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LiRa [457]
3 years ago
15

Compare and contrast a white dwarf and a black dwarf. Be sure to explain similarities and differences. IN YOUR OWN WORDS PLEASE

​
Chemistry
1 answer:
aivan3 [116]3 years ago
6 0
Well, what I know is that a white dwarf is formed when stars explode? Wait, no. Uh.. um.. still thinking.. wait.
When the sun explode, it will become a white dwarf because it lost all of its gas it uses to get itself moving.
Wait-
What grade is this? Cause I’m in 7th grade?
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3 0
4 years ago
What is the molarity of a solution of 1/2 mol of cu(no3)2 in 1/2 L water
sweet [91]
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6 0
4 years ago
Read 2 more answers
Can someone assist me with this chemistry question please?​
telo118 [61]

Answer:

490 J.

Explanation:

The following data were obtained from the question:

Mass (m) = 5 Kg

Height (h) = 10 m

Acceleration due to gravity (g) = 9.8 m/s²

Potential energy (P.E) =..?

Potential energy is the energy stored in a body by virtue of its location. Mathematically, it can be expressed as:

P.E = mgh

Where:

m is the mass of the object measured in kilograms (Kg).

g is the acceleration due to gravity and the value is 9.8 m/s².

h is the height to which the object is located measured in metre (m)

P.E is the potential energy measured in joule (J).

With the above formula, we can obtain the potential energy possed by the object as follow:

P.E = mgh

P.E = 5 x 9.8 x 10

P.E = 490 J

The,the potential energy possed by the object is 490 J

5 0
3 years ago
* Who can help with this lol *
Viktor [21]

Answer: subduction and sea floor spreading

Explanation:

He knew that the continents today were once joined together by fossil records of plants and animals that were found to be on continents far removed from each other. He knew this also by corresponding land forms that matches up as well. What he couldn’t prove is how the land masses would have moved so far away from each other. Subduction and sea floor spreading move the tectonic plates that the continents sit on. That’s what he was missing.

5 0
3 years ago
Balance the following equation<br> mg(s)+ HCl H2)g)+MgCl2
Marat540 [252]
<h3>Given equation:-</h3>

\\ \sf\longmapsto Mg+HCl\longrightarrow MgCl_2+H_2

<h3>BALANCED EQUATION:-</h3>

\\ \sf\longmapsto Mg+2HCl\longrightarrow MgCl_2+H_2

6 0
3 years ago
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