Answer:
The prefix is but-.
Explanation:
"A molecule of a compound contains a total of 10 hydrogen atoms and has the general formula CnH2n+2.Which prefix is used in the name of this compound?
A) but- B) dec- C) oct- D) pent"
Hydrocarbons are compounds that contain only carbon and hydrogen. They are divided into aliphatic and aromatic hydrocarbons.
In aliphatic hydrocarbons, carbon atoms form open chains and are classified as alkanes, alzenes or alkenes, and alcines or alkynes.
Alkanes have only simple bonds between carbon atoms. The general formula for aliphatic (straight-chain) alkanes is CₙH₂ₙ₊₂.
Alkenes are hydrocarbons that have a carbon-carbon double bond in their molecule, and that is why they are called unsaturated. The generic formula is CₙH₂ₙ.
Alkynes have a triple bond between two carbon atoms. Its general formula is CₙH₂ₙ.
So in this case, you know that it is an alkane. To name an alkane, you must know the number of carbons n. For that you know that the compound has 10 hydrogens. That is, 2n + 2 must be 10. Then you can calculate the value of n:
2*n+2=10
2*n=10 -2
2*n=8
n=8÷2
n=4
So, in this case, the prefix is but-.
b) Fe₂(SO₄)₃
c) Fe₂(SO₃)₃
d) Fe₂SO₄
e) Fe₂SO₃
Since height is a basic physical property of length, the height of a classroom ceiling is expressed in meters, or meters, or meters.
There are some physical characteristics of matter, such as length, mass, volume, weight, and so forth, that are dependent on the amount or size of the substance.
As the size or amount of the matter changes, so do these qualities of matter and their values.
A quality of matter that is unrelated to a change in its chemical makeup is called a physical property.
Density, color, hardness, melting and boiling points, and electrical conductivity are a few common examples of physical qualities.
The physical characteristics include color, phase, odor, and boiling point. Reactivity with oxygen is not a physical quality because it depends on the chemical makeup of the thing.
Therefore, meter is used to express the height of your classroom ceiling.
Learn more about length here:
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beryllium (Be) and calcium (Ca)
chlorine (Cl) and helium (He)
oxygen (O) and carbon (C)
(2) The block gains heat from the water until both are at 90.0°C.
(3) The water loses heat and the block gains heat until both are at the same temperature that is between 10.0°C and 90.0°C.
(4) The water gains heat and the block loses heat until both are at the same temperature that is between 10.0°C and 90.0°C.
Heat transfers from the water to the copper block until both reach an equilibrium temperature.
The transfer of heat in this system can be described by (4) The water gains heat and the block loses heat until both are at the same temperature that is between 10.0°C and 90.0°C.
This is because heat always flows from the object with higher temperature to the object with lower temperature. In this case, the water at 90.0°C has a higher temperature than the copper block at 10.0°C. As a result, heat will transfer from the water to the copper block, causing the water to cool down and the copper block to heat up. Eventually, both objects will reach an equilibrium temperature somewhere between 10.0°C and 90.0°C.
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