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expeople1 [14]
4 years ago
10

1) 5,730 s to ks

Chemistry
1 answer:
alexandr1967 [171]4 years ago
8 0

Answer:

1) 5.73 ks

2) 2200 cg

3) 77000 ms

Explanation:

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What are some examples of physical properties?
den301095 [7]

Answer:

Physical properties: how soft a blanket it, how hard bread is, what color leaves are, what bleach smells like.

Chemical change: burning wood, rotting food, digestion, rusting of a nail.

Physical change: mixing salt and sugar, tearing a piece of paper, melting ice, chopping wood.

Explanation:

Physical properties are properties that are measurable.

Chemical change is when substances combine (fire and wood make burning wood) to make another substance. They aren't reversible. If you were to melt ice, you could refreeze it, you can't unburn wood.

Physical change is something that alters the form of the substance but not the chemical composition.

Hope this helps!

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Explain why the statement “The speed of light is 300 million m/s” is not always correct.
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Because the speed of light is determined by the medium that is it in. If light is in a vacuum it goes 300 million meters per second but it is slower in air, and even slower in water because water is more dense than the previous two.

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Which reflects more energy, the atmosphere and clouds or the surface?
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the surface

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n/a

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4 years ago
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The combination of all the organ systems working together make up a(n) _______________________.
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3 years ago
You titrate 25.0 mL of HCl solution of an unknown concentration with a 0.190 M NaOH solution. Complete neutralization of the HCl
galina1969 [7]

A titration is defined as 'the process of determining the quantity of a substance A by adding measured increments of substance B, the titrant, with which it reacts until exact chemical equivalence is achieved (the equivalence point)'.

The Molarity of the HCl Solution requires the addition of 24.6 mL of titrant is 0.0836 M (to 3 significant figures)

<h3>What is Titrant?</h3>

A reagent solution of precisely known concentration that is added in titration

Given reaction HCl + NaOH ===> NaCl + H_2O  neutralization reaction

Note that the mole ratio is 1:1 meaning that 1 mole HCl reacts with 1 mole NaOH to produce 1 mole NaCl and 1 mole H_2O

Find moles of NaOH used:

18.45 ml x 1 L/1000 ml x 0.085 mol/L = 0.002091 moles NaOH used

This meant that there must be 0.002091 moles of HCl present in the 25.0 mls.

We want to find the molarity (M) which is moles HCl/liter of solution.  We know the moles, and we also know the liters of solution (25.0 mls x 1 L / 1000 mls = 0.025 liters)

M = 0.002091 moles HCl / 0.025 liters = 0.08364 M = 0.0836 M (to 3 significant figures)

Learn more about Titration Here;
brainly.com/question/27107265

#SPJ1

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2 years ago
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