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barxatty [35]
2 years ago
15

The process that fuels a star is BEST described as________.

Chemistry
1 answer:
erik [133]2 years ago
6 0
Hydrogen fusion is the answer. It is also known as <span>hydrogen burning. </span>
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In the third period of the periodic table sodium is followed by magnesium aluminum silicon and phosphorus which of these element
wariber [46]
Answer:
            Phosphorous has the smallest atomic size.

Explanation:
                   As we know these elements belong to same period means there valence shell is the same. So moving from left to right along the period the shell number remains constant but the number of protons and electrons increases. So, due to increase in number of protons the nuclear charge increases hence attracts the valence electrons more effectively resulting in the decrease of atomic size.

Elements and their atomic radius are as follow,

<span><span>Magnesium          0.160 nm
</span><span>
Aluminium           0.130 nm
</span><span>
Silicon                  0.118 nm
</span><span>
Phosphorus         <span>0.110 nm</span></span></span>
6 0
3 years ago
Pleeease answer! 10 POINTS
Korvikt [17]

It is false because an endothermic reaction will also start when energy is received from the environment when there is no solution involved

6 0
3 years ago
An element is any substance that cannot be broken down into simpler substances. The smallest unit of an element is called an ___
Svetradugi [14.3K]

Answer:

An Atom

Explanation:

An atom is the smallest unit of matter

3 0
3 years ago
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Maurinko [17]

Answer:

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Explanation:

5 0
3 years ago
The equation for the formation of water from its elements, h2(g) + o2(g)  h2o(l), can be "balanced" by changing the formula of
ANTONII [103]
You can’t have 2 oxygens
5 0
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