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wel
2 years ago
8

What characteristic must be true of a good hypothesis

Chemistry
1 answer:
Lelechka [254]2 years ago
4 0
A hypotheses is a testable idea or explanation that leads to scientific investigation.
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As an electron in an atom moves from a higher energy state to a lower energy state, the atom
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Answer:B

Explanation:

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How to figure out which melting point would have the lowest melting point ?
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That would be helium, with a melting point of 0.95 K (-272.20 °C)—although this happens only under considerable pressure (~25 atmospheres). At ordinary pressure, helium would remain liquid even if it could be chilled to absolute zero.

6 0
2 years ago
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A chemist is given a 3.00M solution of KBr and needs to measure out 0.733 moles of this solution. How many mL of the 3.00M KBr s
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In order to measure 0.733 moles of KBr from a 3.00 M solution, the chemist needs 244 mL of solution.

<h3>What is molarity?</h3>

Molarity (M) is a unit of concentration of solutions, and it is defined as the moles of a solute per liters of a solution.

  • Step 1: Calculate the liters of solution required.

A chemist has a 3.00 M KBr solution and wants to measure 0.733 moles of KBr. The required volume is:

0.733 mol × (1 L/3.00 mol) = 0.244 L

  • Step 2: Convert 0.244 L to mL.

We will use the conversion factor 1 L = 1000 mL.

0.244 L × (1000 mL/1 L) = 244 mL

In order to measure 0.733 moles of KBr from a 3.00 M solution, the chemist needs 244 mL of solution.

Learn more about molarity here: brainly.com/question/9118107

7 0
2 years ago
4.<br>How many parents take part in binary fission?​
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Binary fission is done by one parent . as one parent cell divides it into two daughter cells and further.
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the force of gravity between a plant and its moon is 371 N. if the planet has a mass of 4*1022kg and the moon has a mass of 5*10
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59977533.98m

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