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il63 [147K]
3 years ago
13

Please help!!! I’ll mark brainlist

Chemistry
1 answer:
OlgaM077 [116]3 years ago
6 0
The answer is spinning
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Terry heats two different masses of substance A to different temperatures, and measures the amounts of both carbon dioxide and w
Naddika [18.5K]

Answer:

This experiment is uncontrolled because two different masses of substance A are used.

Explanation:

A controlled experiment is a structured experiment aimed at testing a particular observation or observations. The setup of a controlled experiment helps to determine the reason why a particular observation occurs and what must have led to it.

In the experiment highlighted above, different masses of a substance were used, they were heated to different temperatures. The set up does not show any correlation between the masses of substances heated and the temperatures. It is even difficult to try to predict the hypothesis for this kind of experimental set up. All the variables in play can best be assumed to be independent of one another.

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What is The cellular process that releases the energy stored in food molecules
notka56 [123]

Respiration. That is the process.

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What would you need to do to calculate the molality of 10 g of NaCl in 2 kg of
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Answer:

O B. Convert the 10 g of NaCl to moles of NaCl.

Explanation:

The formula for finding the molality is m=moles of solute/kg of solvent. The solute for this question is NaCl and the solvent is water.

(10g NaCl)(1 mol NaCl/58.44g NaCl)=0.1711 mol NaCl

58.44 is the molar mass of NaCl

m=0.1711 mol NaCl/2 kg H2O

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Why does Fluorine have a higher electronegativity than lodine ?​
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Fluorine is more electronegative than iodine because atom size of F is less than I so the tendency to attract electron increases.

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