Answer:
anthracite
Explanation:
simple
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-.
Answer:
Charles's law states that V1 / T1 = V2 / T2. However, you must make sure that T is in Kelvin, not C.
1.19E6 / (11 + 273) = V2 / (113 + 273)
V2 = 1.62E6
Explanation:
Gases expand when heated if the container they are in is flexible. When the gas is heated its molecules move faster and faster. The collisions of the gas particles with the flexible container wall expand.
The solid powder contained hydrogen ions.
The pH indicator was used incorrectly.
The powder increased the hydrogen ion concentration of the solution.
Answer:
The powder increased the hydrogen ion concentration in the water
Explanation:
The ion that is responsible for acidity is the hydrogen ion. This is why all acids have the hydrogen ion in them. Examples are HCl, HBr, HNO3, H2SO4. So a solution with a higher concentrations of hydrogen ions in solution will be more acidic than one with less hydrogen ions in solution, So clearly in this case, the reason this powder would change the pH of water from 7 to 2.7 would be because there has been an increase in acidity of the solution or an increase in the concentration of hydrogen ions
Answer:
The empirical formula of P4O10 is P2O5 . This is arrived at by dividing both subscripts by their highest common factor 2.
Explanation:
Empirical Formula of a compound is the lowest whole number ratio between the compound elements it is sometimes different from the standard formula of the compound).
The molecular formula is the formula derived from molecules and is representative of the total number of individual atoms present in a molecule of a compound.The empirical formula of the compound whose molecular formula is P₄O₁₀ is P₂O₅.
The empirical formula of a compound provides the simplest ratio of the number of various atoms present. It is an empirical formula if it has been simplified. The molecular formula is commonly used and is a multiple of the empirical formula.
Molecular Formula = n × Empirical Formula
On dividing both the subscripts of the formula P₄O₁₀ by 2 we get the empirical formula as P₂O₅.
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