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3 years ago

100 POINTS !!!! TO RIGHT AWNSER!!!

Chemistry

2 answers:

myrzilka [38]3 years ago

4 0

I think the answer is C

that was the right answer when I did the test!

Alecsey [184]3 years ago

3 0

The answer is going to be C) because
A)We know that she put all three boxes in the window and let them sat their for a hour
B)We know that the boxes are the same size
C)She used three different materials,and she wants to measure the warmth of each box. To see which one is the warmest
D)She never said anything about mass
Hopes This Helps:)

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Splitting nuclei is called __________ and joining nuclei is called _________.

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13. Fill in the following table

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Answer:

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1. Discuss briefly system and surrounding using suitable examples, highlighting heat transfers. 14 marks

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A system is a part of the physical universe defined arbitrarily for observation purposes.

Boundaries are a part of the physical universe that are around the system.

In a scientific sense, a system is a part of the physical universe whose boundaries, that is, the limit between the system and its surroundings, are defined arbitrarily for observation purposes.

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An example is a coffee-maker, where coffee-maker the system and air represents the surroundings, the coffee-maker receives energy from a heat source to warm up itself and releases part of such energy to the air.

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3 years ago

What is created by the fusion of three helium nuclei?

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Answer:

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2 years ago

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How can helium exist in three different forms

saul85 [17]

Explanation:

Helium exists in three different forms due to the phenomenon of isotopy. Isotopy is the existence of two or more atoms of the same element having the same atomic number but different mass numbers due to the differences in the number of neutrons in their nuclei.

The atoms of these elements are called isotopes.
This is why Helium can exist in three different forms.
Isotopes have the same electronic configuration but with the same chemical properties.

Learn more:

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