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
galben [10]
3 years ago
12

What do 4 hydrogen and 2 oxygen atoms chemically react to

Chemistry
1 answer:
seropon [69]3 years ago
6 0

Answer:

2 molecules of water

Explanation:

In chemical reactions, molecules and compounds chemically combine to give products. This involves atoms combining by re-establishing bonding relationships.

  4 hydrogen atoms is equivalent to 2 molecules of Hydrogen gas = H₂

   2 oxygen atoms is the same as 1 oxygen molecule  = O₂

This 2 molecules of hydrogen gas and 1 molecule of O₂ gas will combine to form 2 molecules of water chemically;

                        2H₂   + O₂    →  2H₂O

You might be interested in
What are the different phases of matter and their characteristics?
Novay_Z [31]

Answer:

The five phases of matter. There are four natural states of matter: Solids, liquids, gases and plasma. The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together so they don't move much.

3 0
3 years ago
Read 2 more answers
What are two ways in which you can increase the potential energy of a marble on ramp
zlopas [31]

Answer:

You can make the ramp really steep and hold the marble at the top of it

Explanation:

6 0
3 years ago
The activation energy of a certain uncatalyzed biochemical reaction is 50.0 kJ/mol. In the presence of a catalyst at 37°C, the r
rodikova [14]

Answer:

E₁ ≅ 28.96 kJ/mol

Explanation:

Given that:

The activation energy of a certain uncatalyzed biochemical reaction is 50.0 kJ/mol,

Let the activation energy for a catalyzed biochemical reaction = E₁

E₁ = ??? (unknown)

Let the activation energy for an uncatalyzed biochemical reaction = E₂

E₂ = 50.0 kJ/mol

    = 50,000 J/mol

Temperature (T) = 37°C

= (37+273.15)K

= 310.15K

Rate constant (R) = 8.314 J/mol/k

Also, let the constant rate for the catalyzed biochemical reaction = K₁

let the constant rate for the uncatalyzed biochemical reaction = K₂

If the  rate constant for the reaction increases by a factor of 3.50 × 10³ as compared with the uncatalyzed reaction, That implies that:

K₁ = 3.50 × 10³

K₂ = 1

Now, to calculate the activation energy for the catalyzed reaction going by the following above parameter;

we can use the formula for Arrhenius equation;

K=Ae^{\frac{-E}{RT}}

If K_1=Ae^{\frac{-E_1}{RT}} -------equation 1     &

K_2=Ae^{\frac{-E_2}{RT}} -------equation 2

\frac{K_1}{K_2} = e^{\frac{-E_1-E_2}{RT}

E_1= E_2-RT*In(\frac{K_1}{K_2})

E_1= 50,000-8.314*310.15*In(\frac{3.50*10^3}{1})

E_1 = 28957.39292  J/mol

E₁ ≅ 28.96 kJ/mol

∴ the activation energy for a catalyzed biochemical reaction (E₁) = 28.96 kJ/mol

8 0
3 years ago
What is the pH of a 4.7 x 10-9 M HCl solution? *
ValentinkaMS [17]
11.21 or 2.93 I think
4 0
3 years ago
The smell of fresh cut pine is due in part to the cyclic alkene called pinene. Given the following data of pinene: Vapor pressur
Sveta_85 [38]

Answer: Heat of vaporization is 41094 Joules

Explanation:

The vapor pressure is determined by Clausius Clapeyron equation:

ln(\frac{P_2}{P_1})=\frac{\Delta H_{vap}}{R}(\frac{1}{T_1}-\frac{1}{T_2})

where,

P_1= initial pressure at  429 K = 760 torr

P_2 = final pressure at 415 K  = 515 torr

= enthalpy of vaporisation = ?

R = gas constant = 8.314 J/mole.K

T_1= initial temperature =  429 K

T_2 = final temperature = 515 K

Now put all the given values in this formula, we get

\log (\frac{515}{760}=\frac{\Delta H}{2.303\times 8.314J/mole.K}[\frac{1}{429K}-\frac{1}{415K}]

\Delta H=41094J

Thus the heat of vaporization is 41094 Joules

4 0
3 years ago
Other questions:
  • Which statements describe phase changes? Check all that apply. Particles in a liquid need to move more slowly in order to freeze
    12·2 answers
  • How many moles in 6.92 L of SO2 gas at STP?
    8·1 answer
  • What is one way to test whether an unknown solution is acidic or basic
    12·1 answer
  • What do lactate dehydrogenase, aspartate aminotransfcrase, and creatine kinase all have in common? a. they all are allosteric en
    9·1 answer
  • Most of the chemical reactions inside your body rely on protein catalysts called enzymes to take place. For example, the enzyme
    5·1 answer
  • A reaction begins with 1.00 mol of HCl in a 4.00 liter container at a certain temperature.
    7·1 answer
  • A student went to the dentist and found out that he had a cavity. He always brushes his teeth twice a day, so he didn't understa
    5·1 answer
  • When an apple is cut, it often turns brown. What does the color change indicate?
    7·1 answer
  • Which of the following elements does not form hydride by direct heating with
    5·2 answers
  • Which TWO trends do the data show TWO answers Giving Brainliest Explain your answer:)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!