Conclusions related to historical events are limited to subjective evaluation of the existing evidence because _____. they cannot be repeated they don't need to be tested hypotheses cannot be developed that is good enough

Answers

Answer 1
Answer: This is not actually a chemistry question but okay:

Conclusions related to historical events are limited to subjective evaluation of the existing evidence because 
they cannot be repeated. 
Answer 2
Answer:

Answer:

they cannot be repeated

Explanation:

A historical event can not be repeated so that it is possible to study it. For this reason, when studying a historical event it is necessary to search for documents that speak about that event in a consensual way. For this reason, we can see that the conclusions related to historical events are limited to the subjective evaluation that will vary according to the judgment of each person.


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1. What is the maximum amount of NaCl that can dissolve in200 g of water? (The solubility of NaCl is 35 g/100 g H20 at
20°C.) *

Answers

Answer:

70g

Explanation:

Rate = 35g of NaCl can dissolve in 100g of H2O

Use proportions for 200g of H2O:

(35)/(100) = (x)/(200)

Since 200 is double of 100, x needs to be double of 35.

(35)/(100) = (70)/(200)

Therefore the maximum amount of NaCl that can dissolve in 200g of water is 70g.

Describe a test to determine whether an object is charged or uncharged.

Answers

What do you mean ???????

An organism's _______ describes its genetic composition. An organism's _______ describes its appearance or observable characteristics.A.
species; heredity
B.
genotype; phenotype
C.
heredity; species
D.
phenotype; genotype

Answers

B. 
genotype; phenotype

Genetic variation determines inherited  differences between individuals . Our height or eye color are inherited from our parents, but our phenotype is also affected by environment such as the food we eat (diet), drugs we take, toxins surrounding us, climate, location, culture, physical accidents and lifestyle.

Answer: Option B

Explanation: Any organism can be defined by two factors one is its genotype and other one is its phenotype.

The genetic composition of the body of an organism can be said as its genotype. The genes are present inside the cell and determines the physical characters of an organism.

The phenotype can be defined as the physical appearance of the organism. Example: height, color of the organism.

What’s the compound name of Ca2N

Answers

Calcium and Nitrogen

How do you find the fluid displacement of an object by using a graduated cylinder?

Answers

So first you record the initial amount of the water before putting in the object. Then you put in the object and record the number where the water is at. The using that number subtract the initial amount from the final and then that will be the fluid displacement of the object.

What is the mass of 5.50 mol of pure liquid bromine ?

Answers

Answer:

m Br = 439.472 g

Explanation:

mass Br = ?

∴ mol Br = 5.50 mol

∴ molar mass Br  79.904 g/mol

mass = (mol)*(g/mol)

⇒ m Br = (5.50 mol)*(79.904 g/mol)

⇒ m Br = 439.472 g