Answer is: hydroxyl group (-OH).
A functional group is a group of atoms that determines many of the properties of an organic molecule.
Functional group for alcohol is hydroxyl group or hydroxy group (-OH).
In organic chemistry, alcohol and carboxylic acids contain hydroxy groups.
The atoms of functional groups are linked to each other and to the rest of the molecule with covalent bonds.
Answer :
The parent and daughter concentrations (in percentages) is, 60 % and 40 % respectively.
The age of rock is
Explanation :
First we have to calculate the parent and daughter concentrations (in percentages).
and,
As we know that, the half-life of uranium-238 = years
Now we have to calculate the rate constant, we use the formula :
Now we have to calculate the time passed.
Expression for rate law for first order kinetics is given by:
where,
k = rate constant =
t = time passed by the sample = ?
a = initial amount of the reactant = 3 g
a - x = amount left after decay process = 1.8 g
Now put all the given values in above equation, we get
Therefore, the age of rock is
Answer:
Second order
Δ[ClO⁻]/Δt = - 4.183 x 10⁻⁴ M/min
Explanation:
Given the data:
Experiment # [ClO–] (M) Initial Rate of Formation of ClO3– (M/min)
1 10.452 1.048 x 10⁻⁴
2 20.903 4.183 x 10⁻⁴
we need to determine the order of the reaction with respect to ClO⁻.
We know the rate law for this reaction will have the form:
Rate = k [ClO⁻]^n
where n is the order of the reaction. Thus, what we need to do is to study the dependence of the initial rate on n for the experiment.
If the reaction were zeroth order the rate would not change, so we can eliminate n= 0
If the reaction were first order, doubling the concentration of [ClO–] , as it was done exactly in experiment # 2, the initial rate should have doubled, which is not the case.
If the reaction were second order n: 2, doubling the concentration of [ClO–] , should quadruple the initial rate of formation of ClO3–, which is what it is observed experimentally. Therefore the reaction is second order respect to ClO–.
The initial rate of consumption of ClO⁻ is the same as the rate of formation of ClO₃⁻ since:
Δ = - Δ[ClO⁻]/Δt = + Δ[ClO₃⁻]/Δt = + 1/2 [Cl⁻] /Δt
where t is the time.
from the coefficients of the balanced chemical equation.
- Δ[ClO⁻]/Δt = + Δ[ClO₃⁻]/Δt = + 1/2 [Cl⁻ ] = rate
Δ[ClO⁻]/Δt = - 4.183 x 10⁻⁴ M/min
Answer:
A just A
Explanation:
Answer:
so is c they have the same mass.
Answer:
dinitrogen trioxide
Explanation:
It's a covalent compound. Using the naming convention of the IUPAC and prefixes.
B. before a hurricane make landfall.
C. after a severe thunderstorm
D. during a tornado
A lahar is a type of mud flow that occurs? The answer is, A. after a volcanic eruption.
Which substances are the reactants?
Answer:
reactants: HCl and NaOH
Explanation:
A chemical reaction or equation can be explained with reference of two components: the reactants and products
Reactants are atoms, molecules or ions that are present of the left side of the equation. These could either be a single entity which can break or decompose under a given conditions or they could combine with other entities appropriately to form new molecules, atoms, ions etc. These new molecules occupy the right side of the reaction and are termed as Products.
The given reaction is and acid-base neutralization reaction
HCl + NaOH -----> NaCl + H2O
Reactants:
HCl, hydrochloric acid
NaOH, sodium hydroxide
Products:
NaCl, sodium chloride
H2O, water