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
kompoz [17]
3 years ago
9

What features make a question scientific, and why are some questions beyond the boundaries of scientific investigation? Be sure

to include examples to support your answer.
Chemistry
1 answer:
Pavel [41]3 years ago
5 0
What makes a question scientific is that we are able to test our hypothesis.

For example:  Will increased sunlight cause more seeds to grow.  We can test that simply by placing seeds in the sun and some out of the sun.

If you cannot test an hypothesis, then it is NOT scientific

For example: Macroevolution isn't a scientific question because we cannot test whether or not complex organisms come from simpler organisms.  It can only be classified as an Hypothesis at best.
You might be interested in
How many atoms are in 4.00 moles of helium?
irga5000 [103]
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles.

4 mol He (  </span>6.022 x 10^23 atoms / mole ) = 2.4088 x 10^34 atoms He
3 0
3 years ago
Read 2 more answers
3 materiales corrosivos
Leviafan [203]
Yesnsjdjdjdjndndjdndndndjndndndjdjen
5 0
3 years ago
NaOH + HCl -&gt;<br> Fe + HCl -&gt;
vfiekz [6]

Answer:

This is an oxidation-reduction (redox) reaction:

2 HI + 2 e- → 2 H0 (reduction)

Fe0 - 2 e- → FeII (oxidation)

HCl is an oxidizing agent, Fe is a reducing agent.

Reactants:

Fe

Names: Iron source: wikidata, accessed: 2019-09-07, Fe source: wikidata, accessed: 2019-09-07, Element 26 source: wikidata, accessed: 2019-09-07... show more

HCl – Chlorane source: wikipedia, accessed: 2019-09-27, Hydrogen chloride source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02

Other names: Hydrochloric acid sourc2 2019-09-27source: NIOSH NPG, accessed: 2019-09-02, M source: wikipedia, accessed: 2019-09-27, Uriatic acid source: wikipedia, accessed: 2019-09-27... show more

Appearance: Colorless, transparent liquid, fumes in air if concentrated source: wikipedia, accessed: 2019-09-27; Colorless gas source: wikipedia, accessed: 2019-09-27; Colourless compressed liquefied gas with pungent odour source: ICSC, accessed: 2019-09-04; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.] source: NIOSH NPG, accessed: 2019-09-02

Products:

FeCl2 – Iron(II) chloride source: : 2019-09-27source: ICSC, accessed: 2019-09-04, Iron dichloride source: wikipedia, accessed: 2019-09-27source: ICSC, accessed: 2019-09-04

Other names: Ferrous chloride source 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Rokühnite source: wikipedia, accessed: 2019-09-27, [FeCl3] source: wikidata, accessed: 2019-09-02, FeCl3 source: wikidata, accessed: 2019-09-02

Appearance: Tan solid (anhydrous) | Pale green solid (di-tetrahydrate) source: wikipedia, accessed: 2019-09-27; White-to-light-green hygroscopic crystals source: ICSC, accessed: 2019-09-04

H2

Names: Dihydrogen source 2019-09-07, Hydrogen source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-07, H2 source: wikidata, accessed: 2019-09-07... show more

Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04

Hope this helps

5 0
2 years ago
N2 + 3H2 - 2NH3
vladimir1956 [14]

The number of mole of nitrogen gas, N₂, needed to produce 150 g of ammonia, NH₃ is 4.41 moles

<h3>How to determine the mole of NH₃ produced </h3>
  • Mass of NH₃ = 150 g
  • Molar mass of NH₃ = 14 + (3×1) = 17 g/mol
  • Mole of NH₃ =?

Mole = mass /molar mass

Mole of NH₃ = 150 / 17

Mole of NH₃ = 8.82 moles

<h3>How to determine the mole of N₂ needed </h3>

Balanced equation

N₂ + 3H₂ —> 2NH₃

From the balanced equation above,

2 moles of NH₃ were produced by 1 mole of N₂.

Therefore,

8.82 moles of NH₃ will be produced by = 8.82 / 2 = 4.41 moles of N₂.

Thus, 4.41 moles of N₂ is  needed for the reaction.

Learn more about stoichiometry:

brainly.com/question/14735801

4 0
2 years ago
Just a curious question to the Chemists,
Vikki [24]

Answer:

well the world would be shocked

Explanation:

and suprise

8 0
3 years ago
Other questions:
  • Which is an example of plasmas in nature? solar cells plasma balls auroras clouds
    9·2 answers
  • Why is the presence of a dipole in a molecule so important?
    5·1 answer
  • What is conserved during all chemical reactions?
    8·1 answer
  • Phosphorus has an atomic mass of 31 and an atomic number of 15, so the number of neutrons must be _______________.
    11·1 answer
  • How do you prove a scalene triangle is a right triangle?
    5·1 answer
  • Which of the following inter-particle forces has the lowest potential energy?
    8·1 answer
  • A scientist observes that a certain fungus glows under ultraviolet light. What
    10·2 answers
  • A brick is resting on a smooth, level surface. A student applies a force of
    10·1 answer
  • PLS HELP DECODE THIS
    8·1 answer
  • A food web is a diagram that shows how different food chains connect. true or false​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!