b. 3
c. 5
d. 6
It would be: 2*3 = 6 oxygen atoms
OPTION D IS YOUR ANSWER......
The temperature change indicates an increase in the average kinetic energy of the molecules in a sample is 15°C to 298 K. Thus option 1 is correct.
Kinetic energy is defined as a form of energy that an object or particle has by the reason of its movement.
It can also be defined as the measure of the work that an object does by virtue of its motion.
Average kinetic energy is defined as a product of half of the mass of each molecule and the square of RMS speed.
The kinetic energy id directly proportional to temperature, with increase in temperature kinetic energy increases.
Thus, the temperature change indicates an increase in the average kinetic energy of the molecules in a sample is 15°C to 298 K. Thus option 1 is correct.
To learn more about kinetic energy, refer to the link below:
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volcanoes erupting
underwater earthquakes
O greenhouse gases forming
evaporation from lakes and rivers
Answer:
Option D:
evaporation from lakes and rivers
Explanation:
The water cycle is a natural cycle that shows how water moves and circulates within a natural environment. Water usually moves between the hydrosphere and the atmosphere through evaporation and condensation.
When water evaporates from the hydrosphere (the water bodies), it goes up into the atmosphere where it cools to become clouds. As more water evaporates, the clouds formed increase in mass. Once the clouds are too heavy to be held up in the sky, they fall down as precipitation (rain, snow, hail) into the water bodies and surrounding land below.
catalytic converter
food preservatives
amino acids
Answer:
catalytic converter
Explanation:
A heterogeneous catalyst is one that has a phase different from the reactant molecules. A catalyst speeds up a chemical reaction by lowering the activation energy required to start the reaction. But a catalyst does not undergo any change in the chemical process. Catalysts in a catalytic converter are metallic palladium or platinum that react with the hydrocarbons and carbon monoxide from the exhausts of a car to form carbon dioxide and water.
A heterogeneous catalyst is a catalyst that works in a different phase than the reactants. An example of this is a catalytic converter, used in cars to convert harmful emissions into less harmful substances.
In chemistry, a heterogeneous catalyst is a catalyst that exists in a different phase from the reactants. The primary purpose of a heterogeneous catalyst is to accelerate a certain chemical reaction without being consumed in the process. A clear example of a heterogeneous catalyst is a catalytic converter used in vehicles. The function of a catalytic converter is to convert harmful engine emissions into less harmful substances through catalysed chemical reactions. It includes metals like Platinum, Palladium, and Rhodium, which are what actually does the catalysis.
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