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Stels [109]
4 years ago
12

Many scientists have contributed to the current accepted atomic model. Which of the following would be a reasonable description

of this current atomic model?
A. The model has changed very little over its entire history.
B. The model gradually changed as new scientific data was gathered.
C. The model is virtually complete and is unlikely to change much.
D. The model quickly and rapidly changed until technology caught up.
Chemistry
2 answers:
xenn [34]4 years ago
6 0
<span>B. The model gradually changed as new scientific data was gathered.</span>
wel4 years ago
4 0

The answer I got was B. <em>"The model gradually changed as new scientific data was gathered. "</em>

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What receives the most solar radiation over the course of a year ?
castortr0y [4]

the Equator receives the most solar energy

7 0
3 years ago
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The air we breathe contains different individual gases (mostly nitrogen and oxygen). Which of the following correctly describes
shusha [124]

Answer:

A. Mixture

Explanation:

Our air has a group of gases. For example, you said nitrogen & oxygen, Which is significantly a mixture.

5 0
3 years ago
Carbohydrates make up 75% of the mass of dried plant material. Cotton is at least 95% carbohydrate. Why do humans not include co
Darina [25.2K]

Answer:

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4 0
3 years ago
What is represented by this notation
hodyreva [135]

Answer:

you are right

Explanation:

because that electron can complete the Cl

6 0
3 years ago
A metallurgist reacts 260.0 grams of 80.0% by mass silver nitrate solution with an excess of copper metal.
wariber [46]

Answer:

132 g

Explanation:

Given data:

Mass of silver nitrate react = 260 g/100×80 = 208 g

Mass of silver metal produced = ?

Solution:

Chemical equation:

Cu + 2AgNO₃  →  2Ag + Cu(NO₃)₂

Number of moles of AgNO₃:

Number of moles = mass/molar mass

Number of moles = 208 g/ 169.87 g/mol

Number of moles = 1.22 mol

Now we will compare the moles of silver with solver nitrate from balance chemical equation.

            AgNO₃       :            Ag

                 2           :              2

                1.22        ;         1.22

Mass of Ag:

Mass = number of moles × molar mass

Mass = 1.22 mol × 107.8682 g/mol

Mass = 132 g

7 0
3 years ago
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