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Bond [772]
3 years ago
11

Some of the chemicals in tobacco products cause cancer. these products are called

Chemistry
1 answer:
sergij07 [2.7K]3 years ago
6 0
Carcinogens if i am not wrong
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5 0
3 years ago
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What would be the expected radius of a nucleus having 82 protons and 125 neutrons?
Luba_88 [7]

The expected radius of a nucleus having 82 protons and 125 neutrons would be 5.2 fm.

<h3>What is a nucleus in the atom?</h3>

The nuclei are incredibly tiny and dense. They are 10 thousand times smaller than an atom and have more than 99.9% of their mass. Protons, which have a positive charge, and neutrons, which have no electrical charge, make up the nucleus. Alternately, protons and neutrons make up an atom's nucleus. While neutrons have no charge but weigh the same as protons, protons have a positive charge that is equivalent to the orbiting electrons. Based on the 1909 Geiger-Marsden gold foil experiment, Ernest Rutherford identified the atomic nucleus in 1911, which is the compact, dense region made up of protons and neutrons at the heart of an atom.

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7 0
2 years ago
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Elena-2011 [213]
Question 22: conclusion
Question 23: analyze
7 0
2 years ago
How many grams of water at 25 C must be mixed in an insulated container with 250 grams of water at 93 C if the final temperature
nydimaria [60]

Answer:

Explanation

Comment

Normally you would just use m*c*delta T. But the c is the same in both cases, so you need just use m*deltaT

Givens

25 degrees

m = ?

T = 25

t = final temp = 75

93 degrees

m = 250

T = 93

t = final temp = 75

Solution

(t - 25)*m = (93 - t) * 250                   Remove the brackets

75*m - 25m = 93*250 -  250*75      Combine the right

m(75 - 25) = 23250 - 250*75

50 m = 23250 - 18750                      Combine

50 m = 4500                                      Divide both sides by 50

50*m/50 = 4500/50

m = 90

Answer: 90 grams are needed.

7 0
2 years ago
Problems: Upload your work for all 5 questions when you are on the last question.
elena-14-01-66 [18.8K]

Answer:

1.08 M

Explanation:

6 0
3 years ago
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