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
seropon [69]
3 years ago
10

Before writing the total ionic equation one should always balance the molecular equation .

Chemistry
1 answer:
gtnhenbr [62]3 years ago
4 0

Answer:

True

Explanation:

  • Inorder to balance a ionic equation you first need to balance the molecular equation.
  • First count oxidation w.
  • Break into oxidation and reduction half
  • Then balance the molecular equation of molecules except Hydrogen and Oxygen.
You might be interested in
Write the name and formula for the chemical substance which is produced in most acid-base neutralization reactions
Minchanka [31]
Acid + base gives you salt and H2O
7 0
3 years ago
A solution is prepared by mixing 200.0 g of water, H2O, and 300.0 g of
VikaD [51]

Answer:

Mole Fraction (H₂O)  =  0.6303

Mole Fraction (C₂H₅OH)  =  0.3697

Explanation:

(Step 1)

Calculate the mole value of each substance using their molar masses.

Molar Mass (H₂O): 2(1.008 g/mol) + 15.998 g/mol

Molar Mass (H₂O): 18.014 g/mol

200.0 g H₂O            1 mole
---------------------  x  ------------------  =  11.10 moles H₂O
                                 18.014 g

Molar Mass (C₂H₅OH): 2(12.011 g/mol) + 6(1.008 g/mol) + 15.998 g/mol

Molar Mass (C₂H₅OH): 46.068 g/mol

300.0 g C₂H₅OH              1 mole
----------------------------  x  --------------------  =  6.512 moles C₂H₅OH
                                         46.068 g

(Step 2)

Using the mole fraction ratio, calculate the mole fraction of each substance.

                                            moles solute
Mole Fraction  =  ------------------------------------------------
                               moles solute + moles solvent

                                                  11.10 moles H₂O
Mole Fraction  =  -------------------------------------------------------------
                               11.10 moles H₂O + 6.512 moles C₂H₅OH

Mole Fraction (H₂O)  =  0.6303

                                             6.512 moles C₂H₅OH
Mole Fraction  =  -------------------------------------------------------------
                               11.10 moles H₂O + 6.512 moles C₂H₅OH

Mole Fraction (C₂H₅OH)  =  0.3697

7 0
2 years ago
How dose heat travel between objects that are touching one another?
11Alexandr11 [23.1K]
Through the process of conduction, heat van be trnafered between two solids.
3 0
3 years ago
Read 2 more answers
Organisms that breakdown waste and dead organisms and return the raw materials to the environment is called
just olya [345]
Decomposer, decomposers include fungous, bacteria, worms. They break down trash and bad things and concert it to soil.
4 0
3 years ago
Which of the following situations most likely indicates the lowest relative humidity? situation A situation B situation C situat
statuscvo [17]

Answer:

Situation B indicates the significant depression of temperature in the wet bulb thermometer.

Answer Statement: B

Explanation:

Temperature Depression & Relative Humidity

As we can see that there are four cases to study the affect of relative humidity  on the temperature measured by thermometers, set up in different situations i.e., one is dry and the other one is dry.

As situation B describes the most admissible temperature drop in the wet bulb thermometer with a relative humidity of approximately 17% i.e., this can be the appropriate to reflect the lowest relative humidity with a fact that the relative humidity reduces with a larger count of temperature depression. Whereas, the relative humidity for other situations are resulting much higher.

5 0
3 years ago
Read 2 more answers
Other questions:
  • A gas occupies 4.00 L at 2.00 atm pressure. At what pressure would the volume be 6.00 L if the temperature remains constant?
    13·2 answers
  • What would be good types of info to put in a timeline
    7·1 answer
  • How is friction a good thing and a bad thing?
    10·1 answer
  • Group 13 elements tend to have what charge
    9·2 answers
  • Which of the following would result in being able to dissolve a greater amount of gas in a solution? ​
    11·1 answer
  • Which organism is a producer? A:owl B:mouse C:grass D:snake please somebody help me
    6·2 answers
  • A 3.8 g sample of sodium hydrogen carbonate is added to a solution of acetic acid weighing 10.8 g. The two substances react, rel
    6·1 answer
  • PLS HELP 6TH GRADE ITS ONE QUESTION ABOUT SCIENCE
    15·2 answers
  • Which of the following is not a cation?
    14·1 answer
  • How can the rate constant be determined from the rate law?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!