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
mote1985 [20]
3 years ago
7

3.Write the chemical equation for the reaction when methane burns in (2)

Chemistry
1 answer:
IceJOKER [234]3 years ago
5 0

Answer:

a)CH4 + O2 = CO2 + H2O

b)4CH4+5O=2CO+8H2O+2C

You might be interested in
How are scientists able to study the composion of a star that is located out of the solar system
Natasha_Volkova [10]
The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy. Today, this process uses instruments with a grating that spreads out the light from an object by wavelength. This spread-out light is called a spectrum.
I hope this helps.
5 0
3 years ago
Which statement best describes the process of making a solution by diluting a stock solution?
Bas_tet [7]
Add more solvent  to decrease the concentration.
3 0
2 years ago
Read 2 more answers
Consider the hypothetical serine protease, which shows the specificity pockets. The S1 pocket has a glutamic acid in the bottom,
BigorU [14]

Answer:

See explaination

Explanation:

Hydrophobic literally means “the fear of water”. Hydrophobic molecules and surfaces repel water. Hydrophobic liquids, such as oil, will separate from water. Hydrophobic molecules are usually nonpolar, meaning the atoms that make the molecule do not produce a static electric field.

Please see attachment for the step by step solution of the given problem.

8 0
3 years ago
name seven elements that have names and symbols that do not start with the same letter (include the symbol after the name)
viktelen [127]

Answer:

ok will do

Explanation:

5 0
3 years ago
Read 2 more answers
Suppose a 1.0 L solution contains 0.020 M in Cu(NO3)2, then 0.40 moles of NH3 are added. Assuming no change in volume, what is t
Rasek [7]

Answer:

4.6*10^{-14} M

Explanation:

Concentration of Cu^{2+} = [Cu(NO_3)_2] = 0.020 M

Constructing an ICE table;we have:

                                 Cu^{2+}+4NH_3_{aq} \rightleftharpoons [Cu(NH_3)_4]^{2+}_{(aq)}

Initial (M)             0.020          0.40                        0

Change (M)         -  x                - 4 x                       x

Equilibrium (M)  0.020 -x        0.40 - 4 x              x

Given that: K_f =1.7*10^{13}

K_f } = \frac{[Cu(NH_3)_4]^{2+}}{[Cu^{2+}][NH_3]^4}

1.7*10^{13} = \frac{x}{(0.020-x)(0.40-4x)^4}

Since x is so small; 0.40 -4x = 0.40

Then:

1.7*10^{13} = \frac{x}{(0.020-x)(0.0256)}

1.7*10^{13} = \frac{x}{(5.12*10^{-4}-0.0256x)}

1.7*10^{13}(5.12*10^{-4} - 0.0256x) = x

8.704*10^9-4.352*10^{11}x =x

8.704*10^9 = 4.352*10^{11}x

x = \frac{8.704*10^9}{4.352*10^{11}}

x = 0.0199999999999540

Cu^{2+}= 0.020 - 0.019999999999954

Cu^{2+} = 4.6*10^{-14} M

8 0
2 years ago
Other questions:
  • Write the formula and name of the compound formed from the following ionic interactions:
    9·1 answer
  • Whats the lewis dot diagram for calcium
    13·1 answer
  • Help me now, please!
    7·1 answer
  • Can someone explain to me what I'm doing wrong? 68mL was wrong as well. Selecting "tenths place" for 3a and "hundredths place" f
    9·1 answer
  • Activated charcoal is used in gas<br> masks. What physical property is<br> related to this use?
    12·1 answer
  • If 638.44g CuSO4 reacts with 240.0g NaOH, which is the limiting reactant?
    6·2 answers
  • Un isótopo de un elemento metálico tiene un número de masa de 65 y tiene 35 neutrones en su núcleo. El catión derivado de dicho
    9·1 answer
  • 1. A bacterium that can use NO3 - as a terminal electron acceptor is found to contain sulfur granules. This cell . . . A. reduce
    14·1 answer
  • Can someone please help!
    15·1 answer
  • 76.5 scientific notation
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!