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Oxana [17]
3 years ago
8

Which of the following is not an element that makes up all living organisms?

Chemistry
1 answer:
Bess [88]3 years ago
8 0

Answer: Rubidium is correct

Explanation: The six most common elements in living things are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. Atoms of these elements combine and form thousands of large molecules. These large molecules make up the structures of cells and carry out many processes essential to life.

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How much energy is released when 65.8 g of water freezes
Delvig [45]

The amount of energy released is calculated by the product of heat of fusion and mass. The formula of amount energy released is given by: q= L\times m                (1)

Here,  

q is amount of energy released L is heat of fusion (334 J/g) m is mass of water Put all the given values in equation (1)

q= 334 J/g \times 65.8 g

q= 21977.2 Joules ≅ 21977 Joules

q= 21977 Joules

Thus, amount of energy released is 21977 Joules


6 0
3 years ago
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Imagine a substance that is a red, shiny solid at room temperature, with a melting point of 115 °C. It is brittle and a poor con
AlexFokin [52]

Explanation:

Metals and non-metals can be identified either by their position in the periodic table or by their properties.

he metal elements are found on the left hand side of the periodic table, and the non-metal elements are found on the right. You can imagine a zig-zag line, starting at B-Al-Si, separating metals from non-metals.

3 0
3 years ago
If you wanted to find a sample of fermium,which has an atomic mass of 100,where would i look???
frutty [35]

If you wanted to find a sample of fermium,which has an atomic mass of 100 I would look deep under the earth

8 0
3 years ago
Which one of the following is smallest in size
mario62 [17]
F- is the smallest because it accepts 1 electron 2 make its atomic number 10 making it have jst 2 orbitals but O²-,N³- and Na have their atomic number to be 18,17 and 11 respectively with 3 orbitals..
hope this helps *winks*
6 0
3 years ago
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Calculate the hydrogen ion concentration in a 3.4 x 10-3 M<br> solution of KOH.
notsponge [240]

Explanation:

KOH→K {}^{ + }  + OH {}^{ - }  \\ [OH {}^{ - } ] = 3.4 \times  {10}^{ - 3}  \\ k _{w} = [OH {}^{ - } ] [H {}^{  + } ]  \\ 1 \times  {10}^{ - 14}  = 3.4 \times  {10}^{ - 3}  \times [H {}^{  +  } ]  \\ [H {}^{  +  } ]  = 2.94 \times  {10}^{ - 12}  \: M

7 0
2 years ago
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