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Blizzard [7]
3 years ago
8

PLEASE ANSWER THIS I AM DOING SCIENCE AND IT SUCKS

Chemistry
2 answers:
andre [41]3 years ago
7 0

Answer:

The first sentence is the hypothesis and the second is the scientific problem.

Have a great day!

Aleks [24]3 years ago
4 0
The scientific question is “what is the growth rate of the fingerlings in 5% and 10% saline solutions?”

the other is a hypothesis
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Answer:

See explaination and attachment

Explanation:

please kindly see attachment for the step by step solution of the given problem.

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3 years ago
The Earth’s atmosphere is divided into five layers. In which layer does all life exist?
n200080 [17]

Answer:

1. troposphere

2. less dense/decreases

3. ozone

4. nitrogen

5. xylem

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5 0
3 years ago
By the reaction of carbon & oxygen , a mixture of CO &CO2 is obtained. What is the composition by mass of the mixture ob
Hatshy [7]
M(O₂)=20g
M(O₂)=32.0 g/mol
n(O₂)=20/32.0=0.625 mol

m(C)=12 g
M(C)=12.0 g/mol
n(C)=12/12.0=1.0 mol

   2C     +     O₂      →    2CO
1 mol    0.625 mol        1 mol
         0.625-0.5=0.125 mol

      2CO    +         O₂       →        2CO₂
0.250 mol       0.125 mol       0.250 mol

n(CO)=1 mol - 0.250 mol = 0.750 mol
M(CO)=28.0 g/mol
m(CO)=0.750*28.0=21.0 g

n(CO₂)=0.250 mol
M(CO₂)=44.0 g/mol
m(CO₂)=0.250*44.0=11.0 g
4 0
3 years ago
What is ionization theory​
frez [133]

Answer:

is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons, often in conjunction with other chemical changes.

6 0
3 years ago
Suppose a car sitting on a hydraulic lift exerts a downward force of 1,750 N on a piston with an area of 0.6m2. How much pressur
soldier1979 [14.2K]
<span>P = F/A = 1750/0.6 = 2,916.7 Pa</span>
6 0
3 years ago
Read 2 more answers
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