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likoan [24]
2 years ago
14

Metals are used in many products because of the characteristic properties that most metals have. Which product requires the high

luster of metals in order to work?
Chemistry
2 answers:
meriva2 years ago
7 0
The Answer is A. Mirrors. 

This is because a mirror has a sheet of metal behind the glass, perhaps silver, that reflects the light back, making an image.
oksano4ka [1.4K]2 years ago
3 0

Answer: Mirror

Explanation:

Metals have various properties such as they are ductile, malleable, good conductors of heat and electricity, lustrous.

Mirror uses the property of metals being lustrous in nature. Mirrors are used to reflect images. A glass is coated with metal at the back which acts a mirror. Metallic objects such as utensils also act as mirror since they reflect light. Our image can be seen on these metallic objects.

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In an isolated system:
ipn [44]

Answer:

isolated system (plural isolated systems) (physics) A system that does not interact with its surroundings. Depending on context this may mean that its total energy and/or momentum stay constant.

Explanation:

An isolated system is a thermodynamic system that cannot exchange either energy or matter outside the boundaries of the system. ... The system may be enclosed such that neither energy nor mass may enter or exit.

is there both?

7 0
3 years ago
5 points
Orlov [11]

Answer:

The correct option is (a).

Explanation:

We need to find the product of given numbers.

First number = 29.5

Second number = 240

Product of two numbers = 29.5 × 240

= \dfrac{295}{10}\times 240

Zeroes from numerator and denominator get cancelled.

So,

=295\times 24\\\\=7080

Hence, the correct option is (a).

7 0
3 years ago
Does data from mass spectrometry indicate that modern scientists have made modifications to Dalton''s model? Justify.
Gelneren [198K]
John Dalton was a scientist who proposed that all matter consists of atoms. At this stage, no one had yet discovered neutrons and the nucleus. As a result, Dalton's model consisted of a single atom i.e. the atom was the smallest object. 
A mass spectrometer is an instrument that is able to see what is inside an atom. Scientists have been able to prove that the item is not the smallest object in the world. Atoms are made up of smaller objects called protons, neutrons and electrons. 
We can, therefore, safely conclude that data  from mass spectrometry has helped modern scientists to make modifications to Dalton's model. <span>
</span>
5 0
3 years ago
The diagram below show an enlarged view of the beams of a triple-beam balance
VLD [36.1K]

Answer:

1) 455.2 g. 2) 545.2 g.

Explanation:

i think this is right

6 0
2 years ago
Dolphins use a method called echolocation to detect things such as obstacles and prey in the water. If a dolphin swimming in sea
JulsSmile [24]

Answer:

Dolphins use a method called echolocation to detect things such as obstacles and prey in the water. If a dolphin swimming in seawater at 25°C sends a 220-dB click with a frequency of 120.0 Hz, and then detects the reflection of the click exactly one-twentieth of a second later, approximately how far away is the object?

8 0
2 years ago
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