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Yuri [45]
2 years ago
7

Why would scientists use a spectrometer in space.

Chemistry
2 answers:
Rzqust [24]2 years ago
8 0
A to study the chemical composition of the surface of a planet would be correct
solniwko [45]2 years ago
6 0

Answer:

A. To study the chemical composition of the surface of a planet

Explanation:

Strictly speaking, a spectrometer is any instrument used to view and analyze a range (or a spectrum) of a given characteristic for a substance (for example, a range of mass-to-charge values as in mass spectrometry), or a range of wavelengths as in absorption spectrometry like nuclear magnetic radiation spectroscopy

-hope this helps!

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Phosphorus pentachloride reacts with water to give phosphoric acid and hydrogen chloride according to the following equation:
Anarel [89]

Answer: 52.4 grams

Explanation:

The two reactants PCl5 and H2O, must occur in a 1:4 ratio, so that tells us, that we need 4 times more H₂O than phosphorus pentachloride.

0.287 moles PCl5 multiplied by 4 equal 1.15 moles H2O. That tell sus that 1.15 moles H2O is needed.

Because we have 3.84 moles H2O, the PCL5 is the limiting reactant.

0.287 mol PCl₅ x (5 mol HCl divided by 1 mol  of PCl₅) x ( 36.5g HCl divided by moles of HCl) = 52.4 g of HCl is formed

(Hopefully this helps!)

5 0
3 years ago
Read 2 more answers
What is needed for our cells to get energy from our food?
denis-greek [22]

Answer:

cellular respiration is needed for our cells to get energy from our food.

Explanation:

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

5 0
3 years ago
An organism from the past that is related to all the organisms in the group is called?​
Drupady [299]

Answer:

Phylogeny

Explanation:

In shorter words

7 0
3 years ago
At 170C, a sample of hydrogen gas occupies 125cm3. What will be the volume at 1000C? =161cm3 If the volume of a given mass of ga
pickupchik [31]

1. V= 161

2. V = 37.3

<h3 /><h3>Further explanation  </h3>

Charles's Law states that  

<em>When the gas pressure is kept constant, the gas volume is proportional to the temperature  </em>

\tt \dfrac{V1}{T1}=\dfrac{V2}{T2}

1.

\tt \dfrac{125}{17+273.15~K}=\dfrac{V2}{100+273.15}\\\\V2=160.7\rightarrow 161~cm^3

2.

\tt \dfrac{27.3}{0+273.15`K}=\dfrac{V2}{100+273.15}\\\\V2=37.3~cm^3

3 0
3 years ago
Which are factors scientists use to classify orders of soil?
Sergio039 [100]

Answer:

Soils are a function of the five soil-forming factors: climate, organisms, relief, parent material, and time. Each of these factors range on a continuum, so the different soils of the world number in the thousands. Soil scientists recognize 12 major orders of soils.

Explanation:

8 0
3 years ago
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