Objects that are hotter will generally emit _____.

1 answer:

5 0

They emit b) more radiation compared to cooler objects.

This is because hotter objects have more kinetic energy (in order for the particles to vibrate- and so more infrared radiation circulates in its surroundings.)

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Which of the following statements BEST explains dissolution?

nordsb [41]

I had the same question, it's most likely B.

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The Greek letter delta (triangle sign) above the arrow in a chemical equation means.

kogti [31]

“yields” or “produces”

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denis23 [38]

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The graph shows the solubility of several different salts in water, across a range of temperatures. According to the

sladkih [1.3K]

Answer:

Sodium chloride

See the graph attached

Explanation:

The attached graph with a green and a red arrow facilitates the understanding of this explanation.

To read the solubility on the graph, you can start with the temperature, on the x-axis.

The red vertical arrow shows how, departing from the 40ºC temperature on the x-axis, you intersect the solutibility curve of sodium chloride at a height (y-axis) corresponding to 60 g/100cm³ of water (follow the green horizontal arrow).

Hence, sodium chloride is the salt that can dissolve at a concentration of about 60g/100cm³ of water at 40ºC.

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What is the relationship between relative size of an ion and its neutral atom and the charge on the ions?

Vsevolod [243]

With the addition of an electron causing a negative charge, an ion is larger than normal but with loss of an atoms electron, the positive ion is smaller. if the atom loses an electron, the ion is relatively smaller than the atom and it becomes positive. if the atom gains an electron, the ion is relatively bigger than the atom and it becomes negative.

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