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vlabodo [156]
3 years ago
14

How are the ion and isotope different from the atom?

Chemistry
1 answer:
puteri [66]3 years ago
7 0
Ions have an extra or lost an electron. Isotopes have different numbers of neutrons.
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4.85 x 10^-4 tons to cups
fiasKO [112]

Answer:

2.08753919851 cups

0.464942810185139 cups

2.08753919851 cups

Explanation:

i looked it up

7 0
3 years ago
Based on this table, what do the group 18 elements have in common?_
Inessa05 [86]
Common thing is that their outmost shell is completely filled with the electrons. They are inert gases.
3 0
3 years ago
In this experiment when both crests combine they produce a __________ spot.
zvonat [6]

Answer:

meteor

Explanation:

6 0
2 years ago
Read 2 more answers
Explain the difference between ecosystem, community, and population.
Studentka2010 [4]

Out of the three you gave ecosystem is what I would call the most broad. An ecosystem includes living AND non-living things in an area

Community is all the LIVING things in an area (plants are included and I think bacteria is too, but I'm not sure)

Population is pretty narrow it just looks at specific species in one area. Population of mosquitoes doesn't include butterflies, if only looks at mosquitoes

Hope this helped!

4 0
3 years ago
A mixture of three gases has a pressure at 298 K of 1380 mm Hg. The mixture is analysed and is found to contain 1.27 mol CO2, 3.
enot [183]

Answer:

The partial pressure of Ar is 356.04 mm Hg (= 0.4685 atm)

Explanation:

<u>Step 1:</u> Data given

A mixture of three gases has a total pressure of 1380 mm Hg (=1.81579 atm) at 298 K

Moles of CO2 = 1.27 moles

Moles of CO = 3.04 moles

Moles of Ar = 1.50 moles

<u>Step 2:</u> Calculate total number of moles

Total number of moles = n(CO2)+ n(CO)+ n(Ar) = 1.27 mol+ 3.04 mol+ 1.50 mol = 5.81 moles

<u>Step 3:</u> Calculate mol fraction Ar

Mol fraction Ar = 1.50 mol/5.81 mol = 0.258

<u>Step 4</u>: Calculate partial pressure

1380 mm Hg * 0.258 moles Ar = 356.04 mm Hg = 0.4685 atm

The partial pressure of Ar is 356.04 mm Hg (= 0.4685 atm)

8 0
3 years ago
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