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denis23 [38]
2 years ago
15

!! PLEASE NO COPY AND PASTE FROM THE INTERNET !! how are wedge ( a simple machine object ) used in the real world

Chemistry
1 answer:
natima [27]2 years ago
5 0
An example of a wedge in the real world court be an axe used to split things apart or something like a nail holding things together because the end of an axe and a nail have a wedge that is used to perform the tasks they are used for.
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5. The element copper has naturally occurring isotopes with mass numbers of 63
natali 33 [55]

Answer:

63.616

Explanation:

DATA

1. first atomic mass;m1=63

  1. second atomic mass;m2=65
  2. first percentage;p1= 69.2%
  3. second percentage me;p2=30.8%
  4. average mass;avg= ?

SOLUTION

avg=<u> (m1)(p1) + (m2)(</u><u>p2</u><u>)</u>

100

avg= <u>(63)(69.2) + (65)(30.8)</u>

100

avg= <u>4</u><u>3</u><u>5</u><u>9</u><u>.</u><u>6</u><u> </u><u>+</u><u> </u><u>2</u><u>0</u><u>0</u><u>2</u>

100

avg= <u>6361.6</u>

100

avg= 63.616

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Answer:

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Explanation:

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Negatively charged particles within the atom are called what?
Ivahew [28]
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A paint chip is placed in ethanol and curls what type of paint is it
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Explanation:

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What is the charge on an atom with an equal number of protons and electrons?
dexar [7]

Answer: the answer is a netrual bond

Explanation: a netural bond happens when the number of electrons are the same as the number of protons.

7 0
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