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4 years ago

The rows from left to right in the periodic table is called what

Chemistry

1 answer:

Mandarinka [93]4 years ago

7 0

Answer:

The periodic table has rows that go left to right and columns that go up and down, just like any other grid. The rows are referred to as PERIODS, while the columns are referred to as GROUPS.

Explanation:

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Which has the highest boiling point A. distilled water B.pure water c.salty water D. tap water

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Explanation:

A distilled water is the correct anwser

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3 years ago

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It would use rapid combustion

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4 years ago

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Calculate the mass of vanadium(V) oxide (V2O5) that contains a million (1.0 *10^6) vanadium atoms. Be sure your answer has a uni

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Answer : The mass of vanadium(V) oxide will be $1.51\times 10^{-16}g$

Explanation : Given,

Number of atoms of $V_2O_5$ = $1.0\times 10^{6}$

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In $V_2O_5$ , there are 2 atoms of vanadium and 5 atoms of oxygen.

First we have to determine the moles of $V_2O_5$ .

As, $2\times 6.022\times 10^{23}$ number of vanadium atom present in 1 moles of $V_2O_5$

So, $1.0\times 10^{6}$ number of vanadium atom present in $\frac{1.0\times 10^{6}}{2\times 6.022\times 10^{23}}=8.3\times 10^{-19}$ moles of $V_2O_5$

Now we have to determine the mass of $V_2O_5$ .

$\text{Mass of }V_2O_5=\text{Moles of }V_2O_5\times \text{Molar mass of }V_2O_5$

$\text{Mass of }V_2O_5=(8.3\times 10^{-19}mole)\times (181.88g/mole)=1.51\times 10^{-16}g$

Therefore, the mass of vanadium(V) oxide will be $1.51\times 10^{-16}g$

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4 years ago

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Un medicamento corresponde a una disolución de "nafazolina" (sustancia activa) en agua purificada, en una concentración de 12% V

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Answer:

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Según la pregunta;

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volumen de fármaco = V / V% × volumen de solución

volumen de fármaco = 12/100 × 100

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3 years ago

Need help fast please 20 points

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Answer:

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Explanation:

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3 years ago

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The rows from left to right in the periodic table is called what​

The rows from left to right in the periodic table is called what