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Taya2010 [7]
3 years ago
7

PLS HELP ME FOR BOTH QUESTIONS

Chemistry
1 answer:
Jet001 [13]3 years ago
7 0

Answer:

IF the match is stuck on the side it could chach burning hot.

2) the burn peices looks like its burned and it becomes black since of it.

Explanation:

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If I react 6 units of AB with 10 units of CD in the equation below, what is the limiting reactant? 3AB + 4CD --> 2AD + 6CB
irga5000 [103]

If 6 units of AB were reacted with 10 units of CD in the described equation, the limiting reactant would AB

<h3>Limiting reactants</h3>

They are reactants that determine how far a reaction can go in terms of yield.

From the equation: 3AB + 4CD --> 2AD + 6CB

The mole ratio of AB to CD is 3:4

Thus, 6 units of AB will require 8 units of CD.

But 10 units of CD were reacted with only 6 units of AB. This means that CD is in excess by 2 units while AB will limit the yield of the reaction.

More on limiting reactants can be found here: brainly.com/question/14225536

8 0
2 years ago
Semimetals is a term which refers to
SCORPION-xisa [38]
I guess you could call them that. In chemistry, we call them Metalloids though.
5 0
3 years ago
Aspirin that has been stored for a long time may give a vinegar like odour and give a purple colour with FeCl3. What reaction wo
iVinArrow [24]

Answer:

See explanation

Explanation:

The IUPAC name of aspirin is 2-Acetoxybenzoic acid. It is composed of an acetoxy moiety and a benzoic acid moiety.

The compound can be hydrolysed under prolonged storage conditions to yield acetic acid which causes the vinegar like odour.

Also, one of the products of this hydrolysis bears a phenol group which reacts with FeCl3 to give a purple color.

3 0
3 years ago
How to find valence electrons?
atroni [7]
Find a periodic table of elements.<span> This is a color-coded table made up of many different squares that lists all of the chemical elements known to humankind. The periodic table reveals lots of information about the elements — we'll use some of this information to determine the number of valence electrons in the atom we're investigating. You can usually find these inside the cover of chemistry textbooks. There is also an excellent interactive table available online </span>here<span>.</span>
7 0
4 years ago
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A compound contains 75% carbon and 25% hydrogen by mass. What is the empirical formula for this compound?
timama [110]
The empirical formula would be CH4.


“To get the empirical formula of the compound, we convert each mass percentage to mole percentage by dividing each to corresponding molar mass. 75% mass of carbon is 6.25 while 25% hydrogen is 25. We divide 25 by 6.25, we get 4. Hence, the empirical formula is CH4.”
6 0
4 years ago
Read 2 more answers
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