2 years ago

What is mass? What instrument is used to measure mass? What are the basic units of mass?

1 answer:

6 0

Mass is an amount of substance present in a body. mass is measure with the help of triple beam balance. the unit of mass are kilogram, gram etc.

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Mama L [17]

Answer:

Explanation:

3 CARBON ATOMS 8 HYDROGEN

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3 years ago

Darina [25.2K]

It is True 100%.

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3 years ago

never [62]

Answer:

pH = 5.47

Explanation:

The equilibrium that takes place is:

HIO ↔ H⁺ + IO⁻

Ka = $\frac{[H+][IO-]}{[HIO]}$ = 2.3 * 10⁻¹¹

At equilibrium:

<u>Replacing those values in the equation for Ka and solving for x:</u>

$Ka=\frac{x^2}{0.5-x}=2.3*10^{-11} \\x^2=(2.3*10^{-11})(0.5-x)\\x^2=1.15*10^{-11}-2.3*10^{-11}x\\x^2+2.3*10^{-11}x-1.15*10^{-11}=0\\x=3.39*10^{-6}$

Then [H⁺]=3.39 * 10⁻⁶, thus pH = 5.47

7 0

3 years ago

Vlada [557]

Because matter cannot be created or destroyed

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3 years ago

RSB [31]

Cellar respiration simple if u need explanation just search up

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2 years ago