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Dmitry_Shevchenko [17]
3 years ago
5

It get hotter towards the center

Chemistry
1 answer:
STatiana [176]3 years ago
8 0

Answer:

earth

Explanation:

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What is the most metallic item on the pterotic table
statuscvo [17]

Answer:

francium or cesium

7 0
3 years ago
Read 2 more answers
A block of aluminum occupies a volume of 15.0 ML and weighs 40.5 gallons what is the density
svlad2 [7]

Hello!

I'm going to have to infer that you meant "grams" and not "gallons" :-)

Anyways, to find the density, you need to the divide mass over volume (d = m/V).

Since we are given the volume being 15.0 mL, and the weight being 40.5 grams, we can find the density of the aluminum block.

40.5 grams / 15.0 mL = 2.7 g/mL

Therefore, the density of the aluminum block is 2.7 grams per milliliter.

4 0
3 years ago
Read 2 more answers
The stearic acid/hexane solution contains 0.1 g of stearic acid per 1 ml of solution. what is the molarity of this solution? g
melisa1 [442]
Stearic acid formula is CH₃(CH₂)₁₆COOH
The molecular mass of stearic acid is 284.48 g/mol
The mass of stearic acid in 1 ml of solution is 0.1 g
Therefore number of moles in 1 ml is - 0.1 g / 284.48 g/mol = 0.000352 mol
Molarity is number of moles in 1 L of solution
If 1 ml contains - 0.000352 mol
Then 1 L solution contains - 0.000352 /1 x 1000 = 0.352 mol/L
Therefore molarity is 0.352 M
8 0
3 years ago
Determine the rate of the reaction shown directly below if the rate constant k is 1.1 x 10^–2 M^–2 s^–1, the NO concentration is
Helen [10]

Answer:

I've already given an answer to your questions in your previous post. please check it

6 0
3 years ago
He resonance structures of carbon monoxide are shown below. show how each structure can be converted into the other using the cu
Ugo [173]
The two resonating structures of Carbon Monoxide are shown below.
The movement of electrons are shown by arrow.

Structure A:
                  In structure a A the formal charges of Carbon and Oxygen are zero. As Formal Charge is calculated as,

             = # of valence electron - electrons in lone pairs + 1/2 bonding                            electrons electrons

For C:
           = 4 - 2 + 4/2
           = 4- 4
           = 0

For O:
           = 6 - 4 + 4/2
           = 6- 6
           = 0

Structure B:

Formal Charge on C:

           = 4 - 2 + 6/2
           = 4- 5
           = -1

Formal Charge on O:

           = 6 - 2 + 6/2
           = 6 - 5
           = +1

4 0
3 years ago
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