Answer:
Statement B "Elements at the right side of the period are smaller in size" is not true.
Explanation:
Going through the rows of the elements in the period the size of the elements get continuously bigger.
Answer:
2-hexanone
Explanation:
First, we'll begin by:
1. Locating the longest continuous chain i.e haxane
2. Determine the functional group in the compound. The functional group in ketone (C=O). This changes the name from hexane to hexanone i.e replacing the -e in at the end in hexane with -one to make it hexanone.
3. Give the functional group the lowest low count. In doing this, we'll start counting from the left. The functional group is at carbon 2.
Note: no substitute group is attached.
Now, in naming the compound, we must indicate the position of functional group as illustrated below:
The name of the compound is:
2-hexanone
Answer:
luh danm hahahahahahhaahah
Answer:
the direction of the object
Explanation:
Answer:
(a) 
(b) 
(c) 
Explanation:
Hello,
In this case, given the molality in mol/L, we can compute the required units of concentration assuming a 1-L solution of acetonitrile and lithium bromide that has 1.80 moles of lithium bromide:
(a) For the molality, we first compute the grams of lithium bromide in 1.80 moles by using its molar mass:
Next, we compute the mass of the solution:
Then, the mass of the solvent (acetonitrile) in kg:
Finally, the molality:
(b) For the mole fraction, we first compute the moles of solvent (acetonitrile):
Then, the mole fraction of lithium bromide:
(c) Finally, the mass percentage with the previously computed masses:
Regards.
