1. Aluminum foil reacts with aqueous copper (II) chloride ( Type of Reaction:

Chemistry

1 answer:

zloy xaker [14]1 year ago

5 0

Answer:

I believe its a single replacement reaction

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Aleks [24]

Electron microscopes differ from light microscopes in that they produce an image of a specimen by using a beam of electrons rather than a beam of light. Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes

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2 years ago

When dilute HCL is added to zinc pieces taken in a test tube

Romashka-Z-Leto [24]

Answer:

zince chloride will be formed and hydrogen gas will be librated.

Explanation:

When dilute HCl is added to zinc pieces, a rection will takes place as follows :

$Zn+HCl\rightarrow ZnCl_2+H_2$

It means that zinc chloride will form when zinc reacts with dilute HCL. Also hydrogen gas will produced.

As zinc is more reactive than hydrogen, it displaces hydrogen from its solution and forms zinc chloride. The form product is white in color and H₂ is an odorless gas.

Hence, zince chloride will be formed and hydrogen gas will be librated.

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2 years ago

How many atoms are present in 34.69 moles of Mg

shusha [124]

<span>Avogadro's number.

1 mole of any substance, molecule or element is equal to a certain amount of atom.

6.022 x 10^23 is the Avogradro's constant.

Magnesium Oxide is a compound. therefore if you have 30.3 g of it (1 mol), it will have the same number of atoms.

34.69 moles of MgO has 208.9 x 10^23 number of atoms.

2.089 x 10^25 is also a correct answer.</span><span>
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7 0

2 years ago

Plz can anyone help me I'm a bit stuck in this one

trasher [3.6K]

Answer:

just see if i am not wrong

learning balancing in chemistry it take time

hope i am correct

8 0

2 years ago

What type of rays result in shorter days? (science)

OLEGan [10]

Answer:

verical rays

Explanation:

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2 years ago