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nata0808 [166]
2 years ago
12

What occurs during a solar elcipse

Chemistry
2 answers:
djverab [1.8K]2 years ago
8 0

Answer:

A solar eclipse happens when the moon moves in front of the Sun as seen from a location on Earth. During a solar eclipse, it gets dimer and dimmer outside as more and more of the Sun is covered by the Moon. During a total eclipse, the entire Sun is covered for a few minutes and it becomes very dark outside. The temperature outside also drops.

solong [7]2 years ago
7 0

Answer:

the moon gets infront of the sun

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Suppose you believe your unknown compound is NaOH, and you prepare 20 mL of a 0.1 mol/L solution of it. The stockroom provides a
Alexus [3.1K]

Answer : Volume of HCl ( in ml)  is 10 ml.

Solution : Given,   Concentration of NaOH = 0.1 mol/L

                                Volume of NaOH = 20 ml

                                Concentration of HCl = 0.2 mol/L

                                 Volume of HCl =  ?

    Formula used :   Moles = Volume ×  Concentration

    In the reaction, we see that 1 mole of NaOH react with the 1 mole of HCl.

    so,

                       Moles of NaOH = Moles of HCl

    Moles of HCl = Moles of NaOH = Volume of NaOH ( in L) × Concentration of NaOH

    Converstion ml into L :      1000 ml = 1 L

             Moles of HCl =  \frac{20}{1000} × 0.1

                                    =  0.002 mol

             Volume of HCl = Moles / Comcentration of HCl

                                       = \frac{0.002 mole}{0.2mole/L}

                                       =  0.01 L

             Volume of HCl (in ml) =  0.01 × 1000 = 10 ml



7 0
3 years ago
Classify each of the following elements as
tino4ka555 [31]

Answer:Silicon is neither metal nor non-metal; it's a metalloid, an element that falls somewhere between the two. The category of metalloid is something of a gray area, with no firm definition of what fits the bill, but metalloids generally have properties of both metals and non-metals.

Explanation:

5 0
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Alex787 [66]

Answer:

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Explanation:

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However, an opposing force called nuclear attractive force tends to hold the nucleons together. This attraction occurs when two nucleons are bonded by a particle called a π meson.

Hence, the two forces that act in the nucleus to create a  'nuclear tug-of-war' are electrostatic repulsion and a strong nuclear force.

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3 years ago
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An independent variable is what you___in an experiment. (There are no selections so please just answer it)
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