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devlian [24]
2 years ago
12

What is the balanced chemical equation for the combustion of sulphur

Chemistry
2 answers:
Papessa [141]2 years ago
8 0

Answer:

The balanced equation is S + O2 → SO2

nikitadnepr [17]2 years ago
3 0

Answer:

S+O2⇒SO2

Explanation:

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A mixture of two compounds, A and B, was separated by extraction. After the compounds were dried, their masses were found to be:
Arlecino [84]

Answer:

The percent recovery from re crystallization for both compounds A and B is 69.745 and 81.44 % respectively.

Explanation:

Mass of compound A in a mixture  = 119 mg

Mass of compound A after re-crystallization = 83 mg

Percent recovery from re-crystallization :

\frac{\text{Mass after re-crystallization}}{\text{Mass before re-crystallization}}\times 100

Percent recovery of compound A:

\frac{83 mg}{119 mg}\times 100=69.74\%

Mass of compound B in a mixture  = 97 mg

Mass of compound B after re-crystallization = 79 mg

Percent recovery of compound B:

\frac{79 mg}{97 mg}\times 100=81.44\%

3 0
3 years ago
What type of reaction is shown below? Check all that apply. Ca + 2H2O → Ca(OH)2 + H2 synthesis decomposition combustion single r
Ksju [112]

The balanced reaction is

Ca + 2H2O → Ca(OH)2 + H2

Here this reaction can be compared with

A + BC  ---> AB + C

So here one reactant (A) is accepting a group which is being given by another compound (BC) however the A is not giving any group / element or ion

So this single displacement

Similarly in the given reaction

the anion OH- is only being replaced

The element Ca accepts OH- and H2O loses the same group to form new element H2

So the correct answer is

Single replacement also known as single displacement


3 0
3 years ago
Read 2 more answers
Why do some chemical reactions occur?
zheka24 [161]

Answer:

Explanation:

Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules

7 0
3 years ago
Which of the following is not the same as 0.00684 kg? 0.0684 dkg,6.84 g, 684 cg, 6,840 mg,
lesya [120]
The Answer would be C.) 684 cg


8 0
3 years ago
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Which substances will make a salt when combined?
BartSMP [9]
Vinegar and tea for sure
3 0
3 years ago
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