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Nonamiya [84]
3 years ago
9

- Which theory was the natural beginning of a Big Bang theory?

Chemistry
1 answer:
cestrela7 [59]3 years ago
8 0

Well, the big bang theory was that the universe started to expand at and extrmly fast rate. We're talking several billion kilometers in less than a second.  People think that our univers was pretty much shot out into space in a ciertain direction. During this, the univers has expanded and widen't to unimaginable size. but we really don't know what happend, and we may never find out. Who knows?

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In the titration of a solution of Sodium hydroxide, an acid titrant was prepared by diluting 125.0 mL of 10.00 mol/L Nitric acid
harina [27]

Answer:

1.395M NaOH

Explanation:

Sodium hydroxide, NaOH, reacts with nitric acid, HNO3, as follows:

NaOH + HNO3 → NaNO3 + H2O

<em>Where 1mol of NaOH reacts with 1mol of HNO3</em>

To solve this question we must find the concentration of the titrant. With the concentration and the needed acid we can find the moles of HNO3 added = moles NaOH in the solution. With the moles of NaOH and its volume we can find its concentration as follows:

<em>HNO3 concentration:</em>

10.00mol/L HNO3 * (125.0mL/500.0mL) = 2.500M HNO3

<em>Moles HNO3 = Moles NaOH:</em>

16.74mL = 0.01674L*(2.500mol/L) = 0.04185 moles HNO3 = Moles NaOH

<em>Concentration NaOH:</em>

0.04185 moles / 0.0300L =

1.395M NaOH

6 0
2 years ago
When water is solid, do molecules move?
BabaBlast [244]

Answer:

Ice is water in its solid form. Ice keeps its shape, even if it's removed from the container. The molecules in ice are locked into place and cannot move or slide past one another, but they do vibrate a little bit.

Explanation:

As the temperature drops or decreases, the water molecules gradually slow down. Eventually they stop moving and simply vibrate back and forth. At this point ice is formed, the solid phase of water. If the temperature is allowed to increase, the molecules will once again begin to vibrate faster and faster.

8 0
2 years ago
Read 2 more answers
How to find frequency​
ale4655 [162]

Answer:

f = V / λ

Explanation:

In this formula, f represents frequency, V represents the velocity of the wave, and λ represents the wavelength of the wave

3 0
2 years ago
The mechanism for electrophilic aromatic substitution reaction involves addition and
nika2105 [10]
I got it for you no worries

5 0
3 years ago
How are Celsius, Kelvin, and Fahrenheit scales similar? How are they different? Considering their differences, think of one scen
PIT_PIT [208]

Answer:

they are similar becauze they measure temperature

6 0
3 years ago
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