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Zigmanuir [339]
3 years ago
10

How can a scientist prevent bias in a scientific investigation

Chemistry
1 answer:
BaLLatris [955]3 years ago
5 0
They must make sure that all things pointed out are fact, not opinion.
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7) Calculate the number of moles of Chlorine gas if 50.0L of the gas is at 0.50atm of pressure at 400K.
Ostrovityanka [42]

Answer:

so i never did this befor so i am sorry hope you get the answer

Explanation:

7 0
3 years ago
The calvin cycle and the krebs are referred to as cycles of chemical reactions because they
Schach [20]

Answer:

The options are

a. occur inside organelles. b. start over continually. c. are part of the carbon cycle. d. allow energy to flow in ecosystems.

The answer is b. Start over continually

Explanation:

The two cycles involves a continuous process as long as the reactants are present under suitable conditions. The cycle happens all the time due to it being necessary to produce important products all the time for the body system.

A good example involves the existing Carbon dioxide and water reacting together to get converted into substance that could provide energy (ATP and NADH) such as Glucose.

8 0
3 years ago
When a 6.00 g sample of KBr is dissolved in water in a calorimeter that has a total heat capacity of 2.71 kJ ⋅ K − 1 , the tempe
Umnica [9.8K]

Answer:

Molar heat enthalpy of KBr = -19.89 kJ/mol

Explanation:

Change in temperature (Δt) = 0.370 K

Heat capacity = 2.71 kJ ⋅ K^-1

Heat absorbed by calorimeter = heat capacity × change in temperature

                                               = 2.71× 0.370

                                               = 1.0027 kJ

Molar mass of KBr = 119 g/mol

No. of moles of KBr = 6.00/119

                               = 0.0504 mol

Heat absorbed by the calorimeter is given by KBr.

Now calculate the heat released by per mol of KBr as follows:

Heat released by per mol of KBr = 1.0027 kJ / 0.0504 mol

                                                   =19.89 kJ/mol

Heat is released therefore, sign will be negative.

Molar heat enthalpy of KBr = -19.89 kJ/mol

4 0
3 years ago
The explosions that take place during a fireworks show are an example of which of the following?Image of fireworks exploding in
babymother [125]
Chemical change
:)
hope this helps
4 0
3 years ago
Read 2 more answers
The following chemical equation is not balanced: CO2 + H2 CH4 + H2O When this chemical equation is correctly balanced, what is t
svet-max [94.6K]
The answer is B.2

CO2+4H2 -> CH4 +2H2O
6 0
3 years ago
Read 2 more answers
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