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Montano1993 [528]
3 years ago
15

A(n) _____ refers to two or more atoms held together by covalent bonds. a(n) _____ refers to two or more atoms held together by

covalent bonds. shell isotope community molecule ion
Chemistry
1 answer:
jarptica [38.1K]3 years ago
8 0
I believe the correct answer is the fourth option. A molecule refers to two or more atoms held together by covalent bonds. These atoms could be the same element or different elements. The bonding of the atoms would result to a neutral charge or a charge of zero. Examples are O2, H2O, HCl.
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i dont know ask the man behind the man

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Please help!!<br><br>Show the electronic configuration of magnesium atom​.
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Explanation:

Magnesium has atomic number 12. It will be distributed in K, L, M shell in the following way:

K shell can accommodate a maximum of 2 electrons.

L shell can accommodate a maximum of 8 electrons and

M shell will accommodate 2 electrons

So the configuration becomes 2, 8,3

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Describe two uses of surfactants. At least one must be something that was not described in the passage. For each example, explai
notka56 [123]
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A bubble of helium gas has a volume of 0.65 L near the bottom of a large
Flura [38]

Answer:

0.73L

Explanation:

The following data were obtained from the question :

V1 = 0.65 L

P1 = 3.4 atm

T1 = 19°C = 19 + 273 = 292K

V2 =?

P2 = 3.2 atm

T2 = 36°C = 36 + 273 = 309K

The bubble's volume near the top can be obtain as follows:

P1V1 /T1 = P2V2 /T2

3.4 x 0.65/292 = 3.2 x V2 /309

Cross multiply to express in linear form as shown below:

292 x 3.2 x V2 = 3.4 x 0.65 x 309

Divide both side by 292 x 3.2

V2 = (3.4 x 0.65 x 309) /(292 x 3.2)

V2 = 0.73L

Therefore, the bubble's volume near the top is 0.73L

8 0
3 years ago
Help me pls its chemistry
saul85 [17]

B to C:-

  • The temperature remains constant from B to C in any time interval .
  • Looking at the graph there is BC || x axis.
  • Hence temperature remains unchanged.

E to D:-

  • Here also the temperature remains constant.
  • As we can see ED|| x axis
8 0
3 years ago
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