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
Alexus [3.1K]
3 years ago
9

Can you plz answer this question: The ocean supply about 90 percent of the ————— water that goes inti the water cycle

Chemistry
1 answer:
vovikov84 [41]3 years ago
4 0
B evaporated not a or c
You might be interested in
Draw the lewis structure of ch3nc; fill in any nonbonding electrons. Calculate the formal charge on each atom other than hydroge
jenyasd209 [6]

A visual representation of covalent bonding which represents the valence shell electrons in the molecule is said to be a Lewis structure. The lines represents the shared electron pairs and dots represents the electrons that are not involved in the bonding i.e lone pairs.

Number of valence electrons in each atom:

For Carbon, C = 4

For Hydrogen, H = 1

For Nitrogen, N = 5

The Lewis structure of CH_3NC is shown in the attached image.

The formula of calculating formula charge = FC = VE - NE- \frac{BE}{2}   -(1)

where, F.C is formal charge, V.E is number of valence electrons, N.E is number of non-bonding electrons and B.E is number of bonding electrons.

Now, calculating the formal charge:

For C on left side:

FC = 4 - 0- \frac{8}{2} = 0

For N:

FC = 5 - 0- \frac{8}{2} = +1

For C on right side:

FC = 4 - 2- \frac{6}{2} = -1

The formula charge of each atom other than hydrogen is shown in the attached image.


6 0
3 years ago
Write your answer with correct significant figures (*no scientific notation): 847.3219 x 34.6 x 1.4560 =​
Lunna [17]

Answer:

42686.04375

Explanation:

847.3219*34.6=2317.33774 multiply this by the next number 1.4560 to get 42686.04375

3 0
3 years ago
Which of these is NOT a layer of the skin?
bagirrra123 [75]
I need the options to choose from
4 0
3 years ago
Read 2 more answers
How many grams of glucose are needed to prepare 400. g of a 2.00% (m/m) glucose solution g?
Dominik [7]
The grams   of glucose  are  needed  to  prepare  400g  of  a 2.00%(m/m)  glucose  solution  g  is  calculated  as  below

=% m/m =mass  of the solute/mass  of  the  solution  x100

let mass of   solute  be represented  by  y
mass  of solution = 400 g
 % (m/m) = 2% = 2/100

 grams  of  glucose  is  therefore =2/100 =  y/400
by cross  multiplication

100y = 800
divide   both side  by  100

y= 8.0 grams



5 0
3 years ago
When 1 mol of KBr(s) decomposes to its elements, 394 kJ of heat is absorbed. (a) Write a balanced thermochemical equation.
VladimirAG [237]

The balanced thermochemical equation is

KBr ------- K + 1/2 Br2

<h3>What is thermochemical equation? </h3>

A Thermochemical Equation is defined as the balanced stoichiometric chemical equation which includes the enthalpy change, ΔH.

The chemical equation for the decomposition of potassium bromide to its constituent elements bromine ans potassium :

KBr ----- K + Br2

The balanced thermochemical equation of the decomposition of potassium bromide to its constituent elements potassium and bromide as follows

KBr ------- K + 1/2 Br2

As the heat is absorbed in this reaction therefore, heat is positive.

Thus, we concluded that the balanced thermochemical equation is

KBr ------- K + 1/2 Br2

learn more about thermochemical equation:

brainly.com/question/2733624

#SPJ4

8 0
1 year ago
Other questions:
  • Which of the following would you predict to have a positive value for º?
    14·1 answer
  • Who identified the electron?
    15·2 answers
  • The most important commercial process for generating hydrogen gas is the water-gas shift reaction:. CH4(g) + H2O(g) → CO(g) + 3H
    6·2 answers
  • In the energy pyramid, if a primary producer is consumed by a first-level consumer, and that first-level consumer is consumed by
    12·1 answer
  • What is the value for the potential energyfor a n = 6 Bohr orbit electron in Joules?
    10·1 answer
  • Which of the following are characteristic(s) of molecules. Select all that apply. Molecules consist of two or more atoms. Atoms
    10·2 answers
  • Consider the following equivalent expressions: 38÷1312 and 38?ab What are the values of a and b? Enter the value of a followed b
    10·1 answer
  • How are mixtures and solutions different from each other?
    5·1 answer
  • How many joules are required to change 40 grams of water to steam at the boiling point?
    10·1 answer
  • B. from 52 moles of nitric acid, how many moles of silver nitrate will be produced?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!