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3 years ago

Which has a higher frequency a neutron or electron

Chemistry

1 answer:

guajiro [1.7K]3 years ago

8 0

Neutron or neutral and electran are positive

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How to find the mass of 12dm³ of hydrogen, H2

Soloha48 [4]

you can use the formula F=MA to find any mass of almost anything .

5 0

3 years ago

A mixture of coarse sand and sugar is 45.0 percent sand by mass. 120.0 grams (g) of the mixture is placed in a fine-mesh cloth b

8090 [49]

Answer:

Option E

Explanation:

From the question we are told that:

Amount of sand in percentage $s_p=45%$

Sample size $n=120g$

Note:After being dumped in the river repeatedly the sugar melts away leaving behind the insoluble sand

Generally the equation for Amount of sand content is mathematically given by

$X=n*s_p$

$X=120*\frac{45}{100}$

$X=54g$

Therefore

After drying, the mass of the contents of the bag equals

$X=54g$

Option E

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3 years ago

What is the concentration in mass percent of a solution prepared from 50.0g nacl and 150.0g of water?

otez555 [7]

M(NaCl)=50.0 g
m(H₂O)=150.0 g

m(solution)=m(NaCl)+m(H₂O)

w(NaCl)=100m(NaCl)/m(solution)=100m(NaCl)/{m(NaCl)+m(H₂O)}

w(NaCl)=100*50.0/(50.0+150.0)=25%

3 0

3 years ago

The molar mass of silver (Ag) is 107.87 g/mol.

Setler79 [48]

Answer:

3.53 g

Explanation:

To convert from atoms to moles, you need to know Avogadro's number. Avogadro's number (6.022 × 10²³) is how many atoms there are in one mole of a substance. Use this to convert.

(1.97 × 10²² atoms) ÷ (6.022 × 10²³ atoms/mol) = 0.0327 mol

Now that you have moles, use the molar mass to convert to grams.

(0.0327 mol) × (107.87 g/mol) = 3.53 g

4 0

3 years ago

Formula empirica del glutamato monosódico

Citrus2011 [14]

Answer:

C₅H₈NO₄Na

Explanation:

8 0

3 years ago