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malfutka [58]
3 years ago
15

1. Solid fossil fuel formed from _____________ remains. Produces energy when _____________.

Chemistry
1 answer:
wolverine [178]3 years ago
7 0
Organisms and burned
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Calculate the mass of water produced when 1.36 g of butane reacts with excess oxygen.
ANTONII [103]

Answer:

Mass of water produced= 1.8 g

Explanation:

Given data:

Mass of water produced = ?

Mass of butane = 1.36 g

Mass of oxygen = excess

Solution:

Chemical equation:

2C₄H₁₀ +13 O₂       →   8CO₂ + 10H₂O

Number of moles of butane:

Number of moles = mass/molar mass

Number of moles = 1.36 g/ 58.12 g/mol

Number of moles = 0.02 mol

Now we will compare the moles of butane with water.

                 C₄H₁₀         :        H₂O

                  2              :           10

                 0.02          :         10/2×0.02 = 0.1 mol

Mass of water produced:

Mass = molar mass × molar mass

Mass = 0.1 mol × 18 g/mol

Mass = 1.8 g

6 0
3 years ago
PLEASE HELP ME! CHEMISTRY!
raketka [301]

Answer:

No it is not balanced

Explanation:

CaCl2 + 2NaHCO3 → CO2 + CaCO3 + H2O + 2NaCl

Hope this helps

8 0
3 years ago
Starting from position 3,5 go west 7 , then south 7, then east 4 what’s your ending point?
Vsevolod [243]

Answer:

-1, -2

Explanation:

West is left south is down east is right

5 0
3 years ago
What type of van der Waals interactions occur between molecules
BigorU [14]

Given what we know, we can confirm that the type of van der Waals interactions that occur between molecules of O2, SCl2, and CH4 in liquids of these substances are the presence of <u>London dispersion forces</u>.

<h3>What are London dispersion forces?</h3>
  • They are a force of attraction between atoms.
  • They are generated by electrostatic attraction.
  • These forces are common between atoms in close proximity and occur often when compounds have a symmetrical distribution of atoms.
  • They are generated by the formation of temporary dipoles.

Therefore, given the symmetry of the atoms disposition in these compounds and the temporary dipoles generated by the atoms being in close proximity, we can confirm that the van der Waals forces present in each compound are London dispersion forces.

To learn more about van deer Waals forces visit:
brainly.com/question/13201335?referrer=searchResults

7 0
2 years ago
What reactants form a combustion reaction?
blsea [12.9K]

<u>Answer</u><u>:</u>

Hydrocarbon and oxygen

<u>Explanation</u><u>:</u>

"a substance reacts with oxygen gas, it must involve O² as one of the reactants."

Using this, we can confirm Hydrocarbon and oxygen is a valid one.

6 0
3 years ago
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