Answer:
110V
Explanation:
Given parameters:
Current in the lightbulb = 0.5A
Resistance = 220Ω
Unknown:
Voltage = ?
Solution:
To solve this problem, we apply the equation derived from ohm's law;
V = IR
So,
V = 0.5 x 220 = 110V
Answer:
Option A.
Explanation:
To know which structure is correct, let us name both compound.
In naming the above organic compound, the following must be observed:
1. Locate the functional group. In this case it alkene since it has carbon to carbon double bond (C=C).
2. Locate the longest continuous carbon chain. In this case the compound is a cyclic compound with 6 carbon i.e cyclohexene.
3. Locate the substituents attached to the compound. In this case, bromine (bromo) and chlorine (chloro) are the substituents attached.
4. Locate the position of the substituents and name alphabetically counting from the double bond. In this case, bromo comes before chloro
5. Combine the above to get the name.
For option A, the name is:
4–bromo–5–chlorocyclohexene.
For option B, the name is:
3–bromo–4–chlorocyclohexene.
We can see that Option A gives the correct structure of the compound.
Answer:
the oxidation state of each atom
Answer:
0.067 M
Explanation:
Given data:
Volume of solution = 1.00 L
Mass of BaCl₂ = 14 g
Molarity of solution = ?
Solution:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles of solute / L of solution
Now we will calculate the number of moles first.
Number of moles = mass/ molar mass
Number of moles = 14 g/ 208.23 g/mol
Number of moles = 0.067 mol
Now we will calculate the molarity.
Molarity = 0.067 mol / 1.00 L
Molarity = 0.067 M ( mol/L=M)
Answer:
C
Explanation:
the sum of calories is 100. When 50 calories are lost, 50 calories is the remainder.