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2 years ago

10

Which statement explains why water is classified

2 answers:

strojnjashka [21]2 years ago

6 0

I believe the correct answer from the choices listed above is option 1. Water is classified as a compound because it can <span>be broken down by chemical means. This process is called electrolysis where the products are H2 and O2. Hope this answers the question. Have a nice day.</span>

hichkok12 [17]2 years ago

5 0

Answer: Option (1) is the correct answer.

Explanation:

Compounds are the substances which contain two or more different elements.

Similarly, water is a compound as it is made up when two hydrogen atoms combine with one oxygen atom. Compounds can be broken down with the help of chemical reactions.

Hence, the statement water can be broken down by chemical means explains why water is classified as a compound.

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Which of the following options correctly ranks solid iodine, liquid bromine, and chlorine gas in order of increasing intermolecu

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3 years ago

Convert 4.0 cm to mm.

BabaBlast [244]

Answer: 40mm

Explanation:

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2 years ago

A box experiences a force of 2 N to the left and 3 N to the right. Which is true of the box's motion?

Allushta [10]

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2 years ago

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6 NaOH + 2 Al ???? 2 Na3AlO3 + 3 H2 How much aluminum is required to produce 17.5 grams of hydrogen? How many moles of NaOH are

ANTONII [103]

Answer:

a) 157.5 grams of aluminum.

b) 1 mol

c) 9 g

Explanation:

The reaction is :

$6 NaOH + 2Al ---> 2 Na_{3}AlO_{3} + 3H_{2}$

As per balanced equation

a) 3 moles of hydrogen will be produced from two moles of aluminium.

The atomic mass of aluminium = 27

therefore

3X2 grams of hydrogen is produced from 2 X 27 grams of Al

1 gram of hydrogen will be produced from $\frac{2X27}{3X2}= 9$ g

therefore 17.5 will be produced from = 9X 17.5 = 157.5 grams of aluminum.

b) as per balanced equation three moles or six gram of hydrogen is produced from 6 moles of NaOH.

Therefore 1 g of hydrogen will be produced from = $\frac{6}{6}$

or 1 gram will be prepared from = 1 mole

c) from balanced equation three moles are produced from two moles of Al (27X2 = 54 g).

thus from 54 grams gives 6 grams of hydrogen

1 grams will give = $\frac{54X1}{6}= 9 g$

7 0

2 years ago

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How many atoms are present in 20.9 g of titanium

ZanzabumX [31]

Answer:

atoms Ti = 2.193 E23 atoms

Explanation:

1 mol ≡ 6.022 E23 atoms
mm Ti = 47.867 g/mol

⇒ atoms Ti = (20.9 g Ti)×(mol/47.867 g)×(6.022 E23 atoms/mol)

⇒ atoms Ti = 2.193 E23 atoms

5 0

3 years ago