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4 years ago

Aluminum is an example of

Chemistry

2 answers:

ale4655 [162]4 years ago

4 0

An Element, hope i helped out

lisov135 [29]4 years ago

3 0

Hi friend,

Aluminium is an element. Just look in to the periodic table. Al is in group 3A and it means it is an element. Everything in the periodic table is element there is not compound or alloy or solution or anything else but elements in periodic table.

Hope it helps.........

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Describe how you could show by adding aqueous sodium hydroxide and aqueous ammonia that a solution contained zinc ions.

Pavel [41]

Answer:

*result with sodium hydroxide: white ppt of Zn(OH)2

*excess sodium hydroxide: Precipitate dissolves to form a COLOURLESS solution

*Result with Aqueous ammonia: White ppt of Zn(OH)2

*excess aqueous ammonia: Precipitate dissolves to form a COLOURLESS solution

7 0

3 years ago

How many moles of H2 are needed to react with 4.8 mol of O2 ?

VLD [36.1K]

Answer:

9.6 mol

Explanation:

Start by writing out the balanced equation of the reaction.

2 $H_{2}$ + $O_{2}$ ⇒ 2 $H_{2}O$

Here you will see 2 mol of hydrogen for every 1 mol of oxygen. Using this ratio, you can assume the amount of hydrogen will always be double that of oxygen. In this case, 4.8 * 2 = 9.6

5 0

2 years ago

Ammonia gas has a molar mass of approximately 17 grams per mole. At 290k and 1.2 atm, a sample of ammonia has a volume of 3.7 L.

dlinn [17]

We have that for the Question, it can be said that the mass of Ammonia is

Mass_a=3.162grams

From the question we are told

Ammonia gas has a molar mass of approximately 17 grams per mole. At 290k and 1.2 atm, a sample of ammonia has a volume of 3.7 L. In three to five sentences, explain how you can find the mass of the ammonia. Then, given R= 0.0821L.atm/mol.k, calculate the mass.

Generally the equation for the is mathematically given as

$PV=nRT\\\\n=\frac{PV}{RT}\\\\n=0.186 moles\\\\$

Now the mass of ammonia is

$Mass_a=0.186*17\\\\Mass_a=3.162grams$

Hence the mass of Ammonia is

Mass_a=3.162grams

For more information on this visit

brainly.com/question/23379286

3 0

3 years ago

Read 2 more answers

To determine the specific heat capacity of copper, Alyssa performed an investigation by which she dropped a heated piece of copp

user100 [1]

Answer:

0.446

Explanation:

ccu = 3035.655 / 104 g x (98.9 - 33.5) = 0.446 J / g 0 C

6 0

2 years ago

Which statement describes the most likely result of a field being cleared to build homes?

Anna35 [415]

Answer:

Biodiversity will decrease.

Explanation:

The likely result of clearing the fields for building homes is that biodiversity will decrease.

Biodiversity is the variation in life forms within a particular area.

The balance of the ecosystem is easily tripped by the influence of human activities.
Some habitats are easily destroyed when new fields are cleared.
Habitat loss is huge problem, in the ecosystem as a result of human activities.

6 0

3 years ago