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Fudgin [204]
3 years ago
14

The dictionary from #2 falls off the table. How much kinetic energy does it have just before it hits the floor?

Chemistry
1 answer:
lys-0071 [83]3 years ago
7 0

Answer:

um a lot

Explanation:

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How many Valence electrons does Li have?
deff fn [24]

It has a single valence electron.

3pro & 3ele - it is the single electron in shell 2.

6 0
4 years ago
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A substance has an atomic number of 80 and a mass number of 178. How many protons does this atom have? How many neutrons does it
Nitella [24]

Answer: idk

Explanation:

Idk

3 0
3 years ago
The illustration to the left represents a mixture of hydrogen ( light blue ) and iodine ( purple ) reacting to form a product. I
Ksju [112]

Answer:

1. Hydrogen Iodide

2. 6 molecules of Hydrogen Iodide

3. Iodine is the limiting reagent

Explanation:

The image of the illustration in the question has been attached:

1. The illustration represents a mixture of hydrogen ( light blue ) and iodine ( purple )

H₂ + I₂ ---> 2HI

This forms hydrogen iodide.

2. In the given illustration, 6 product molecules of Hydrogen Iodide. This is indicated in the box on the right side of the illustration.

3.  The limiting reagent is the reactant that determines how much of the products are made. It is the substance that is totally consumed when the chemical reaction is completed. In the box on the right side of the illustration, you will see that hydrogen which is indicated by blue is in excess. The limiting reagent is the one that is completely consumed which is the iodine.

8 0
3 years ago
Remember: When recording genotype, two letters are used, a capital letter (D) for the dominant trait and a lower case (d) letter
masya89 [10]
Tt. i’m not fully sure but dominant traits usually always overpower recessive so i’m pretty sure in order for a recessive trait to show both parents need to give the recessive trait in order for it to show. i mean it’s in the words dominant and recessive
8 0
2 years ago
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Compound a has a pka of 7 and compound b has a pka of 10. compound a is how many times more acidic than compound b?
Pavel [41]
Ka is the acid dissociation equilibrium constant. The larger the value of the Ka, the stronger is the acid. To find Ka from pKa, the equation is:

pKa = -log[Ka]

@pKa = 7
7 = -log[Ka]
Ka = 1×10⁻⁷

@pKa = 10
10 = -log[Ka]
Ka = 1×10⁻¹⁰

This, pKa 7 is more acidic than pKa 10. The scale factor would be:
1×10⁻⁷/1×10⁻¹⁰ = 1,000

<em>Therefore, Compound A is 1,000 times more acidic than Compound B.</em>

4 0
4 years ago
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