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Lelu [443]
3 years ago
8

Which of the following is a necessary product of a combustion reaction?

Chemistry
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

Heat

Explanation:

explosions always make heat

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PLS HELPPP I NEED ANSWERS QUICK !! WILL GIVE U BRAINLIEST
Brums [2.3K]

Answer:

The motion of the atoms should vary depending on the state.

6 0
3 years ago
Oxidation unit test
3241004551 [841]

In this case, according to the given information about the oxidation numbers anf the compounds given, it turns out possible to figure out the oxidation number of manganese in both MnI2, manganese (II) iodide and MnO2, manganese (IV) oxide, by using the concept of charge balance.

Thus, we can define the oxidation state of iodine and oxygen as -1 and -2, respectively, since the former needs one electron to complete the octet and the latter, two of them.

Next, we can write the following x, since manganese has five oxidation states, and it is necessary to calculate the appropriate ones:

Mn^xI_2^-\\\\Mn ^xO_2^{-2}

Next, we multiply each anion's oxidation number by the subscript, to obtain the following:

Mn^xI_2^-\rightarrow x-2=0;x=+2\\\\Mn ^xO_2^{-2}\rightarrow x-4=0;x=+4

Thus, the correct choice is Manganese has an oxidation number of +2 in Mnl2 and +4 in MnO2.

Learn more:

  • brainly.com/question/15167411
  • brainly.com/question/6710925
8 0
2 years ago
an oxygen tank used for scuba diving has. avolume of 12.0 L .If the pressure of the tank is known to be 204.047 atm and the temp
Lapatulllka [165]

Answer: 101 moles of oxygen are contained in the tank

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = 204.047  atm

V = Volume of gas = 12.0 L

n = number of moles  = ?

R = gas constant =0.0821Latm/Kmol

T =temperature =22.0^0C=(22.0+273)K=295K

n=\frac{PV}{RT}

n=\frac{204.047atm\times 12.0L}{0.0821 L atm/K mol\times 295K}=101moles

Thus 101 moles of oxygen are contained in the tank

5 0
3 years ago
Convert 0.76 kg to grams.<br> plz help, thank you
katen-ka-za [31]

Answer:

the second answer

Explanation:

just multiple 10²=10×10=100×7.6=760g

8 0
2 years ago
A chef is serving a lunch special with 1 sandwich and 2 corn cobs per plate. If there are 5 sandwiches and 14 corn cobs, what is
shtirl [24]
5 plates is the highest amount that can be served

There’s only 5 sandwiches so 7 is automatically ruled out, there’s 14 corn cobs and 5 sandwiches only need 10 so it works out
7 0
3 years ago
Read 2 more answers
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