10³ we would have our milli;
1000uL = 1mL
2.15uL : 2.15uL x 
= 2.15 x 10⁻³mL
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Answer:
Ionic bond
Explanation:
Ionic bond:
It is the bond which is formed by the transfer of electron from one atom to the atom of another element.
Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.
For example:
Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion. Both atoms are bonded together electrostatic attraction occur between anion and cations.
Answer:
Energy = 
Joules
Explanation:
We know,
Energy(E) carried by a wave = 
where,
h - Planck's constant = 
f - Frequency of the wave.
Given,
Frequency of given wave (f) = 
Therefore from the above formula,
Energy carried by wave =
E = 
E = Joules
Therefore,
Energy carried by given wave = Joules
