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3 years ago

Please help!!! Is it balanced or unbalanced?

Chemistry

1 answer:

Black_prince [1.1K]3 years ago

6 0

Hey there!

I believe the answer you are looking for is Unbalanced!

If I am incorrect I am very sorry and would love any feedback.

Have a nice day, and Happy Halloween!

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Which of the following measurements is equal to 2,300 dL

kolbaska11 [484]

230,000. and that weird u
hope this helps

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3 years ago

The teacher shows students a pictorial model of an atom. Which element is

frutty [35]

Answer:

C. Fluorine because the model has 9 protons which is represented by the atomic number

Explanation:

We usually identify an element by the number of protons in them. The number of protons is the atomic number of an atom.

Every atom has a specific number of protons in them.
This number of protons is the atomic number.
According to the periodic law, atoms are arranged on the periodic table based on their atomic number.
The given fluorine atom has 9 protons which represents the atomic number of the atom.
This way, the given number clearly shows the right model for identifying the chemical specie.

4 0

2 years ago

An atom that undergoes radioactive decay and has a large nucleus most likely contains..

mojhsa [17]

An atom that undergoes radioactive decay and has a large nucleus most likely contains....<span>- More protons than electrons.</span>

5 0

2 years ago

In a galvanic cell,a oxidation occurs at the (name of electrode)b.the cathode is the (sign) electrodec.cations flow in solution

Tatiana [17]

Answer: a) anode

b) positive

c) cathode

d) anode to cathode

Explanation:

Galvanic cell is defined as a device which is used for the conversion of the chemical energy produces in a redox reaction into the electrical energy.

In the galvanic cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode. Thus the electrons are produced at anode and travel towards cathode.

Due to loss of electrons at anode, positive charge in concentrated in anode and negative charge is concentrated in cathode. To balance these charges , positive ions or cations from salt bridge move towards cathode and negative ions or anions from salt bridge move towards anode.

The balanced two-half reactions will be:

Oxidation half reaction : $M(s)\rightarrow M^{n+}(aq)+ne^-$

Reduction half reaction : $X^{n+}(aq)+ne^-\rightarrow X(s)$

Thus the overall reaction will be,

$M(s)+X^{n+}(aq)\rightarrow M^{n+}(aq)+X(s)$

7 0

3 years ago

if the density of a certain spherical atomic nucleus is 1.0x10^14 g cm^-3 and its mass is 2.0x10^-23 g, what is it radius in cm?

bagirrra123 [75]

Density as you should know is equal to mass/volume. Solve for the volume.

Now, you know that you are dealing with a sphere. You know the volume of a sphere is V= 4/3pi r ^3.

You know the volume so just solve for r

6 0

3 years ago

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