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Amanda [17]
3 years ago
8

Electrons have almost no mass. True False

Chemistry
2 answers:
babymother [125]3 years ago
7 0
The answer for this is true 
BigorU [14]3 years ago
6 0

TRUE is the perfect answer


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A 11.0 mLmL sample of 0.30 MHBrMHBr solution is titrated with 0.16 MNaOHMNaOH. Part A What volume of NaOHNaOH is required to rea
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Answer:

21 mL of NaOH is required.

Explanation:

Balanced reaction: HBr+NaOH\rightarrow NaBr+H_{2}O

Number of moles of HBr in 11.0 mL of 0.30 M HBr solution

= (\frac{0.30}{1000}\times 11.0) moles = 0.0033 moles

Let's say V mL of 0.16 M NaOH solution is required to reach equivalence point.

So, number of moles of NaOH in V mL of 0.16 M NaOH solution

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According to balanced equation-

1 mol of HBr is neutralized by 1 mol of NaOH

So, 0.0033 moles of HBr are neutralized by 0.0033 moles of NaOH

Hence, 0.00016V=0.0033

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So, 21 mL of NaOH is required.

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3 years ago
What is 19 hundred thousandths in scientific notation
Drupady [299]
.00019 

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8 0
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Explanation:

A displacement reaction is the one wherein the atom or a set of atoms is displaced by another atom in a molecule. For instance, when iron is added to a copper sulphate solution, it displaces the copper metal. A + B-C → A-C + B.

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The biotic factors are bacteria soil, dead leaves, and stream water.

<h3>What is an abiotic factor?</h3>

An abiotic factor is a non-living part of an ecosystem that shapes its environment.

Biotic and abiotic factors make up a community via interaction.

Biotic factors are considered living things (having "life") while abiotic factors are simply non-living things.

The dead leaves of plants are an abiotic factor, the bacteria in soil are living matter and stream flowing, etc.

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brainly.com/question/12689972

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6 0
1 year ago
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