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Levart [38]
3 years ago
15

Who was the first person to go to the moon​

Chemistry
2 answers:
mestny [16]3 years ago
8 0

Answer:

The first person to go to the moon

Explanation:

Neil Armstrong was the first person !

heres more info on NASAs page!

https://www.nasa.gov/audience/forstudents/k-4/stories/first-person-on-moon.html

Julli [10]3 years ago
4 0

<em>the</em><em> </em><em>first</em><em> </em><em>person</em><em> </em><em>to</em><em> </em><em>go</em><em> </em><em>on</em><em> </em><em>moon</em><em> </em><em>was</em><em> </em><em>Niel</em><em> </em><em>Armstrong</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>

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The term that best describes a 10-gram of KCIO3 per 100 grams of water solution at 30 degrees celsius is:
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The term that best described a 10 gram of KClO3 per 100 grams of water solution at 30 degree Celcius is Saturated. The solubility chart is needed for this work. If the solubility chart is drawn for KClO3, it will be observed that the proportion of KClO3 that is needed to dissolve in 100ml of water to make the solution saturated is 10 grams at 30 degree Celcius.
3 0
3 years ago
How much energy is required to heat 36.0 g H2O from a liquid at 65°C to a gas at 115°C? The following physical data may be usefu
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Answer:

energy required=qnet=87.75kJ

Explanation:

we will do it in three seperate step and then add up those value.

first step is to heat the sample of water upto 100C i.e upto boiling pont. because just after this sample of water started vaporization.

q 1= m c (T2-T1)

q1 = 36.0 g (4.18 J/gC) (100 - 65 C)

q1 = 5267 J =5.267kJ

next is to vaporize the sample at 100C

q2 = 36.0 g / 18.0 g/mol X 40.7 kJ/mol

q2= 81.4 kJ

Finally, heat the steam upto 115C

q3 = m c (T2-T1)

q 3= 36.0 g (2.01 J/gC)(115-100C)

q3 = 1085 J =1.085kJ

qnet=q1 +q2 +q3

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8 0
3 years ago
How can an invasive species like weeds affect crops on a farm?
Hoochie [10]

Answer:

E

Explanation:

All of the above

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3 years ago
What are observations that indicate a chemical change has occurred ?
sukhopar [10]

Answer:

Change of odor

Change of color

Change in temperature

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4 0
3 years ago
When energy is added to a substance at constant volume and pressure, its temperature increases except ________.
Travka [436]

A. When the substance is in its gaseous state.

<u>Explanation:</u>

When a substance is expanding against its constant volume and pressure, its temperature increases except when the substance is in gaseous state and not in liquid or solid state. So the internal energy increase in the system not only increases and maintaining the volume and pressure of the system remains constant in its gaseous phase. In the first law of Thermodynamics, it is used specifically that to especially in the case of gaseous system.  

<u></u>

7 0
3 years ago
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