2 years ago

True or False: Neutrons have both a positive and negative charge

Chemistry

2 answers:

kvv77 [185]2 years ago

8 0

Answer:

false

Explanation:

uysha [10]2 years ago

7 0

Answer:

false

Explanation:

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Which of the following represents the least number of molecues?

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Answer:

Answer: a) 20g of H2O (18.02 g/mol) molecules=6.68x10^23

Explanation:

In order to find the amount of molecules of each of the options, we need to follow the following equation.

$molecules=\frac{mass(g)x6.022x10^{23}(molecules/mol) }{atomic weight(g/mol)}$

So, let´s get the number of molecules for each of the options.

$a) molecules=\frac{20(g)x6.022x10^{23}(molecules/mol) }{18.02(g/mol)}=6.68x10^{23}molecules$

$b) molecules=\frac{77(g)x6.022x10^{23}(molecules/mol) }{16.06(g/mol)}=2.89x10^{24}molecules$

$c) molecules=\frac{68(g)x6.022x10^{23}(molecules/mol) }{42.09(g/mol)}=9.73x10^{23}molecules$

$d) molecules=\frac{100(g)x6.022x10^{23}(molecules/mol) }{44.02(g/mol)}=1.37x10^{24}molecules$

$d) molecules=\frac{84(g)x6.022x10^{23}(molecules/mol) }{20.01(g/mol)}=2.53x10^{24}molecules$

the smalest number is in option a)

Best of luck.

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Which statement about the United Nations is an

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The first one because some people might not believe that and others might believe that.

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A heptagon has six sides.<br> a. True<br> b. False

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B) False- It has seven
A hexagon would have 6.

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What isapplied in case where the base is not a OH donator

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It will received an H+. I’m not sure if that answers your question correctly

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Mrs. Dodge's class is studying minerals. Mrs. Dodge wants her class to complete a test to find out the color of minerals found i

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