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3 years ago

Balance zn+hno3-zn(no3)2+nh4no3+h20 by partial equation method

Chemistry

1 answer:

SSSSS [86.1K]3 years ago

5 0

Answer:

−2

→

(

−2

)

−3

−2

Explanation:

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3 years ago

A metal oxide with the formula mo contains 15.44% oxygen. in the box below, type the symbol for the element represented by m.

lana66690 [7]

<u>Answer:</u> The element represented by M is Strontium.

<u>Explanation:</u>

Let us consider the molar mass of metal be 'x'.

The molar mass of MO will be = Molar mass of oxygen + Molar mass of metal = (16 + x)g/mol

It is given in the question that 15.44% of oxygen is present in metal oxide. So, the equation becomes:

$\frac{15.44}{100}\times (x+16)=16g/mol\\\\(x+16)=\frac{16g/mol\times 100}{15.44}\\\\x=(103.626-16)g/mol\\\\x=87.62g/mol$

The metal atom having molar mass as 87.62/mol is Strontium.

Hence, the element represented by M is Strontium.

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Fluoride is commonly used in dentistry to strengthen enamel, which is the outer layer of your teeth. Fluoride helps to prevent cavities. It’s also added in small amounts to public water supplies in the United States and in many other countries. This process is called water fluoridation.

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The chemical name for Rb2S is Rubidium Sulfide

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Explanation:

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3 years ago

Balance zn+hno3-zn(no3)2+nh4no3+h20 by partial equation method​

Balance zn+hno3-zn(no3)2+nh4no3+h20 by partial equation method