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Wittaler [7]
3 years ago
11

Help pleas I dont understand

Chemistry
2 answers:
katen-ka-za [31]3 years ago
7 0
The amount of time each group took to build the boat because in the study, it is something the scientists cannot control. It is also a result of the other three factors, which are all independent.
Temka [501]3 years ago
4 0
The *independent* variable is the one that you always can control. However, the dependent variables are not since they **depend** on another.
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Ede4ka [16]

Answer:

answer is potasium means k

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3 years ago
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What is Lewis symbol for K+
Alexxx [7]

Lewis symbol for K+ is given by a dot and K.

<h3>Meaning of Lewis symbol</h3>

Lewis symbols can be defined as a symbol the is used in describing the valence electron configurations of an atom ions.

A Lewis symbol consists of the symbol of the element and then surrounded by one dot for each of its valence electrons.

In conclusion, Lewis symbol for K+ is given by a dot and K.

Learn more about Lewis symbol: brainly.com/question/6605265

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A report was created that outlined the outbreak of a disease called fungal meningitis among patients who received contaminated s
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the centers for disease control and prevention

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2 years ago
What is said to have happened to the electrons in an atom in its ground state absorbs a quantum of energy from light
Rus_ich [418]

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The electron from the ground state to occupy a next energy level. In this case,we say that the electron is excited

3 0
3 years ago
What was the chemical purpose of heating the MnSO4⋅H2O? Why is this procedure important?
Alla [95]

The chemical purpose of heating the MnSO4⋅H2O is to eliminate water with the formation of new compounds.

<h3>Dehydration reactions</h3>

Dehydration reaction is a type of chemical reaction that involves the removal of water which would eventually lead to the formation of a new compound.

The molecule of MnSO4⋅H2O contains a molecule of water(H2O). After heating of the molecule, water is lost giving rise to the dry compound MnSO4.

Other examples of dehydration reactions are:

  • Reactions that produce acid anhydrides.

  • Reactions that involve the production of polymers.

  • Reaction of sucrose with concentrated sulfuric acid

Therefore, the chemical purpose of heating the MnSO4⋅H2O is to eliminate water with the formation of new compounds.

Learn more about dehydration here:

brainly.com/question/12261974

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