1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
forsale [732]
3 years ago
15

1

Chemistry
2 answers:
Alex777 [14]3 years ago
8 0
Answer is a) 1,2,2,1
Mariana [72]3 years ago
7 0

Answer:

Hello

The first one is correct.

Good luck

Explanation:

You might be interested in
You titrate 5.0 mL of HCl with 0.010 M NaOH. You find the end point of your titration occurs when 12.0 mL of NaOH has been added
leonid [27]

Answer:

The total volume of the solution at the end point of the titration is 17.0 mL

Explanation:

First we will write a balanced chemical equation for the reaction between HCl and NaOH.

HCl + NaOH    →    NaCl + H₂O

This means 1 mole of HCl will react with 1 mole of NaOH to give 1 mole of NaCl and 1 mole of H₂O

From the question,

Concentration of acid (HCl), C_{A} = ??

Volume of acid (HCl), V_{A} = 5.0 mL

Concentration pf base (NaOH), C_{B} = 0.010 M

Volume of base (NaOH), V_{B} = 12.0 mL

To determine the Concentration of acid, C_{A}

From,

\frac{C_{A}V_{A}  }{C_{B}V_{B}  } = \frac{n_{A} }{n_{B} }

Where n_{A} is the mole ratio of acid

and n_{B} is the mole ratio of base.

The concentration of the acid used can be determined from the above formula.

But, we are asked to find the total volume of the solution at the end point of the titration

The total volume of the solution will be the sum of the volume of HCl that reacted and volume of NaOH that reacted.

Hence, The total volume of the solution = V_{A} + V_{B}

= 5.0 mL + 12.0 mL

= 17.0 mL

Hence, the total volume of the solution at the end point of the titration is 17.0 mL

6 0
3 years ago
What is the oxidation number of Gallium?
love history [14]

Answer:

+3

Explanation:

Sorry, I don't have one for now. I remember answering this a while ago, but I don't remember the exact reason why it's 3+.

5 0
4 years ago
Read 2 more answers
(c)
serg [7]

Answer:

Substance E does not conduct electricity in both solid and molten states because of very low melting and boiling points.

In both solid and molten state free electrons are required to conduct electricity. substance E has low boiling and melting point which means substance will have relatively weak bonds. Because of weak bonds substance E might not have much free electron in its outermost shell that can cause the electric current by their coordinated movement.

Hence, substance E is unable to conduct in both melting and molten state.

3 0
3 years ago
What are the limitations of J.J. Thomson's model of the atom?​
andrew11 [14]

Explanation:

thanks for the points big man

6 0
3 years ago
23 For a reaction at equilibrium, which change can increase the rates of the forward and reverse reactions?(1) a decrease in the
Anna [14]
"<span>(4) an increase in the activation energy of the forward reaction" is the correct answer from the list but it should be noted that this is not always the case. </span>
8 0
3 years ago
Other questions:
  • What are 2 half reactions for the reaction of glucose with Benedict’s reagent?
    12·1 answer
  • I need help with math! <br>4.8 pints = ___ galons<br>​
    14·1 answer
  • A scientist observes several metals and records the followinv data.which of the data sets represents qualitative data?A The máss
    10·1 answer
  • Within the rock cycle, a metamorphic rock could become an igneous rock by going through which steps and in what order?
    14·2 answers
  • I need help on 6a and 6b
    6·1 answer
  • If 27.3 mL of 0.293 M HBr solution completely neutralizes 42.6 mL of NH3, what is the concentration of the NH3 solution? NH3 + H
    7·2 answers
  • What is the ratio of H+ ions to OH– ions at a pH = 11? 100000000 :1, OR 1:
    14·1 answer
  • Can someone help me please?
    7·2 answers
  • How many moles of KCIO3 must be consumed to create 4.5 moles of KCI
    5·1 answer
  • Which mixture would be easiest to separate based on the size of the particles? A. Oil and water B. Vinegar and water C. Sugar an
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!