Answer:
mechanical weathering through the process of ice wedging
Explanation:
Answer:
In cold climates, the freezing and thawing that occurs causes rapid mechanical weathering through the process of ice wedging. In warmer climates, chemical weathering is more rapid because the chemical reactions that dissolve rocks and minerals are accelerated by warm temperatures.
Explanation:
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b. nicotine
c. carbon dioxide
d. carbon monoxide
B is the correct answer, thankyou.
Answer : Option B) Attempt to control the conditions.
Explanation : While conducting an experiment, a scientist should always attempt to control the reaction conditions.
If the reaction conditions are not controlled one can lose the expected result or observation that was supposed to be generated from the experiment. Like controlling the given temperature, pressure, addition of catalysts, etc. If these conditions are overlooked one may not achieve the expected results and will not reach to the conclusion.
According to the Arrhenius theory a substance that yields hydrogen ions as the only ion in an aqueous solution is Acid.
Acids are those substances which are having pH range from 0 to 7.
According to the Arrhenius theory of acid and base, acids are those compounds which donate H⁺ ion or proton in the aqueous medium and bases are those substances which donate OH⁻ ion in the aqueous medium.
Example of Arrhenius acids are HCl, CH₃COOH, HNO₃, etc.
Hence, those substance which yields H⁺ ions is acids.
To know more about acids, visit the below link:
A rate equation can be written based on the rate constant k, concentration of reactants and half life time t1/2 of reactant if given. [A⁰] is the initial concentration of reactant A and [A]t be the final concentration.
Rate of a reaction is the rate of decrease in concentration of reactants or rate of increase in concentration of products. Rate of the reaction written in terms of molar concentration of reactants is called the rate law.
Consider the simplest reaction A gives B. Here the only one reactant is A. The molar concentration of A is written as [A]. The rate constant k is then,
k = [B] / [A]
If any coefficients attached with them it is written as power of the concentration term. Now, the rate of the above reaction is written as follows:
rate r = k [A]
Sometimes the initial and final concentrations of A can be considered. Where, [A⁰] is the initial concentration and [A]t be the final concentration.
The half life t1/2 is the time taken to consume half of the reactants concentration.
To find more about rate law, refer the link below:
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B. volume and temperature only
C. volume and pressure only
D. pressure, volume, and temperature
Answer:
The correct option is D
Explanation:
The combined gas law is a combination of the three gas laws; Boyle's law, Charles' law and Gay-Lussac's law. It describes the relationship of the product of the pressure, volume and temperature of a gas to a constant as shown in the formula below
P₁V₁/T₁ = P₂V₂/T₂
Where P₁ is the initial pressure
V₁ is the initial volume
T₁ is the initial temperature (in Kelvin)
P₂ is the final pressure
V₂ is the final volume
T₂ is the final temperature (in Kelvin)