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
xeze [42]
2 years ago
9

Which of the following do scientists use to form a hypothesis?

Chemistry
1 answer:
Debora [2.8K]2 years ago
3 0

Explanation:

The scientific method involves making observations and asking questions. Scientists form hypotheses based on these observations and then develop controlled experiments to collecting and analyze data. Using this data, they are able to draw conclusions and form questions for new scientific research.

:)ᴍᴀʀᴋ ᴀꜱ ʙʀᴀɪɴʟɪꜱᴛ

You might be interested in
How many grams are there in 7.5x10^23 molecules of H2SO4
horsena [70]
Moles of H2SO4= 7.5x10^23/ 6.02x10^23 = 1.25 (3sf) moles of H2SO4

Mass of 1 mole of H2SO4= 98.1g

Therefore mass of 7.5x10^23 molecules of H2SO4= 122.63g 
6 0
2 years ago
16. What is a pure substance formed when two or more different elementscombine called?A. compoundB. moleculeC. element
Lana71 [14]
<h2>Answer:</h2>

Compound. Option A is correct

<h2>Explanations:</h2>

When two or more different elements combines, a compound is formed. For instance, if carbon and oxygen combines, carbondioxide is formed according to the equation;

C+O_2\rightarrow CO_2

From the reaction, carbon and oxygen are the elements while carbondioxide is the compound. Hence we can conclude that a pure substance formed when two or more different elements combine called compound.

3 0
10 months ago
Determine the change in volume that takes place when a 2.00 L sample of N2 gas is heated from 250 C to 500 C.
Effectus [21]

Answer:

V₂ = 2.96 L

Explanation:

Given data:

Initial volume = 2.00 L

Initial temperature =  250°C

Final volume = ?

Final temperature = 500°C

Solution:

First of all we will convert the temperature into kelvin.

250+273 = 523 k

500+273= 773 k

According to Charles's law,

V∝ T

V = KT

V₁/T₁ = V₂/T₂

V₂ = T₂V₁/T₁

V₂ = 2 L × 773 K / 523 k

V₂ =  1546 L.K / 523 k

V₂ = 2.96 L

4 0
3 years ago
What is the role of meteorites in the formation of life?
CaHeK987 [17]

Answer:

Meteorites are consensually considered to be involved in the origin of life on this Planet for several functions and at different levels: (i) as providers of impact energy during their passage through the atmosphere; (ii) as agents of geodynamics, intended both as starters of the Earth’s tectonics and as activators of local hydrothermal systems upon their fall; (iii) as sources of organic materials, at varying levels of limited complexity; and (iv) as catalysts.

Explanation:

4 0
2 years ago
Helppppppppppp!!!!!!!!
Natali5045456 [20]

Pressure does not affect the voltage produced in a voltaic cell.

8 0
3 years ago
Other questions:
  • A 50 ml volumetric flask is calibrated to the _______ and will hold exactly _________ when filled to the calibration line: 0.01
    13·2 answers
  • Classify these molecules as polar or nonpolar. Drag each item to the appropriate bin.
    13·1 answer
  • Calculate the OH for a solution that is pH 6.47
    15·1 answer
  • A houseplant is placed on a window sill that gets direct, bright sunlight
    15·1 answer
  • These two finches share a common ancestor from South America. What is the most likely way that one ancestral finch species will
    9·1 answer
  • When an acid and base react, salt and water is formed.<br><br> True<br><br> False
    10·1 answer
  • Solve as soon as possible with detailed step by step explanation ​
    11·1 answer
  • Use the drop-down menus to name these structures<br> F<br> FICH<br> H
    14·1 answer
  • omplete the relationship between ph and pka for each of the following atomic view pictures of a buffered solution.
    11·1 answer
  • What is the difference between a nucleus in Biology and Chemistry?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!