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dem82 [27]
4 years ago
13

Poor precision in scientific measurement may arise from

Chemistry
1 answer:
Arturiano [62]4 years ago
7 0
<span>Based on the experience of the responder, to correctly calculate measurements in real-world. Firstly is to avoid errors as much as possible. Errors are what makes your measurement invalid and unreliable. There are two types of error which is called the systematic error and the random error. Each error has different sources. Words that were mentioned –invalid and unreliable are very important key aspects to determine that your measure is truly accurate and consistent. Some would recommend using the mean method, doing three trials in measuring and getting their mean, in response to this problem.</span>
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Which of the following is TRUE about when two atoms form a bond? a. Repulsion is greater than attraction b. Neither atoms will h
mixer [17]

Answer:

b:   Neither atoms will have a full valence shell

Explanation:

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8 0
3 years ago
Ok another chemistry question! This is another question that I can)t solve
steposvetlana [31]

Hey there!

NaHCO₃

Notice that there is no subscript under Na.

That means there is one atom of Na for each molecule of NaHCO₃.

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5 0
3 years ago
Dr. Sinko places an aluminum block and a copper block in contact, and allows them to achieve thermodynamic equilibrium. Aluminum
Angelina_Jolie [31]

Answer:

The two blocks have the same temperature

Explanation:

Given;

heat capacity of Aluminum = 0.9 J/g

heat capacity of copper = 0.35 J/g

thermal conductivity of copper = 385 W/(K m)

thermal conductivity of Aluminum = 205 W/(K m)

Based on the given data, it can be concluded that;

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However, the two metallic blocks (aluminum  block and a copper block), were allowed to achieve thermodynamic equilibrium, and as a result they will have the same temperature.

Therefore, the correct statement is "The two blocks have the same temperature".

7 0
3 years ago
The picture show multiple organisms called paramecia. Although paramecia (single-celled organisms) usually reproduce asexually,
agasfer [191]

Answer:

It means that the paramecium would be able to better control/regulate algae, bacteria, and other protists that can be found in water.

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4 0
3 years ago
Read 2 more answers
12.1 g CoCl3 calculate the amount, in moles
elena-s [515]

Answer:

Number of moles of CoCl3 =  0.09 moles

Explanation:

Given data:

Mass of CoCl₃ = 12.1 g

Number of moles = ?

Solution:

First of all we will calculate the molar mass.

Molar mass of CoCl3 = 28.01 + (35.5×3)

Molar mass of CoCl3 = 28.01 + 106.5

Molar mass of CoCl3 = 134.51 g/mol

Number of moles of CoCl3 = mass / molar mass

Number of moles of CoCl3 = 12.1 g/134.51 g/mol

Number of moles of CoCl3 =  0.09 moles

4 0
4 years ago
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