most planets have --- but none has a --- like earth does. A. a biosphere; hydrosphere., B. an atmosphere; cryosphere., C. an atm
2 answers:
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As the temperature increases, B) the molecules started moving faster.
Explanation:
The temperature of a substance is a measure of the average kinetic energy of the particles in a substance. In particular, it can be found that the temperature is directly proportional to the average kinetic energy of the particles:
The kinetic energy of a particle is given by
where
m is the mass of the particle
v is its speed
This means that the higher the temperature of a substance, the greater the speed of the particles in the substance.
Therefore, if we apply this concept to this problem, we infer that as the temperature of the water in the pond gets higher, the speed of the molecules inside the water increases, which means that the molecules are moving faster.
Therefore, the correct answer is
B) the molecules started moving faster.
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In a 0.15 m solution of malonic acid, the amount of the malonate anion, c3h2o42-, is .
Explanation:
For the first equlibria;
initial concentration of
initial concentration of
initial concentration of
Let concentration change of
Let concentration change of
Let concentration change of
Let concentration in equilibrium state of
Let concentration in equilibrium state of
Let concentration in equilibrium state of
Therefore,
Which is a quadratic equation in x, solving it gives;
Therefore,
Now for the second equlibria;
initial concentration of
initial concentration of
initial concentration of
Let concentration change of
Let concentration change of
Let concentration change of
Let concentration in equilibrium state of
Let concentration in equilibrium state of
Let concentration in equilibrium state of
Therefore,
Therefore,
The chemical formula of malonic acid is CH2(COOH)2. Malonates include the ionized form of malonic acid as well as its esters and salts. For instance, the diethyl ester of malonic acid is called diethyl malonate.
Polyester and polymers both employ malonic acid as a precursor. Both the scent business and the flavoring sector utilize it. It is employed to regulate acidity. Malonic acid contributes to the production of fatty acids in people. Malonic acid has been found in a number of foods outside of the human body, including red beets, corn, scarlet beans, common beets, and cow milks, although its presence has not been defined. The group of organic substances known as dicarboxylic acids and derivatives includes malonic acid, also known as malonate or H2MALO.
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