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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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Pls help me
olga2289 [7]
Answer is: <span>b.20.0 L </span><span>liters of ammonia are needed to react completely.
</span>V(NO) = 30 L.
n(NO) = V(NO) ÷ Vm.
n(NO) = 30 L ÷ 22,4 L/mol.
n(NO) = 1,34 mol.
From chemical reaction: n(NO) : n(NH₃) = 6 : 4 (3 : 2).
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3 0
3 years ago
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A solution is made by dissolving 85.0 mL of sodium fluoride to water until the final volume is 350.0 mL. Identify the solute in
Natasha_Volkova [10]

Answer:

  • <u><em>Sodium fluoride</em></u>

Explanation:

A <em>solution </em>is constituted by two parts: the solute and the solvent (there may be more than 1 solute and more than 1 solvent, but that is not the key of the answer).

<em>Solute</em> is the substace that is dissolved and it is in less amount than the solvent.

<em>Solvent</em> is the substance that can dissolve the solute and it is a greater amount than the solute.

In the given solution:

  • <em>sodium fluoride</em>, <em>85.0 mL</em>, is the solute,
  • <em>water</em>, <em>350.0 mL</em> is the solvent, and
  • the mixture of both substances is the solution.
8 0
3 years ago
A 5.5 gg sample of a substance contains only carbon and oxygen. Carbon makes up 35%% of the mass of the substance. The rest is m
Elan Coil [88]

Answer:

a. ((100 - 35)/100) times 5.5 grams = 3.575 g

Explanation:

Given that:

The sample of carbon and oxygen = 5.5g

where carbon makes 35% of the mass of the substances.

It implies that oxygen will make: (100 - 35)% = 65%

Suppose y be the mass of the oxygen;

Then:

y = \dfrac{(100-35)}{100} \times 5.5 \ g

y = \dfrac{(65)} {100} \times 5.5 \ g

y = 3.575 \ g

The mass of carbon = \dfrac{35}{100} \times 5.5 \ g

= 1.925 g

7 0
3 years ago
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