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svetlana [45]
3 years ago
8

What are the reactants in a chemical equation located? (20 Points)

Chemistry
2 answers:
son4ous [18]3 years ago
5 0

Answer:

D

Explanation: A P E X aproved

aalyn [17]3 years ago
3 0

on the left side of the arrow

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a weather balloon contains 8.80 moles of helium at a ppressure of 0.992 atm and a temperature os 25 C at ground level. What is t
djverab [1.8K]
We can use the ideal gas law equation to find the volume of the balloon.
PV = nRT 
where 
P - pressure - 0.992 atm x 101 325 Pa/atm = 100 514 Pa
V - volume 
n - number of moles - 8.80 mol 
R - universal gas constant  - 8.314 Jmol⁻¹K⁻¹
T - temperature in kelvin - 25 °C + 273 = 298 K
Substituting these values in the equation 
100 514 Pa x V = 8.80 mol x  8.314 Jmol⁻¹K⁻¹ x 298 K
V = 217 L
volume of balloon is 217 L
7 0
3 years ago
Draw an orbital overlap diagram to represent the bonding in ammonia, NH3.
Svetlanka [38]
NH3 is a molecule with a nitrogen atom in the middle surrounded by 3 hydrogen atoms bonded covalently. Nitrogen has 5 valence electrons so, it will form sigma bonds (sp3 hybrid orbitals) with each of the hydrogen atom. The remaining lone pair electrons will be situated above the atom. You ca look at this image I've pulled from Google.

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3 years ago
B) Explain three ways by which water can be purified in the home
frosja888 [35]

Explanation:

Water can be purified from through...

Filtration - This involves the use of filter paper to remove solid objects found in water.

Boiling - This involves keeping water at 100 deg celcius for a while through application of heat and this kills microorganisms in the water.

Addition of alum - Alum causes very fine and small particles that are suspending in water to stick together making them large enough to be removed through filtration.

Chemicals used in water treatment...

Chlorine - Chlorine is used to kill bacteria, viruses and other disease causing pathogens found in water

That's all I know...

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Which is the correct pattern of how the sizes and charges of atoms change with the addition and subtraction of electrons?
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A hope that helps sudjehshhdhsnsxj
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Two Characteristics of Gas state​
yulyashka [42]

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