1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lukranit [14]
1 year ago
15

Scientific method practice hypothesis construction & experimental design

Chemistry
1 answer:
Gelneren [198K]1 year ago
3 0
A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
You might be interested in
Để trung hoà 20ml dung dịch HCl 0.1M cần 10ml dung dịch NaOH nồng độ x mol/l . Giá trị của x là
elena55 [62]

The question is: To neutralize 20ml of 0.1M HCl solution, 10ml of NaOH solution of concentration x mol/l is required. What is the value of x?

Answer: The value of x is 0.2 M.

Explanation:

Given: V_{1} = 20 mL,   M_{1} = 0.1 M

V_{2} = 10 mL,        M_{2} = x

Formula used is as follows.

M_{1}V_{1} = M_{2}V_{2}\\0.1 M \times 20 mL = x \times 10 mL\\x = 0.2 M

Thus, we can conclude that the value of x is 0.2 M.

6 0
3 years ago
Was Democritus' atomic theory correct?
Elza [17]

Answer:

Yes, Democritus's atomic theory was correct.

Explanation:

He thought the first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of a given element are identical in mass and properties. The other scientists added onto his theory to show that he was correct, except Aristotle, he thought the world was made of the 4 elements: earth, wind, fire, water.

4 0
3 years ago
What term describes gas that is compressed into a smaller space than it would normally occupy at Earth's surface?
Aloiza [94]

Pressurized gas is the term that is used to describe a gas that is compressed into a smaller space than it would normally occupy at Earth's surface.

Explanation:

The purpose of compressing a gas is to lessen its volume so that it can fit in a small space. Natural gas can be compressed using a compressor and the pressure of a compressed gas is 200 to 250 bars.

Pressurized gases are used in ground processing and space flight operations.  Pressurized gas, also known as compressed gas is also used in fuel production and in gas pipelines.

When stored in a reservoir, care must be taken to avoid leakage as these gases compressed under high pressure are highly flammable.

8 0
3 years ago
Hi guys will u please help me Idk thanks
Wewaii [24]
<h2>Answer:</h2>

<em>magnetic field lines are always directed in S_N direction.</em>

<em> hope this will help you </em>

5 0
3 years ago
The combination of two or more atoms, from the same or different elements, creates a(n)__________. a. element c. molecule b. ato
vodka [1.7K]
The correct answer to complete the sentence is C. <span>The combination of two or more atoms, from the same or different elements, creates a molecule.</span><span> Compounds are a type of molecules made of atoms from different elements held together by chemical bonds.</span>
8 0
3 years ago
Other questions:
  • A mixture consists of ag pb and fe metals. which of these metals will react with zncl2
    5·2 answers
  • I need help with Number 61 please
    9·1 answer
  • What other objects are often arranged by their properties
    8·1 answer
  • A 50.0-ml sample of 0.200 m sodium hydroxide is titrated with 0.200 m nitric acid. calculate the ph in the titration after you a
    6·1 answer
  • 2) Pick the statement about the Bohr model of the hydrogen atom that is NOT true. A) The energy of each Bohr orbit is quantized.
    13·2 answers
  • Which of the following accurately describes the function of the muscular
    14·1 answer
  • Which of the following is the correct Lewis dot diagram for Br found in LiBr.
    5·2 answers
  • Which of these is a biotic factor of an ecosystem?
    9·1 answer
  • Chemists predict the geometry of molecules based on the repulsion of electron pairs. Molecules can be represented by the general
    7·2 answers
  • Describe the functions of the proteins, carbohydrates and cholesterol.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!