Answer:
A
Explanation:
There are 2 sodium atoms and 1 oxygen atom.
<u>Answer: </u>The correct answer is Silver.
<u>Explanation:</u>
Specific heat of fusion is defined as the amount of heat which is required to raise the temperature of 1 gram of a substance to 1°C. It is generally expressed in kJ/mol
We are required to find the substance which require more heat. For that we need to know the specific heat of all the substances.
The substance which have the highest specific heat, will require more heat.
The specific heat of the given substances are:
Silver = 11.3 kJ/mol
Sulfur = 1.7175 kJ/mol
Water = 5.98 kJ/mol
Lead = 4.799 kJ/mol
The specific heat of silver is the highest and hence, will require more heat.
Hence, the correct answer is silver.
Isotopes are the same elements with the same number of portions but different numbers of neutrons
For instance, the element carbon exists as several isotopes, each having the exact same number of protons (otherwise, it would no longer be carbon if the # of protons changes), and a different number of neutrons
Answer:
Here's what I get
Explanation:
(a) There will be an equilibrium between propoxide and isopropyl alcohol.
CH₃CH₂CH₂O⁻ + (CH₃)₂CHO-H ⇌ CH₃CH₂CH₂OH + (CH₃)₂CHO⁻
The isopropoxide is the more basic ion, so it will be the better base and the better nucleophile.
(b) There is always a competition between substitution and elimination.
However, the temperature is moderate, so substitution will predominate.
(c) Attack on the substrate will occur at C-3, for two reasons:
- I is a better leaving group than Br.
- C-3 is 3°, while C-1 is 1°.
(d) The reaction will be an SN1 displacement reaction. The energy/reaction coordinate diagram is below.
(e) The rate-determining step is the first step — ionization of the alkyl iodide.
(f)The rate law is rate = k[R-I]
(g) The major product will be 1-bromo-3-methyl-3-(propan-2-yloxy)pentane.
<span>2.7 g of water must be removed. The spice weighs 3g originally and 10% is the desired product, = 0.3 g. 3.0g - 0.3g is equal to 2.7 g of water that needs to be removed.</span>