Answer:
A-5N B-6N C-7N D-8NExplanation:
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pLeeease help im so tired and i need to SLEEP. Answer the 1s you know
1. How does the mechanical energy of a ball that is starting to fall compare to its total energy just before it hits the floor?
2. When you stand in sunlight, what form of energy is emitted by the sun?
3. An eye doctor wants to design reading glasses that also function as sunglasses. Should the eye doctor use a reflective-transparent material or a reflective-opaque material for the lenses? Support your claim.
what is this element
Answer:
Oxygen
Explanation:
From the question given above, the following data were obtained:
Number of electrons = 8
Number of protons = 8
Number of Neutrons = 8
Name of element =?
Next, we shall determine the atomic number of the element. This can be obtained as follow:
The atomic number of an element is simply defined as the number of protons in the atom of the element. Mathematically, it is expressed as:
Atomic number = proton number
From the question given above,
Number of protons = 8
Therefore,
Atomic number = 8
Comparing the atomic number of the element (i.e 8) with those in the periodic table, we can conclude that the element is oxygen since no two elements have the same atomic number.
If 2.35 L hydrogen gas react with nitrogen gas to form nitrogen trihydride, how many grams of nitrogen will be needed for the reaction to be completed?
0.98 g
0.49 g
21.93 g
1.47 g
Answer:
1.47 g
Explanation:
help put them in order
Answer:
hello
Explanation:
hi