Answer:
- <u><em>B. Structural</em></u>
Explanation:
The <em>atomic </em>or molecular <em>formula </em>represents each kind of atom by its chemical symbol and the number of each kind of atom by a subscript, but it does not show how they are connected. Thus, many different compounds have the same atomic or molecular formula.
The <em>skeletal formula</em> is a kind of abbreviated molecular formula in which the carbon and hydrogen atoms are not indicated but are understood. The skeletal formula shows the chain, the double and triple bonds, and the atoms different to carbon and hydrogen. Each vertex on the chain represents on carbon atom, and the hydrogen atoms (not shown) are the needed to complete the four valence electrons of each carbon atom.
The<em> structural formula </em>shows each atom, using the chemical symbol, and how they are connected in the compound, i.e. the bonds, using short lines.
For instance, the structural formula for the simplest organic compound, methane, CH₄, is:
H
|
H - C - H
|
H
In chemistry, yes...yes it is.
Answer:
<h3>The answer is 1.04 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula
From the question
mass of coke = 21.36 g
volume = 20.5 mL
So we have
We have the final answer as
<h3>1.04 g/mL</h3>
Hope this helps you
Answer: There are 
atoms of hydrogen are present in 40g of urea, 
.
Explanation:
Given: Mass of urea = 40 g
Number of moles is the mass of substance divided by its molar mass.
First, moles of urea (molar mass = 60 g/mol) are calculated as follows.
According to the mole concept, 1 mole of every substance contains 
atoms.
So, the number of atoms present in 0.67 moles are as follows.
In a molecule of urea there are 4 hydrogen atoms. Hence, number of hydrogen atoms present in 40 g of urea is as follows.
Thus, we can conclude that there are atoms of hydrogen are present in 40g of urea, .
Answer:
Intermolecular forces are weaker attractions that hold molecules or noble gas particles close together when they are in a liquid or solid form.
Explanation:
