Which of the following is an example of pseudo science? (choose one, not two)

Chemistry

2 answers:

Alik [6]2 years ago

5 0

Answer:

The answer to your question is: B. Astrology

Explanation:

A. Biology is a science because it make used of the scientific method to prove its theories, so this option is wrong.

B. Astrology this is the right option because it does not follow the scientific method to prove that stars and planets determine our future.

C. Chemistry it make used of the scientific method, the results can be tested and replicative.

D. Physics it's a science, its an extremely metholodogical science, this is not the right option.

E. Medicine it's a science, follows the scientific method, it establishes laws and theories.

Leokris [45]2 years ago

4 0

Answer:

The answer to your question is: B. Astrology

Explanation:

A. Biology is a science because it make used of the scientific method to prove its theories, so this option is wrong.

B. Astrology this is the right option because it does not follow the scientific method to prove that stars and planets determine our future.

C. Chemistry it make used of the scientific method, the results can be tested and replicative.

D. Physics it's a science, its an extremely metholodogical science, this is not the right option.

E. Medicine it's a science, follows the scientific method, it establishes laws and theories.

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Rina8888 [55]

B mass but not of charge

7 0

2 years ago

What aqueous solution has the highest boiling point at standard pressure? A) 1.0 M KCl(aq) B) 1.0 M CaCl2(aq) C) 2.0 M KCl(aq) D

Lapatulllka [165]

The increase in the boiling point of a solvent is a colligative property.

That means that the increase in the boling point will be related to the number of particles (molecules or ions) present in the solution.

The higher the number of particles (molecules or ions) the higher the increase in the boiling point.

All the aqueous solutions presented are electrolytes, i.e. the solutes are ionic compounds.

Then, you have to compare the number of ions that you have in each solution.

A) 1.0 M KCl ---> 1.0 M K+ + 1.0 MCl- = 2 moles of particles / liter

B) 1.0 M CaCl2 --> 1.0M Ca(2+) + 1.0M * 2 Cl (-) = 3 moles of particle / liter

C) 2.0M KCl ---> 2.0 M K+ + 2.0 M Cl- = 4 moles of particle / liter

D) 2.0 M CaCl2 ----> 2.0 M Ca (2+) + 2.0M * 2 Cl (-) = 6 moles of particle / liter.

Then, the solution 2.0M CaCl2(aq) has the highest increase in the boiling point.

Answer: option D) 2.0 M Ca Cl2(aq)

5 0

2 years ago

How many moles in 2.21 x10E24 atoms of aluminum

lisov135 [29]

<h3>Answer:</h3>

3.67 mol Al

<h3>General Formulas and Concepts:</h3>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

<u>Stoichiometry</u>

Using Dimensional Analysis

<h3>Explanation:</h3>

<u>Step 1: Define</u>

2.21 × 10²⁴ atoms Al

<u>Step 2: Identify Conversions</u>

Avogadro's Number

<u>Step 3: Convert</u>

Set up: $\displaystyle 2.21 \cdot 10^{24} \ atoms \ Al(\frac{1 \ mol \ Al}{6.022 \cdot 10^{23} \ atoms \ Al})$
Divide: $\displaystyle 3.66988 \ mol \ Al$