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julsineya [31]
3 years ago
7

Sodium atoms combine with chlorine atoms to form sodium chloride (table salt). Which part of Dalton’s atomic theory explains why

table salt can be made? Everything is made from atoms and atoms are the smallest unit of matter that can’t be broken down into anything else. Atoms can react together, be separated from each other, or be rearranged via chemical reactions. Atomic nuclei can react in nuclear reactions, which turn matter into energy. Atoms of one element are all the same and are fundamentally different from atoms of other elements.
Chemistry
1 answer:
zepelin [54]3 years ago
4 0
Correct answer is:

,,Atoms can react together, be separated from each other, or be rearranged via chemical reactions. "

:-) ;-)
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Mazyrski [523]

Answer: half life

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k= disintegration constant

x= amount of substance left after time t

a= initial amount of substance

when one half of the sample is decayed, one half of the sample remains and t can be represented as t_{1/2}

at t= t_{1/2}, x=\frac{a}{2}

t_{1/2}=\frac{2.303}{k}\hspace{1mm}log\frac{a/2}{a}

t_{1/2}=\frac{0.693}{k}

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3 years ago
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Answer:

Torrey's neighbour is incorrect because increase in kinetic energy is proportional to velocity.  If the velocity increases so will the object's kinetic energy.  Because the mass is constant, if the velocity increases, so does the kinetic energy.

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The [-oh) in a sample of egg whites is 6.3 x 10-7 m. what is the [h3o+] in these<br>egg whites?
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The hydrogen ion concentration [H3O+] in an egg white containing 6.3 × 10-⁷M of [OH-] is 1.5 × 10-⁸M.

<h3>How to calculate [H3O+]?</h3>

The hydrogen ion concentration of a solution can be calculated as follows:

pOH = - log [OH-]

pOH = - log [6.3 × 10-⁷M]

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pH = 14 - 6.2

pH = 7.8

pH = - log [H3O+]

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[H3O+] = 10-⁷:⁸

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Therefore, the hydrogen ion concentration [H3O+] in an egg white containing 6.3 × 10-⁷M of [OH-] is 1.5 × 10-⁸M.

Learn more about hydrogen ion concentration at: brainly.com/question/15082545

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2 years ago
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Answer:

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