When we say an object is hot, we are describing its velocity thermal energy wavelength chemical energy?

1 answer:

3 0

I think the correct answer from the choices listed above is the second option. When we say an object is hot, we are describing its thermal energy. It is the energy that comes from heat. This heat is generated by the movement of tiny particles within an object. Hope this answers the question.

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Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula f

AfilCa [17]

Answer:

D. Na₃X

Explanation:

We have the neutral compound Ba₃(X)₂. The total charge (zero) is equal to the sum of the charges of the ions times the number of ions in the molecule.

3 × qBa + 2 × qX = 0

3 × (+2) + 2 × qX = 0

2 × qX = -6

qX = -3

If we have the cation Na⁺ and X³⁻, a neutral molecule would require 3 Na⁺ and 1 X³⁻. The resulting compound is Na₃X.

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Ilia_Sergeevich [38]

I would say only two

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Please write down the definitions of elements, compounds, mixtures, homogenous mixtures, and heterogenous mixtures.

MA_775_DIABLO [31]

A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.

A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.

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What type of reaction provide energy within a red giant star? and how come?

Dafna1 [17]

"A red giant is a star that has exhausted the primary supply of hydrogen fuel at its core. An average-sized star like our Sun will spend the final 10 percent of its life as a red giant. In this phase, a star's surface temperature drops to between 3,140 and 6,741°F (1,727 and 3,727°C) and its diameter expands to 10 to 1,000 times that of the Sun. The star takes on a reddish color, which is what gives it its name."

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Compare the costs of using renewable resources to the costs of using nonrenewable resources.

Vitek1552 [10]

Answer:

Sample response:

The costs of using both renewable and nonrenewable resources depend on the extent of the use. If renewable resources are managed wisely, the use of the resource will not exceed the rate at which it is replenished. In this instance the cost of using renewable resources can be minimized, if not entirely eliminated. The cost of using nonrenewable resources is harder to minimize because nonrenewable resources cannot be replenished at the rate at which they are used. The environmental impact of using nonrenewable resources such as fossil fuels is greater than just the loss of the resource itself. Other impacts such as acid rain, global warming, and atmospheric pollution can result from the use of nonrenewable resources.

Explanation:

2021 edge

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