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3 years ago

The equation K + NaOH => Na + KOH should it react, true or false?

Chemistry

1 answer:

Andru [333]3 years ago

3 0

Answer:

yes it should react yoyoyoyoyo

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If 1.320 moles of CH4 reacts completely with oxygen, how many grams of H2O can be formed

laiz [17]

Answer:

47.5 g of water can be formed

Explanation:

This is the reaction:

CH₄ + 2O₂ → CO₂ + 2H₂O

Methane combustion.

In this process 1 mol of methane react with 2 moles of oxygen to produce 2 moles of water and 1 mol of carbon dioxide.

As ratio is 1:2, I will produce the double of moles of water, with the moles of methane I have.

1.320 mol .2 = 2.64 moles

Now, we can convert the moles to mass (mol . molar mass)

2.64 mol . 18g/mol = 47.5 g

7 0

3 years ago

Read 2 more answers

how many water (h2o) molecules are in a block of ice that has a mass of 59.5 g? how many atoms of hydrogen are present in this b

schepotkina [342]

Block of ice of mass 59.5g contains 19.87 ×10²³molecules and 39.75×10²³ atoms.

Molecular mass of Water is 18g/mol

No. of moles = Given mass /Molecular mass

No. of moles of water = 59.5/18 (Given, mass of block of ice is 59.5g)

= 3.3moles.

1mol of water contains 6.023×10²³ molecules of water.

Then,3.3 moles of water contains ,

3.3× 6.023×10²³= 19.87 ×10²³molecules.

1mol of water (H₂O) contains,2× 6.023×10²³ atoms of hydrogen

Then, 3.3 moles of water contains,

2×3.3× 6.023×10²³ = 39.75×10²³ atoms of hydrogen.

Thus, the molecules and atoms present in the block of ice of mass 59.5g is 19.87 ×10²³molecules and 39.75×10²³ atoms respectively.

To learn more about moles, refer this link

brainly.com/question/13314627

#SPJ4

4 0

2 years ago

Write the mole ratios of (2ca+o2➡2cao)

tresset_1 [31]

N(Ca)/2 = n(O)/1 = n(CaO)/2

The calcium and the Calcium Oxide are divided by 2 because of their coefficients
there is no number in front of the oxygen so it is over one.
Hope this helped!!

6 0

3 years ago

Read 2 more answers

How many moles of oxygen gas molecules would you need to make 12.5 moles of water

horrorfan [7]

Answer: 6.25 mol

Explanation:

From the reaction that produces water from its elements (shown in the image), we know that for every mole of oxygen gas consumed, 2 moles of water are produced.

This means that 12.5/2=<u>6.25 mol</u> of oxygen gas is needed.

7 0

2 years ago

Acidic soil with a surface of decayed pine needles describes the

Sedbober [7]

Allelopathy, the pine needles make the ground more acidic so weeds cannot grow and steal nutrients the tree needs

7 0

3 years ago