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allsm [11]
2 years ago
10

How many oxygen molecules make up ozone

Chemistry
1 answer:
oksano4ka [1.4K]2 years ago
5 0
Ozone is made up of three oxygen atoms.

I hope this helped!
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Cereal is an example of what type of matter?
Delvig [45]
Cereal is a heterogeneous mixture because it is composed of many different types of ingredients.
5 0
3 years ago
A mixture of 10 cm3 of methane and 10 cm3 of ethane was sparked with an excess of oxygen. After cooling to room temperature, thr
Tpy6a [65]
In the combustion process using excess oxygen, each mole of methane results to 1 mole of co2 while ethane produces 2 moles of Co2. Under same conditions, these can be translated to volume. Hence the total volume absorbed is 10 cm3 + 20 cm3 = 30 cm3.
5 0
3 years ago
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 9.50 MJ 9
tensa zangetsu [6.8K]

Answer:

709415.584 g

Explanation:

This is a heat capacity  problem. We use the formula below to calculate.

Q=mcΔT

where Q is the quantity of heat

           m is the mass of substance

           ΔT is the change in temperature of substance( T2-T1).

Q= 9.5MJ = 9.5*10^(6}J

C.P = 30.8J/(K.mol)

temperature of sodium increases by 10°C which means our final temperature in kelvin T2 will be 510K

initial temperature T1= 500K

m= Q/[c (T2-T1)]

m= 9.5*10^(6}/ {30.8(510-500)]

m= 30844.156 mol of Na

Converting to grams we multiply by the molar mass of Na.

molar mass of Na = 23

mass of Na=   30844.156 *23

                  =709415.584 g

7 0
3 years ago
How many liters of h2 would be formed at 684 mm hg and 13 ∘c if 21.0 g of zinc was allowed to react?
Black_prince [1.1K]
Answer is <span>8.422 L. 
The solving method as the attached pdf.</span>
Download pdf
8 0
4 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
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