All categories

3 years ago

Which chemical equation correctly shows the formation of water from hydrogen

Physics

2 answers:

nekit [7.7K]3 years ago

6 0

Answer:

d. H + O2 ------ H2O

that's the formation of water

IRISSAK [1]3 years ago

6 0

The correct answer is B.. then you will balance it.. after the balancing LHS hydrogen is 4, Oxygen is 2 then RHS hydrogen is 4 and Oxygen is 2.. it’s balanced . And the reactants and products are correct

You might be interested in

Read the following statements. Which statement provides the correct definition of weather? Select your answer from the options b

babymother [125]

Answer:

In one day, a store sells 14 pairs of jeans. The 14 jeans represent 20% of the total number of items sold that day. How many items did the store sell in one day? Explain or show how you got your answer.

plz help with the qsn

Explanation:

6 0

3 years ago

A restaurant records the number of tables served each night, and the results have the values: minimum = 3, lower quartile = 14,

dybincka [34]

To choose the correct box plot, verify each of the options and make sure all the values in the plot match the values provided.

<h3>How to identify the median?</h3>

In a box plot, this value is represented by a vertical line located in the middle of the graph.

<h3>How to identify the maximum and the minimum?</h3>

The maximum is the value located on the farthest right, while the minimum is located on the farthest left.

<h3>How to identify the quartiles?</h3>

Divide the graph into 4 and analyze how much each quartile represents.

Learn more about graphs in: brainly.com/question/16608196

#SPJ1

5 0

2 years ago

In a television set the power needed to operate the picture tube comes from the secondary of a transformer. The primary of the t

Natasha2012 [34]

Answer:

c) N_s / N_p = 115.15

Explanation:

Let's look for the voltage in the secondary, they do not indicate the power dissipated

P = V_s i

V_s = P / i

V_s = 76 / 5.5 10⁻³

V_s = 13.818 10³ V

the relationship between the primary and secondary of a transformer is

$\frac{V_p}{N_p} = \frac{V_s}{N_s}$

$\frac{N_s}{N_p} = \frac{V_s}{V_p}$

Ns / Np = 13,818 10³ /120

N_s / N_p = 115.15

4 0

3 years ago

A corrosion cell consisting of Zinc and Nickel is formed. Which of the following statement is true? (A) Nickel will act as Anode

Yanka [14]

Answer: B) Zinc will act as Anode

Explanation:

Standard reduction potential of zinc and nickel are:

$E^0_{[Zn^{2+}/Zn]}= -0.76V$

$E^0_{[Ni^{2+}/Ni]}=-0.25V$

Here Zinc undergoes oxidation by loss of electrons, thus act as anode as it has more negative reduction potential.

Nickel undergoes reduction by gain of electrons and thus act as cathode. as it has less negative reduction potential.

$Zn+Ni^{2+}\rightarrow Zn^{2+}+Ni$

$E^0_{cell}=E^0_{cathode}- E^0_{anode}$

Where both $E^0$ are standard reduction potentials.

$E^0=E^0_{[Ni^{2+}/Ni]}- E^0_{[Zn^{2+}/Zn]}$

$E^0=0.25-(-0.76V)=0.51V$

As the emf is positive, the reaction is spontaneous and reaction will occur.

Thus Zinc will act as anode.

4 0

4 years ago

How can a force change the motion of an object that is already moving?

lara [203]

Answer:They may cause motion to change

Explanation:They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.

7 0

3 years ago