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Alekssandra [29.7K]
3 years ago
13

Jeff has night vision goggles and can see people and animals even if it is pitch black outside. What type of electromagnetic wav

e does Jeff use to make his goggles work?
Radio waves

Infrared radiation

Gamma radiation

X-Rays
Chemistry
1 answer:
forsale [732]3 years ago
7 0

Infrared radiation

Explanation:

The type of electromagnetic waves Jeff uses to make his goggles work are the infrared radiations.

Jeff is certainly using a night vision goggle to see in the dark . It senses infrared radiations

  • Infrared radiations are part of the electromagnetic spectrum.
  • Every hot objects gives off infrared radiations.
  • These googles have thermal imaging sensors that detects these radiations.
  • Naked eyes cannot see the radiations.
  • The heat emitted is a form of radiation called the infrared radiation.

learn more:

Electromagetic radiation brainly.com/question/6818046

#learnwithBrainly

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Answer:

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Explanation:

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8 0
3 years ago
A sample of gas contains 0.1100 mol of HBr(g) and 5.00x10^-2 mol of Cl2(g) and occupies a volume of 5.85 L. The following reacti
Vesna [10]

The volume of the sample after the reaction : V₂=5.484 L

<h3>Further explanation</h3>

Given

Reaction

2HBr(g) + Cl2(g) => 2HCl (g)+Br2(g)

0.1100 mol of HBr(g)

5x10⁻² mol of Cl2(g)

Required

The volume of the sample after reaction

Solution

Find limiting reactant :

0.11/2 : 0.05/1 = 0.055 : 0.05

Limiting reactant : Cl₂

mol Products based on mol Cl₂

mol products = mol HCl + mol Br₂

mol products = 2/1x0.05 + 1/1x0.05

mol products = 3 x 0.05 = 0.15

mol reactants = 0.11 + 0.05 = 0.16

<em>From Avogadro's law, </em>

In the same T, P, and V, the gas contains the same number of molecules  

So the ratio of gas volume will be equal to the ratio of gas moles  

 V₁/n₁=V₂/n₂

1 = reactants, 2 = products

Input the value :

5.85/0.16=V₂/0.15

V₂=5.484 L

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Answer:

10.56L

Explanation:

The following were obtained from the question given :

P1 = 845mmHg

V1 = 4.6L

P2 = 368mmHg

V2 =?

We can calculate the new volume by using Boyle's law as follows;

P1V1 = P2V2

845 x 4.6 = 368 x V2

Divide both side by 368

V2 = (845 x 4.6) / 368

V2 = 10.56L

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