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finlep [7]
4 years ago
12

12 points

Chemistry
1 answer:
sleet_krkn [62]4 years ago
7 0

Answer:

C. Theories have been confirmed through tests; hypotheses haven't.

Explanation:

In simple terms,<u> a theory is something that has been studied, tested, and validated with results</u> whereas <u>a hypothesis is when one "guesses" or "assumes" about something with no prior tests</u>. In short, a hypothesis can be best understood as just a proposal while theory can be taken as a validated result.

Through various trials and tests, a theory arrives whereas a hypothesis can be the initial stage of the testing. For example, in saying that "My hypothesis is that this metal cannot bend" is just assuming or expressing one's opinion. But when the metal is tested and a definite result is found, then that becomes a theory.

So, we can say that a theory is a confirmed result after tests while a hypothesis is not tested or confirmed with a definite result.  

Thus, the <u>correct answer is option C. </u>

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<u>Explanation:</u>

Whenever if two solutions are mixed, then if there is any color change, or evolution of any vapors, bubbles or gas formation or if there is any formation of a color or white precipitate confirms that the occurrence of a chemical reaction.

If nothing happens said above then it is said that there is no chemical reaction occurs.

Here in the event 1 a clear liquid in one beaker poured into clear liquid in beaker 2 then there is a formation of orange liquid, which means there is a formation of a new colored liquid confirms that the chemical reaction occurred.

4 0
3 years ago
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Find the number of mass in 3.30 grams of (NH4)2 SO4
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6 0
3 years ago
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Furkat [3]
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base: bitter (baking soda)

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4 years ago
Electrochemical cells can be used to measure ionic concentrations. A cell is set up with a pair of Zn electrodes, each immersed
Phantasy [73]

Answer:

the concentration of the solution is 0.00906 M

Explanation:

Given the data in the question;

we know that from Nernst Equation;

E = E⁰ - ((0.0592/n) logQ)

now, E₀ for concentration cell is 0

n for this redox is 2

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divide both side by 0.0296

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Therefore, the concentration of the solution is 0.00906 M

6 0
3 years ago
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