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Daniel [21]
3 years ago
7

___Al+NaOH=>__Na3AlO3+H2

Chemistry
1 answer:
MaRussiya [10]3 years ago
8 0

Explanation:

<em><u>2Al + 2NaOH + 6H2O → 2Na[Al(OH)4] + 3H2</u></em>

<em><u>...</u></em>

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No attempt was made to test sodium with hydrochloric<br> acid. Why not?
Fiesta28 [93]

Answer:

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Explanation:

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2 years ago
Is ketchup a heterogeneous or homogeneous mixture? Explain your reasoning.
Norma-Jean [14]
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6 0
3 years ago
30 POINTS PLEASE HELP ASAP
lina2011 [118]

Hello!

We have the following data:

f (radiation frequency) = 3.0*10^{19}\:Hz

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Let's find the wavelength, let's see:

f = \dfrac{v}{\lambda}

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\boxed{\boxed{\lambda = 1*10^{-11}\:m}}\Longleftarrow(wavelenght)\end{array}}\qquad\checkmark

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4 0
3 years ago
How many atoms are in 8.1 moles of oxygen? And how do you know?
son4ous [18]

Answer:

4.88 x 10²⁴atoms

Explanation:

Given parameters:

Number of moles of oxygen = 8.1moles

Problem:

To find the number of atoms in 8.1moles of oxygen.

Method in solving the problem:

We know that a mole of a substance contains Avogadro’s number of particles which is 6.02 x 10²³

The particles can be molecules, atoms, etc.

Solution:

From the concept of mole,

Number of atoms =

number of moles x 6.02 x 10²³

Number of atoms = 8.1 x 6.02 x 10²³

Number of

atoms of oxygen = 48.8 x 10²³ atoms

= 4.88 x 10²⁴atoms

4 0
3 years ago
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