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alekssr [168]
3 years ago
9

Create a hypothesis that can be tested in an experiment​

Chemistry
1 answer:
sammy [17]3 years ago
8 0
<h3>Please mark me as Brainliest ........</h3>

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Elements can be described by various properties, and identified by their boiling and melting points. For example, gold melts at
Leni [432]

Answer:

Elements can be described by various properties, and identified by their boiling and melting points. For example, gold melts at

Elements can be described by various properties, and identified by their boiling and melting points. For example, gold melts at 1,064ºC and boils at 2,856ºC. Does boiling point depend on the mass present?

A. No; chemical properties stay the same regardless of mass.

B. No; physical properties stay the same regardless of mass.

C. Yes; physical properties can change when mass increases or decreases.

D. No; qualitative properties like boiling point stay the same regardless of mass.

Explanation:

3 0
2 years ago
Which subatomic particle is located outside the nucleus
Mrac [35]
Electrons is located outside the nucleus
5 0
3 years ago
Why is true about electron dot diagrams
vazorg [7]

Answer: The correct answer is the option: B. An element with eight valence electrons is chemically unstable.

Explanation:

Hello! Let's solve this!

We will analyze each of the options:

A. The group number of the element provides a clue to the number of valence electrons: it is correct, since it provides the number of valence electrons.

B. An element with eight valence electrons is chemically unstable: this is not correct, since elements with eight electrons in the valence shell cannot react because they already have the last complete shell. Therefore, they are chemically stable.

C. The points must be placed one at a time on each side of the chemical symbol: it is correct, because that is the way to make the point diagram.

D. An atom is chemically stable if all the points are paired: this is correct since this verifies that the point diagram has been done well.

We conclude that the correct answer is the option: B. An element with eight valence electrons is chemically unstable.

Hope this helps.....  Stay safe and have a Merry Christmas!!!!!!!!! :D

7 0
3 years ago
a piece of wood sinks in ethanol but floats in gasoline. what can you determine about the three different densities?
lakkis [162]
Wood sinks in ethanol => wood has higher density than ethanol.
wood floats in gasoline=> wood has lower density than gasoline
4 0
3 years ago
Read 2 more answers
Please help- science
maks197457 [2]

Answer:

2. Full

Explanation:

A lunar eclipse occurs at a full moon when Earth is directly between the moon and the sun. During a lunar eclipse, Earth blocks sunlight from reaching the moon.

Hope this helps!!

8 0
3 years ago
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