1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Wewaii [24]
3 years ago
10

Write a balanced chemical equation depicting the formation of one mole of H2O2(g) from its elements in their standard states.

Chemistry
1 answer:
I am Lyosha [343]3 years ago
7 0

Answer:

H_2(g)+O_2(g)\rightarrow H_2O_2(g)

Explanation:

Hello!

In this case, since the formation reaction of a compound is undergone when the pure elements composing it are combined, for gaseous hydrogen peroxide, gaseous diatomic hydrogen and oxygen (standard state) must be combined in order to obtain the gaseous hydrogen peroxide as shown below:

H_2(g)+O_2(g)\rightarrow H_2O_2(g)

Whereas it is proved there are two hydrogen and oxygen atoms at each side of the chemical equation and therefore it is balanced.

Best regards!

You might be interested in
A chemical reaction is shown below:
BabaBlast [244]

Answer:

Mass = 8.46 g

Explanation:

Given data:

Mass of water produced = ?

Mass of glucose = 20 g

Mass of oxygen = 15 g

Solution:

Chemical equation:

C₆H₁₂O₆ + 6O₂     →   6H₂O + 6CO₂

Number of moles of glucose:

Number of moles = mass/molar mass

Number of moles = 20 g/ 180.16 g/mol

Number of moles = 0.11 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 15 g/ 32 g/mol

Number of moles = 0.47 mol

now we will compare the moles of water with oxygen and glucose.

               C₆H₁₂O₆           :            H₂O

                   1                   :              6

                 0.11                :           6/1×0.11 = 0.66

                   O₂               :            H₂O

                   6                   :              6

                 0.47                :           0.47

Less number of moles of water are produced by oxygen thus it will limit the yield of water and act as limiting reactant.

Mass of water produced:

Mass = number of moles × molar mass

Mass = 0.47 mol  ×18 g/mol

Mass = 8.46 g

8 0
3 years ago
Which of the following would not be considered an observation in terms of the scientific method?
prohojiy [21]

Answer:

the first option, tasting a pasta sauce after adding a new ingredient.

Explanation:

tasting a pasta sauce after adding a new ingredient is not an observation because there is no qualitative or quantitative data to be taken from that experience.

4 0
3 years ago
Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 162. kJ during a certain chemical reaction, w
puteri [66]

Answer:

= -356KJ

<em>therefore, the reaction where heat is released is exothermic reaction since theΔH is negative</em>

Explanation:

given that enthalpy of gaseous reactants decreases by 162KJ and workdone is -194KJ

then,

change in enthalpy (ΔH) = -162( released energy)

work(w) = -194KJ

change in enthalpy is said to be negative if the heat is evolved during the reaction while heat change(ΔH) is said to be positive if the heat required for the reaction occurs.

At constant pressure the change in enthalpy is given as

ΔH = ΔU + PΔV

ΔU = change in energy

ΔV = change in volume

P = pressure

w =  -pΔV

therefore,

ΔH = ΔU -W

to evaluate  energy change we have,

ΔU =ΔH + W

ΔU = -162+ (-194KJ)

= -356KJ

<em>therefore, the reaction where heat is released is exothermic reaction since theΔH is negative</em>

6 0
3 years ago
TRUE or FALSE
andriy [413]

Answer:

1. true

2. false

3. true

Explanation:

5 0
2 years ago
Two chlorides on the carbon of a methane unit are called: (choose one)
ryzh [129]
Methyl chloride
dichloromethane
4 0
3 years ago
Read 2 more answers
Other questions:
  • What describes the solvent in any solution
    14·2 answers
  • In the reaction of nitrogen gas with oxygen gas to produce nitrogen oxide, what is the effect of adding more oxygen gas to the i
    15·1 answer
  • How many gold atoms are in an 0.333 ounce, 18 k gold bracelet? (18 k gold is 75% gold by mass.)?
    14·1 answer
  • A 0.3832-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.7120 g of CO2
    13·1 answer
  • For the gas phase decomposition of 1-bromopropane, CH3CH2CH2BrCH3CH=CH2 + HBr the rate constant at 622 K is 6.43×10-4 /s and the
    7·1 answer
  • Which of the following types of electromagnetic radiation have higher frequencies than visible light and which have shorter freq
    14·1 answer
  • Please help, due tomorrow! ツ
    8·1 answer
  • Why does this experiment need a water pump?
    13·1 answer
  • The equation below shows the decomposition of lead nitrate. How many molecules of PbO are produced when 11.5 g NO2 is formed?
    8·1 answer
  • Write the skeleton equation for the reaction between hydrochloric acid (HCl) and zinc. The products are hydrogen gas and zinc ch
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!