Answer:
A) H2O > HCCH > NH3 > CH3CH3
Explanation:
H2O is known as a neural compound which a pH close to 7.0. This however makes it more acidic due to it having the lowest pH when compared to the others in the option.
The other options however have their acidic strength as follows: HCCH > NH3 > CH3CH3. This explains why the pattern of decreasing acidic strength is H2O > HCCH > NH3 > CH3CH3
Answer:
If you can’t find homework answers by yourself, turn to our experts to get professional response in any academic field. Even being good at all subjects, you may also be trapped for hours with one of those tricky questions. So, when there are some points needed to be explained, we offer you our help. No matter whether you have questions in in math, physics, programming, economics, chemistry, biology or English, post them here and find a well-formulated answer from an expert within a short time. You may be surprised, but we help with homework answers for free if they require brief explanation. After the answer is found, it is published on the Homework Answers page so that everybody can see it and get similar help. However, if your question is over certain volume and complexity, it should be submitted as the task for evaluation.
Use filters to display the questions to a particular subject or section. By entering your e-mail in the “Search” box you can browse the questions posted exclusively by you. Do not worry if you cannot find your question in the list right after it has been submitted; every question is being checked by a moderator and appears published only after it is accepted.
Explanation:
Answer:
Yes, Mass is conserved.
Explanation:
Every chemical reactions obey the law of conservation of mass. The law of conservation of mass states that in chemical reactions, mass is always constant.
Equation:
2Na + Cl₂ → 2NaCl
From the equation above, one can observe that the reaction started using 2 atoms of Na and it produced 2 atoms of the same element in NaCl. A molecule of Cl produced 2 atoms of Cl in the NaCl
Design a simple experiment to support your answer:
Aim: To demonstrate the law of conservation of mass
One Na atom weighs 23g
Two Na atom will weigh 2 x 23 = 46g
1 atom of Cl is 35.5g
1 molecule of Cl containing two atoms of Cl will weigh 2 x 35.5 = 71g
Total mass of reactants = mass of 2Na + 1Cl₂ = (46 + 71)g = 117g
On the product side, Mass of 1 NaCl = 23+ 35.5 = 58.5g
Two moles of NaCl will give 2 x 58.5g = 117g
Since the mass on both side is the same, one can say mass is conserved.
Answer: A, C, E
Explanation: PLATO. all testable questions.
Answer:
The molarity of the solution is 1.1 
Explanation:
Molarity is a measure of the concentration of that substance that is defined as the number of moles of solute divided by the volume of the solution.
The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:
Molarity is expressed in units
In this case
- number of moles of solute= 0.564 moles
- volume= 0.510 L
Replacing:
Solving:
molarity= 1.1
<u><em>The molarity of the solution is 1.1 </em></u><u><em></em></u>
