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Lyrx [107]
3 years ago
14

Question 8

Chemistry
1 answer:
castortr0y [4]3 years ago
5 0

Answer:

The 5 chemical changes are. 1) Tarnish, 2) Rust, 3) Dissolve, 4) Burn, 5) Bake.

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Calculate the value of the equilibrium constant, Kc, for the reaction below, if 0.208 moles of sulfur dioxide gas, 0.208 moles o
Harman [31]
First, we convert the moles of each substance into the concentration using the volume of the reactor.
[SO₃] = 0.425/1.5 = 0.283 M
[SO₂] = 0.208 / 1.5 = 0.139 M
[O₂] = 0.208/1.5 = 0.139 M
The equilibrium constant is calculated by:
Kc = [SO₃]² / [O₂][SO₂]²
Kc = (0.283)²/(0.139)(0.139)²
Kc = 29.8 = 2.98 x 10¹

The answer is C
8 0
3 years ago
Why does a person's heart rate increase during exercise?
ludmilkaskok [199]
The answer is 2 more oxygen is needed
5 0
4 years ago
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Which water usage uses the least amount of water in a year in the United States? a industry
kvasek [131]
A
Industry uses only about 18% while the others use around 70-90% of water.
5 0
3 years ago
if the central atom in a molecule is sp3 hybridized, how many different electronic geometries can it have?
jekas [21]

Tetrahedral molecular geometry is the only one that can exist for sp3 hybridized center atoms.

<h3>Which chemical contains an sp3 hybridized central atom?</h3>
  • An atom that is bound and a nonponding pair of electrons are the two different kinds of electron domains.All bonded atoms count as one electron domain on the center atom, regardless of whether they are connected by a single, double, or triple bond.
  • There are five fundamental geometries for electron domains. The core oxygen atom in the water molecule has six valence electrons.The 6 valence electrons of oxygen are arranged in hybridized sp3 orbitals, resulting in 2 paired and 2 free electrons.
  • One s orbital and three p orbitals combine to generate four sp3 orbitals, each of which has a 25% s character and a 75% p character. This process is known as sp3 hybridization.
  • An example of CO2 can be used to illustrate how lone pairs of electrons make up an SP3 hybrid orbital.We are only able to count bond pairs or lone bonds.

To learn more about sp3 refer

brainly.com/question/28359475

#SPJ4

6 0
1 year ago
What will occur when a population grows large than the carrying capacity of its environment
MissTica

Answer:

If the resources they need are not being refilled fast enough, the population will decrease.

Explanation:

If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size.

5 0
3 years ago
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