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
grin007 [14]
3 years ago
7

Gaseous methane (CH_4) will react with gaseous oxygen (O_2) to produce gaseous carbon dioxide (CO_2) and gaseous water (H_2O). S

uppose 6.42g of methane is mixed with 49. g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Be sure your has the correct number of significant digits.
Chemistry
1 answer:
aivan3 [116]3 years ago
3 0
You ugly, you yo daddy's son. 
<span>  YAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!!!!!!!!!!
</span>Juju on that beat, okay
 ????????
You might be interested in
Determine the highest occupied energy level in the
aleksandrvk [35]
I think its B!!! (: (:
6 0
3 years ago
Write the condensed formula from left to right, starting with (CH3)x where x is a number.
pochemuha

Complete question:

Write the condensed formula from left to right, starting with (CH3)x where x is a number.

See attached image for the structure formula of the compound

Answer:

(CH₃)₂CHC(CH₃)₃ named as 2,2,3-Trimethylbutane

Explanation:

If we number the longest chain of the carbon starting from the left, we will observe that there are four carbons in the straight chain as shown in the image.

Starting from first carbon from the left of the carbon chain, at carbon number number 2, there two alkyl group, that is two methyl (CH3 is two). Also at carbon number 3, there are three alkyl group, that is three methyl (CH3 is three).

The condensed formula will be written as;

(CH₃)₂CHC(CH₃)₃

This compound is named as 2,2,3-Trimethylbutane, an isomer of Heptane

3 0
3 years ago
At an elevated temperature, Kp=4.2 x 10^-9 for the reaction 2HBr (g)---&gt; +H2(g) + Br2 (g). If the initial partial pressures o
Damm [24]

Answer : The partial pressure of H_2 at equilibrium is, 1.0 × 10⁻⁶

Explanation :

The partial pressure of HBr = 1.0\times 10^{-2}atm

The partial pressure of H_2 = 2.0\times 10^{-4}atm

The partial pressure of Br_2 = 2.0\times 10^{-4}atm

K_p=4.2\times 10^{-9}

The balanced equilibrium reaction is,

                                2HBr(g)\rightleftharpoons H_2(g)+Br_2(g)

Initial pressure    1.0×10⁻²       2.0×10⁻⁴      2.0×10⁻⁴

At eqm.            (1.0×10⁻²-2p)   (2.0×10⁻⁴+p)  (2.0×10⁻⁴+p)

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{H_2})(p_{Br_2})}{(p_{HBr})^2}

Now put all the values in this expression, we get :

4.2\times 10^{-9}=\frac{(2.0\times 10^{-4}+p)(2.0\times 10^{-4}+p)}{(1.0\times 10^{-2}-2p)^2}

p=-1.99\times 10^{-4}

The partial pressure of H_2 at equilibrium = (2.0×10⁻⁴+(-1.99×10⁻⁴) )= 1.0 × 10⁻⁶

Therefore, the partial pressure of H_2 at equilibrium is, 1.0 × 10⁻⁶

4 0
4 years ago
What mass of sodium hydroxide must be heated in order to produce 4.5 g of water?
inysia [295]

Answer:

10 g

Explanation:

5 0
3 years ago
How is it possible for helium to have 8 spectral lines when it only has 2 electrons?
neonofarm [45]

It has more lines in it compared to hydrogen emission spectrum. It is mainly because the helium atom has more electrons than a hydrogen atom. Therefore, more electrons get excited when we pass a white light beam through a helium sample, and it causes the emission of more spectral lines

5 0
3 years ago
Other questions:
  • Calculate the number of atoms in 4.8 dm^3 of neon gas at rtp
    14·1 answer
  • elect the correct answer. The elements beryllium, calcium, and strontium are all in group 2. What is the correct relationship of
    12·1 answer
  • What state has similur soil composition and structer to michigan?
    13·1 answer
  • All molecules are compounds<br> True or false
    13·1 answer
  • How many moles of hydrogen gas would be needed to react with excess carbon dioxide to produce 99.1 moles of water vapor?
    14·1 answer
  • What is the density of an object whose mass is 142.5 g and whose volume is 7.5 mL?
    5·2 answers
  • Without doing any calculations, match the following thermodynamic properties with their appropriate numerical sign for the follo
    10·1 answer
  • On a hot summer day in Florida, Sarah was having a picnic with her family. She took a glass, which had been sitting in the Sun,
    6·1 answer
  • Which statement describes the charge of an
    9·1 answer
  • Which water feature is often associated with condensation?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!