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arlik [135]
3 years ago
12

When making a guess, you are forming a_______.

Chemistry
2 answers:
maw [93]3 years ago
8 0
When making a guess, you are forming a hypothesis. A hypothesis is a statement you make based on your observations of a certain phenomenon, so it's an educated guess. You will then carry out an experiment whose results will hopefully support your hypothesis.
Sergio [31]3 years ago
6 0

When making a guess, you are forming a hypothesis.

A hypothesis is a statement you make based on your observations of a certain phenomenon, so it's an educated guess.

You will then carry out an experiment whose results will hopefully support your hypothesis.


Explanation:

Hypothesis is a supposition or projected clarification created on the premise of restricted proof as a place to begin for more investigation.A hypothesis may be a tentative, testable answer to a scientific question. Once a person encompasses a scientific question she is fascinated by, the person reads up to search out out what's already far-famed on the subject. Then she uses that data to make a tentative answer to her scientific question. Typically folks discuss with the tentative answer as "an educated guess."

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The chemical equation, Cr + Fe(NO3)2 → Fe + Cr(NO3)3, is an example of which type of reaction?
Angelina_Jolie [31]

Answer:

Redox type

Explanation:

The reaction is:

2Cr +  3Fe(NO₃)₂ → 2Fe + 2Cr(NO₃)₃

2 moles of chromium can react to 3 moles of iron (II) nitrate in order to produce 2 moles of iron and 2 moles of chromium nitrate.

If we see oxidation state, we see that chromium changes from 0 to +3

Iron changed the oxidation state from +2 to 0

Remember that elements at ground state has 0, as oxidation state.

Iron is being reduced while chromium is oxidized. Then, the half reactions are:

Fe²⁺  +  2e⁻ ⇄  Fe    (Reduction)

Cr ⇄ Cr³⁺  +  3e⁻    (Oxidation)

When an element is being  reduced, while another is being oxidized, we are in prescence of a redox reaction.

8 0
3 years ago
A carbon forms one bond to an X atom plus three more bonds to three hydrogen atoms. If the hybridization to X has 81% p-characte
liraira [26]

Answer:

110 degree

Explanation:

This is because Hybridization of an s orbital with all three p orbitals (px , py, and pz) results in four sp3 hybrid orbitals. sp3 hybrid orbitals are oriented at bond angle of 109.5 degrees from each other. This 109.5 degrees gives an arrangement of tetrahedral geometry

5 0
3 years ago
List two situations in which measurements have unlimited number of significant figures
GaryK [48]
Your answers would be, (Ex. 3*3*3*3....etc..).
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(2), When measurement involves exactly defined quantities




Hope that helps!!!

5 0
3 years ago
What is the definition of geosphere
Anton [14]
It's any of the almost spherical concentric regions of matter that make up the earth and it's atmosphere, as the lithosphere and hydrosphere. 
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5 0
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The electron cloud model describes the __of electrons in an atom.
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Answer:

it's location

Explanation:

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