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inna [77]
2 years ago
10

Is any one in connections academy inedd unit 5 unit test answrs now

Chemistry
1 answer:
Usimov [2.4K]2 years ago
7 0
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If an atom with a mass number of 27 has 14 neutrons,it is an isotope of which element​
kkurt [141]

Answer:

the number of neutrons in above isotope = A - Z = 27 - 13 = 14. Note: The molar mass of aluminium, which is average of atomic masses of all isotopes = 26.981538 g/mol, since 13Al27 is the major isotope.

Explanation:

   

5 0
3 years ago
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What is the gravitational force between two masses of 1 kg each kept at the distance of 1m?​
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Answer:

<h2>F=Gm1m2r=G×1×11=G</h2>

Explanation:

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6 0
3 years ago
Which of the following is a properly written formula for a compound between copper and bromine? CuBR CUBR CuBr CUBr
drek231 [11]
Elements are represented by their symbols with the first letter capitalized and the rest in lowercase. Copper is represented by Cu and Bromine is represented by Br. When combined to for a compound, the format of the symbols remain. Hence, the correct format would be CuBr. Thus, the answer is C: CuBr<span>.</span><span />
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3 years ago
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How many significant figures are in 0.000128?
san4es73 [151]
Three sig figs, the leading zeros are not sig figs
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3 years ago
Which of the following is the chemical formula for Hydrogen Chloride?
anygoal [31]

Answer:

The answer is (b) HCl

Explanation:

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