What are 3 things an Apple, Knife and Mirror have in common?
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2)They all have mass.
3)They are all solids.
Because of 1 and 2, they are all matter.
Related Questions
What is true about the metals in group 1A, 2A, 3A?a)all form ions with negative charges b)all have ions with a 1+ charge c)gain electrons when they form ions d)lose electrons when they form ions
1. The speed limit on most city streets is (25 miles). How many meters per minutehouris this?This is a conversion.
Iron in the form of fine wire burns in oxygen to form iron (III) oxide. Write the balanced chemical equation.
Which statement best describes the liquid state of matter?
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There are 2 compounds in CO2
2Na + 2H2O 2NaOH + H2
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Answer: YES
Explanation: The given chemical equation can be balanced by balancing the stiochiometric number of each and every element.
This rule is in accordance with the Law of Conservation of Masses which states that the masses of the elements in any chemical equation are constant at any instant of time.
Thus the given equation can be written as
equation balanced:
2 Na + 2 H₂O = 2 NaOH + H₂ ( single replacement )
hope this helps!
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The statement that is given from above “Water pollution that washes into storm sewers from many places, such as parking lots and lawns, is known as nonpoint-source pollution” is true. This is difficult to treat as the source may come from different points.
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Answer:
1.
Explanation:
(2) electrical energy, nonspontaneously
(3) nuclear energy, spontaneously
(4) nuclear energy, nonspontaneously
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Answer:
(1) electrical energy, spontaneously
Explanation:
Voltaic cells or galvanic cells are electrochemical systems in which electrical energy is produced through spontaneous chemical reactions. Redox (reduction-oxidation reactions) processes forms the basis of voltaic cells.
Oxidation which involves loss of electrons takes place at the anode. These electrons move to the positive cathode where reduction or the gain of electrons takes place. The movement of electrons from the anode to the cathode generates electrical energy. Thus, chemical is spontaneously converted to electrical energy.
In a voltaic cell, chemical energy is converted to electrical energy, spontaneously because the redox reaction that takes place in the cell is spontaneous. So correct option is 1.
(1) electrical energy, spontaneously
A voltaic cell is made up of two half-cells, each of which contains an electrode and an electrolyte. The electrolyte is a substance that conducts electricity, and the electrode is a metal that can either gain or lose electrons.
The two half-cells are connected by a salt bridge, which is a tube filled with a solution that contains ions. The salt bridge allows the ions to move between the two half-cells, which completes the circuit and allows an electric current to flow.
The chemical reaction that takes place in the voltaic cell is a redox reaction. A redox reaction is a reaction in which electrons are transferred from one atom or molecule to another. In the voltaic cell, the electrons are transferred from the electrode in the first half-cell to the electrode in the second half-cell.
The transfer of electrons creates an electric current, which flows from the first half-cell to the second half-cell. The chemical energy of the redox reaction is converted into electrical energy, and the electric current flows until the chemical reaction is complete.
The conversion of chemical energy into electrical energy in a voltaic cell is a spontaneous process. This means that it happens without any outside intervention. The electrons in the cell move from one electrode to another because they are attracted to the oppositely charged electrode.
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