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olasank [31]
3 years ago
7

Pablo wants to enter the science fair. Which question could be answered through scientific investigation?

Chemistry
2 answers:
Oliga [24]3 years ago
7 0

Answer:

Hello

Explanation:

utd847dcpyc08td0

Ilya [14]3 years ago
7 0
What’s the question?
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Why is it important to classify living organisms? The DNA of organisms may be more easily analyzed. Organisms may survive longer
postnew [5]

Answer:

All living things are organized into groups by scientists as they are identified. Living things organized into particular groups have common characteristics. Overall, the reason scientists classify living things is to understand the relationships between different organisms

Explanation: Naruto

7 0
3 years ago
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16. A sample of nitrogen gas,
Lana71 [14]

find mol of N2 present using gas law equation

PV = nRT

P = pressure = 688/760 = 0.905 atm.

V = 100mL = 0.1L

n = ???

R = 0.082057

T = 565+273 = 838

Substitute:

0.905*0.1 = n*0.082057*838

n = 0.0905 / 68.76

n = 0.00132 mol N2

Molar mass N2 = 28 g/mol

0.00132 mol = 0.00132*28 = 0.037g N2 gas

4 0
3 years ago
SOME ONE HEEEEELLLLPPPPPPPP PLEAAASEEE
stellarik [79]

Answer:

look up chemical board it will help you

Explanation:

6 0
3 years ago
Protons and neutrons are found in the nucleus. these two types of charges are referred to collectively as _____
solmaris [256]

Answer:

Nucleon

Explanation:

4 0
3 years ago
On a trip of 555 miles, an automobile consumed 55.5 gallons of gasoline costing $4.55 per gallon.
bagirrra123 [75]

Answer:

0.455

Explanation:

555/55.5 mean 10 miles per gallon, take the price per gallon and divide it by 10. 4.55/10

5 0
3 years ago
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