Why is a thermos considered a (mostly) closed system? Question 3 options: different types of liquids stay hot thermoses come in different shapes and sizes different types of hot or cold items can be stored in a thermos matter and energy cannot enter or leave the system when the thermos lid is on tightly

Answers

Answer 1

Answer:

Answer:

Different types of hot or cold items can be stored in a thermos and power cannot enter or exit the system when the thermos lid is tightly closed

Explanation:

Closed systems are those that do not interact or do not exchange energy with the environment that surrounds them, that is why internal temperatures and conditions are maintained.

The human body is an open system, that is, it would be the opposite of the thermos since we constantly exchange energy with the environment through sweating, emission of gases, urine, feces, and the ingestion of food.

Thermoses are systems specially created to maintain a medium, it will be maintained if its lid is hermetically closed to prevent heat leakage or entry in situations of cold fluids.

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An effective collision between reactant particles requires the particles to have the proper what?
Calculate the density of a rectangular metal bar that is 7.00 cm long, 4.00 cm wide, and 1.00 cm thick and has a mass of 352 g is?

Given the balanced equation representing a reaction occurring in an electrolytic cell:

Answers

An electrolytic cell where electrolysis occurs which consists of an electrolyte where current from an outside source is passed through in order to produce an electrochemical cell.

Which is evidence that scientists use to support the big bang theory? A.
There is constant cosmic background radiation.

B.
Galaxies are moving toward each other.

C.
A loud explosion can be heard in the radio frequencies everywhere in the universe.

D.
Hydrogen and helium are the most abundant elements in the universe.

Answers

The right answer for the question that is being asked and shown above is that: "C. A loud explosion can be heard in the radio frequencies everywhere in the universe." The evidence that scientists use to support the big bang theory is that A loud explosion can be heard in the radio frequencies everywhere in the universe.

Eugen Goldstein discovered in 1886 that atoms also have _________ charges.a. neutral
b. positive
c. negative

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The correct answer for the question that is being presented above is this one: "b. positive" Eugen Goldstein discovered in 1886 that atoms also have positive charges. He was a German physicist and an early investigator of discharge tubes. He also discovered the anode rays.

Which is a mixture?potassium metal

chlorine gas

potassium chloride

potassium and chlorine

Answers

Answer : The correct option is potassium and chlorine.

Explanation :

Mixture : It is a substance which is made by the combination of two or more things in such a way there is no chemical reaction occurs.

For example : Sand and water, oil and water, milk and chocolate, etc.

Potassium is a metal.

Chlorine is a gas.

Potassium chloride is a compound.

Potassium and chlorine is a mixture.

A mixture is potassium and chlorine. A mixture is a combination of pure substances that have no definite composition. It may be either a homogenous or heterogeneous.

The stability of an isotope is based on its(1) number of neutrons, only
(2) number of protons, only
(3) ratio of neutrons to protons
(4) ratio of electrons to protons

Answers

Option 4. ratio of electrons to protons

Isotope that has atomic number of 82 is stable. An element that has an atomic number ∠82 more stable except Tc and Pm. Also there is the concept that isotopes consisting a combination of even-even,even-odd,odd-even, and odd-odd are all stable. Many isotopes with no magic numbers of nucleons are stable

The two ways that energy can be transferred are as heat or as work. True or False?

Answers

the correct answer would be false

The answer is True, I've taken this test.

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The main energy products currently being obtained from the ocean floor are oil and _____.