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murzikaleks [220]
3 years ago
13

How is burning methane similar to burning magnesium?

Chemistry
2 answers:
KiRa [710]3 years ago
8 0
There are both chemical reactions that are involving oxygen. in reactions, they are both forming oxygen in reactions
zvonat [6]3 years ago
3 0
I think it is that they use the same process which is oxidation 
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A man weighs 185 lb. What is his mass in grams?<br> Please show work.<br> Thank you
Vera_Pavlovna [14]

Answer:

83914.52 grams

Explanation:

Given that,

Weight of a man is 185 lb

We need to find his weight in grams

For this, we must know the relation between lb and grams.

We know that,

1 lb = 453.592 grams

To find the mass of man in grams, the step is :

185 lb = (453.592 × 185) grams

= 83914.52 grams

So, the mass of a man is 83914.52 grams.

8 0
4 years ago
Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction
inessss [21]

Answer:

Explanation:

2 NH4I    + Pb(NO3)2   =  PbI2  + 2 NH4NO3

2 mol          1 mol

x ml             751 ml

0.550 M      0.380 M

0.380 mol/1000 ml  x 751 ml =  0.285 mol Pb(NO3)2

0.285 mol Pb(NO3)2 x 2 mol NH4I/1 mol  Pb(NO3)2=0.571 mol  NH4I  needed

0.571 mol  NH4I/0.550 mol/1000 ml=1038 ml

6 0
3 years ago
What is the answer?
Naily [24]

Answer:

Option A

Explanation:

The atomic number is the number of protons in the nucleus of an atom.

3 0
3 years ago
Draw the structures of all monofluoro derivatives of methylcyclopentane, c6h11f, which have the fluorine on a primary carbon.
STatiana [176]

Answer: There are 4 monofluoro derivatives of methylcyclopentane. Only 1 derivative has flourine atom attached to a primary carbon.

Explanation: The compound methylcyclopentane has 1-primary carbon, 4- secondary carbons and 1-tertiary carbon.

1) Primary carbon (1°): In this the carbon atom is attached directly to only one carbon atom.

2) Secondary carbon (2°): In this the carbon is attached directly to two carbon atoms.

3) Tertiary Carbon (3°): In this the carbon is attached directly to three carbon atoms.

The monofluoro derivatives are shown in the image below.

Structure B is the only derivative which has fluorine attached to primary carbon atom.

3 0
3 years ago
How much heat is released when 47.50 g of CH4 (g) is burned in excess oxygen gas to produce carbon dioxide and water?
Elina [12.6K]

Answer:

= 2113.44 kJ

Explanation:

When 1 mole of CH4 (g) burns in excess oxygen -714.0 kJ of heat is released.

For 47.50 g;

molar mass of CH4 = 16.042 g/mol

Number of moles of CH4

   = 47.5 g /16.042 g/mol

   = 2.96 moles

Therefore;

1 mole = -714.0 kJ

Heat change for 2.96 moles

 = 2.96 moles × -714.0 kJ

 = 2113.44 kJ

8 0
3 years ago
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