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Vladimir79 [104]
3 years ago
10

While exploring on your grandfathers farm, you find a layer of charcoal that might represent a campfire built by Native American

s. Explain how you could find the age of the charcoal layer?
Chemistry
1 answer:
Ierofanga [76]3 years ago
8 0
Carbon Dating would tell you the age of the charcoal
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Determine the rate law, including the values of the orders and rate law constant, for the following reaction using the experimen
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The given equation: Q + X ---> Products


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What are watts and how do they work
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A watt is a unit of power.
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A sample of gas occupies a volume of 10.5 L when the pressure is 14.3 psi. Use Boyle’s Law to calculate the pressure (psi) when
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Answer: 17.6psi

Explanation:

V1 = 10.5 L

P1 = 14.3 psi

V2 = 8.55L

P2 =?

P1V1 = P2V2

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The saturation point for a solution is 45.0 grams of solute per 500 grams of solvent. If you pour 50.0 grams of
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Answer:

5.00 g  of solute  will remain undissolved at the bottom of the container

Explanation:

From the question, the solubility of the solute in the given solvent is 45.0 grams of solute per 500 grams of solvent.

Now if i pour 50.0 grams of  solute into 800 grams of solvent, it means that only 45 g will dissolve in 500 g of solvent leaving the additional 5 g undissolved.

Hence, 5 g  of solute  will remain undissolved at the bottom of the container.

3 0
3 years ago
What energy is required to move from Ca+ to Ca2+ + e−?
nataly862011 [7]

Second Ionization energy is required to move from  Ca⁺ to Ca²⁺ + e⁻. Hence, option D is correct.

<h3>What is first ionization energy?</h3>

First ionization energy: The energy needed to remove the outermost, or highest energy, an electron from a neutral atom in the gas phase.

An element's second ionization energy is the energy required to remove the outermost, or least bound, an electron from a 1+ ion of the element. Because positive charge binds electrons more strongly, the second ionization energy of an element is always higher than the first.

Let us write the reaction equation properly:

                 Ca⁺ → Ca²⁺ + e⁻

In the reaction above, we see that calcium goes from a single charge to being doubly charged by losing an electron.

Different atoms bind their valence electrons with different amounts of energy. We must supply enough energy to remove the most loosely held electrons in an atom. This amount of energy required is called ionization energy.

The first ionization energy removes the outermost electron and makes the atom to become an ion.

Hence, option D is correct.

Learn more about the ionization energy here:

brainly.com/question/16243729

#SPJ1

4 0
2 years ago
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