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Lubov Fominskaja [6]
2 years ago
13

What do all viruses have in common? Choose more than one answer.

Chemistry
1 answer:
vitfil [10]2 years ago
7 0

Answer:

1, 3, 4, and 5

Explanation:

the number would be the dot order!

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Answer- C (water and carbon dioxide)
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What is the atomic number of the yet-undiscovered element directly below francium ( Fr) in the periodic table?
kakasveta [241]
The atomic number of Francium is 87.
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Using are organic compounds made by living things
DaniilM [7]

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7 0
1 year ago
Given 700 ml of oxygen at 7 ºC and 106.6 kPa pressure, what volume does it take at 27ºC and 66.6 kPa pressure
o-na [289]

Answer:

The volume is 1.2L

Explanation:

Initial volume (V1) = 700mL = 0.7L

Initial temperature (T1) = 7°C = (7 + 273.15)K = 280.15K

Initial pressure = 106.6kPa = 106600Pa

Final temperature (T2) = 27°C = (27 + 273.15)K = 300.15K

Final pressure (P2) = 66.6kPa = 66600Pa

Final volume (V2) = ?

To solve this question, we need to use combined gas equation which is a combination of Boyle's law, Charles Law and pressure law.

(P1 × V1) / T1 = (P2 × V2) / T2

solve for V2 by making it the subject of formula,

P1 × V1 × T2 = P2 × V2 × T1

V2 = (P1 × V1 × T2) / (P2 × T1)

V2 = (106600 × 0.7 × 300.15) / (66600 × 280.15)

V2 = 22397193 / 18657990

V2 = 1.2L

The final volume of the gas is 1.2L

6 0
3 years ago
In the periodic table how many elements could be classified as metals in group IV?
lord [1]
4 elements are classified in group 4 like titanium, zirconium, hafnium and ruthorfordium
8 0
3 years ago
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