Answer: 5491.72
Explanation:
The symbol equation for combustion of a hydrocarbon is shown below. What number will go before the oxygen reactant when
this equation is balanced?
Answer:
Yes it is indeed
Explanation:
Thanks if you found this helpful
The balanced chemical equation is [tex]\rm C_3H_8 + 5O_2- \rightarrow 3CO_2 + 4H_2O[/tex].
What is chemical equation?Chemical equation is defined as a formulation of mathematics that captures the chemical reaction. We can learn about the reactants and products involved in a chemical reaction by developing a chemical equation. It includes the symbols for the atoms of each element found in the compound, together with a count of how many of each element there are overall in the form of subscripts.
Chemical equations must be balanced in order to satisfy the law of conservation of mass, which states that "the total mass of all products of reaction in a chemical reaction is equal to the total mass of all reactants." A chemical equation is said to be balanced when the number of various elemental atoms on the reactants and products sides are equal. Chemical equations must be balanced by a process of trial and error.
Thus, the balanced chemical equation is [tex]\rm C_3H_8 + 5O_2- \rightarrow 3CO_2 + 4H_2O[/tex].
To learn more about chemical equation, refer to the link below:
https://brainly.com/question/28294176
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A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade
Answer:
Volume occupied by oxygen gas at 15 degree centigrade is equal to [tex]316.5[/tex] centimeter cube
Explanation:
Assuming Pressure is constant.
[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2}[/tex]
where T1 and T2 are temperature in Kelvin
Substituting the give values we get-
[tex]\frac{300}{273} = \frac{V_2}{288}[/tex]
[tex]V_2 = \frac{288*300}{273} \\V_2 = 316.5[/tex]
Volume occupied by oxygen gas at 15 degree centigrade is equal to [tex]316.5[/tex] centimeter cube
Plz help answer this question
Answer:
A compound
B mixture
And C Element
Explanation:
49. Identify the noble gas that has atoms in the ground state with the same electron configuration as the nitrogen in a molecule of isocyanic acid
Answer:
Neon (Ne)
Explanation:
Nitrogen in it's neutral state has valency of 5 and it's electronic configuration is given as;
1s2 2s2 2p3
However in isocyanic acid, it forms a covalent bond with hydrogen and carbon. Due to this bond, it is able to achieve stable octet configuration. The configuration is given as;
1s2 2s2 2p6
This is the same electronic configuration as Neon
How much heat is released when 24.8 g of ch4 is burned in excess oxygen gas?
The given question is incomplete. The complete question is:
How much heat is produced when 24.8 g of [tex]CH_4[/tex] is burned in excess oxygen gas
Given: [tex]CH _4 +2O_2\rightarrow CO_2+2H_2O[/tex] ΔH= −802 kJ.
Answer: 1243.1 kJ
Explanation:
Heat of combustion is the amount of heat released on complete combustion of 1 mole of substance.
Given :
Amount of heat released on combustion of 1 mole of methane = 802 kJ kJ/mol
According to avogadro's law, 1 mole of every substance occupies 22.4 L at NTP, weighs equal to the molecular mass and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
1 mole of [tex]CH_4[/tex] weighs = 16 g
Thus we can say:
16 g of [tex]CH_4[/tex] on combustion releases heat = 802 kJ
Thus 24.8 g of [tex]CH_4[/tex] on combustion releases =[tex]\frac{802}{16}\times 24.8=1243.1kJ[/tex]
Thus heat released when 24.8 g of methane is burned in excess oxygen gas is 1243.1 kJ
11. Acids are described as being because they dissolve some metals.
Answer:
Corosive
Explanation:
CORRECT
Answer:
Corosive
Explanation:
Hope this will help
The state of matter with the highest kinetic
energy is
A. solid
B. liquid
C. gas
a primary substance that cannot be divided into separate substances; one of about 112 different basic varieties of matter making up the universe
Answer:
No you can not divide a primary substance into a seperat one because ot wpuld be like divideing the universe
what is the correlation between the number of mole of ions in the solution and the freezing point
Answer:
13.9
Explanation:
this is actually science and I will give brainliest but u have to show your work
Answer:
I think it's 3.01 meters per second
To find the speed, you divide distance by time. So, you do 100 divided by 33.2, which equals 3.01 I think. I hope this helped.
What do you use to determine molar mass?
Answer:
the molar mass of any element can be determined by finding the atomic mass of the element on the periodic table for example, if the atomic mass of sulfer is 32.066 amu, then it's molar mass is 32.066 g / mol