A binary star system is made of
Answers
Answer:
Two stars
Explanation:
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and reactants are equal.
B. The rate of the forward reaction equals the rate of the reverse reaction and the
concentrations of products and reactants are equal.
C. The rates of the forward and reverse reactions are zero and the concentrations of products
and reactants are constant.
D. The rate of the forward reaction equals the rate of the reverse reaction and the
concentrations of products and reactants are constant.
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The best statement which describes a reaction in a state of equilibrium is letter D. The rate of the forward reaction equals the rate of the reverse reaction and the concentrations of products and reactants are constant.
>Chemical equilibrium is defined as the state in which both reactants and products are present in concentrations which have no further tendency to change with time. This state results when the forward reaction proceeds at the same rate as the reverse reaction. The reaction rates of the forward and backward reactions are generally not zero, but equal. Thus, there are no net changes in the concentrations of the reactant(s) and product(s).
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The longer the alkyl chain is, the lesser the reactivity of the alcohol and vice versa.
What are alcohols?
Alcohols are substances that possess the -OH functional groups. We know that the reactivity of the alcohol depends on the length of the alkyl group.
Now, the longer the alkyl chain is, the lesser the reactivity of the alcohol and vice versa. This is why the rate of reaction of high molecular weight alcohols is low.
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acceptor
(B) acceptor
(C) donor
(D) donor
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False
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SuperHelperThingy
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Which of the following elements has the greatest electron affinity among the halogens?
Answer: A. Chlorine
B. Drying wood in a shed
C. Melting ice to obtain water
D. Evaporating alcohol into vapor
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Coal combustion causes a chemical change. Burning coal in a furnace will result in a chemical change. Therefore, option A is correct.
What is chemical change ?
A chemical change is the transformation of one material into another, the formation of new materials with different properties, and the formation of one or more new substances. It occurs when one substance reacts with another to form a new substance.
Coal combustion causes a chemical change. The main component, carbon, is converted to carbon dioxide when coal is burned. This process is irreversible.
When carbon is burned, it produces carbon dioxide, and hydrogen produces water. Each of these reactions generates a different amount of heat. Because this process cannot be reversed, coal combustion is a chemical change.
Thus, option A is correct.
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