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svetoff [14.1K]
3 years ago
9

After a category 5 hurricane, 200 kilometers of beach on the West coast of Florida had disappeared.

Chemistry
1 answer:
Vikentia [17]3 years ago
6 0

Answer:

It will take a really good term to be able to understand 5 hurricans and it is actially really difficult but I hope you get it.

Explanation:

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What type of energy does a rock resting on top of the hill have?
GenaCL600 [577]
C is the answer to the problem
4 0
3 years ago
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Helpppp meee plzzzzz
Firdavs [7]

Answer:

11 1/2 cm I think lol

Explanation:

it is in between the 11 and 12 mark

7 0
3 years ago
The atomic mass of chlorine is 17 give the electron configuration for a neutral atom of chlorine
Nana76 [90]
1s²2s²2p⁶3s²3p⁵

Explanation:
In writing the first two electrons will go in the 1s orbital.
Since 1s can only hold two electrons the next 2 electrons for chlorine go in the 2s orbital. 
The next six electrons will go in the 2p orbital.
The p orbital can hold up to six electrons.
 We'll pull six in the 2p orbital  and then put the next two electrons in the 3s.
Since the 3s is now full we'll move to the 3p where we'll place the remaining five electrons.

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5 0
3 years ago
In a physical change the make up of matter is changed.<br> O True<br> O False
n200080 [17]

Answer:

yes it is true

Explanation:

evaporation occurs when burning liquid water changes into gas.

6 0
3 years ago
An unknown compound contains only C , H , and O . Combustion of 5.60 g of this compound produced 13.7 g CO2 and 5.60 g H2O . Wha
son4ous [18]

Answer:

Empirical formula of compound  is C₄H₈O

Explanation:

Given data:

Mass of compound = 5.60 g

Mass of CO₂ = 13.7 g

Mass of H₂O = 5.60 g

Empirical formula of compound = ?

Solution:

Percentage of C:

13.7 g/5.60 g × 12/44× 100

2.45×0.273× 100 = 66.9%

Percentage of H:

5.60 g/ 5.60 g × 2.016/18 × 100

11.2%

Percentage of O:

(66.9% + 11.2%) - 100 = 21.9%

Grams atom of  C , H, O

66.9/12 = 5.6

11.2 / 1.008 = 11.11

21.9 / 16 = 1.4

Atomic ratio:

           C                 :               H           :              O

           5.6/1.4         :            11.11/1.4    :            1.4/1.4

              4                :               8            :               1

Empirical formula:

C₄H₈O

7 0
4 years ago
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