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3 years ago

The steps you take to complete the experiment is?

Chemistry

1 answer:

photoshop1234 [79]3 years ago

5 0

Answer:

Purpose/Question.

Research.

Hypothesis.

Experiment.

Data/Analysis.

Conclusion.

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Which chemical change ? A.boiling B.freezing C.burning D.melting

fredd [130]

ANSWER:

the answer is burning as it is a chemical change emaning that the substance changes chemically, the other choices are exp of physical changing meaning they stay the same substance but change physically

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3 years ago

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In a neutral atom, the number of protons _______ the number of electrons.

sergejj [24]

Answer:

equal the number of electrons.

Explanation:

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4 years ago

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Convert 5° C into Fahrenheit.

Lady_Fox [76]

Answer:

5 in celcius is 41 in fahrenheit!

Explanation:

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3 years ago

If you add a neutron to an atom how does it change ?

Kobotan [32]

Answer:

Its atomic mass increases by 1

An isotope of that element is fotmed with mass differences by 1

Explanation:

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3 years ago

Select the electron-domain geometry for a molecule with three bonding domains and one nonbonding domain.

mamaluj [8]

Answer: C) Tetrahedral

Explanation:

The number of electron pairs is 4 that means the hybridization will be $sp^3$ but as there are three bonding domains and one nonbonding domain, thus electronic geometry is tetrahedral and the molecular geometry will be trigonal pyramidal.

Linear electron geometry is possible when number of electron pairs is 2 and the hybridization will be $sp^2$ .

Trigonal planar geometry is possible when number of electron pairs is 3 and the hybridization will be $sp^3$ .

Trigonal bipyramidal geometry is possible when number of electron pairs is 5 and the hybridization will be $sp^3d$ .

Octahedral geometry is possible when number of electron pairs is 6 and the hybridization will be $sp^3d^2$ .

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4 years ago