Answer:
Explanation:
Temperature is defined as the average kinetic energy of the molecules of a substance. When a substance is cooled, the average kinetic energy of its molecules is reduced tremendously. Thus, the molecules of the substance no longer move at high speeds.
Gases, according to the ideal theory of gas molecules do not associate but are infinitely free and move at very high speeds. However, when cooled, the kinetic energy of these molecules become sufficiently low so as to allow intermolecular association. Secondly, compressing the carbon dioxide gas increases the pressure and decreases its volume. This further makes the carbon dioxide molecules to associate more rapidly. Since dry ice is sublime, CO2 doesn't pass through a liquid state, rather a highly ordered solid-state called dry ice is formed.
Answer:
D
Explanation:
Shows the distance between each new wave.
Answer:
24 m/s
Explanation:
V=Vi+at
given initial velocity is 0, acceleration is 2 and time is 12 sec
find final velocity by plugging in the variables into the equation above.
V=0+2x12=24m/s
Answer:
A. Manganese(II) Phosphate Mn3(PO4)2
Explanation: The cation combines with anion through coloumbic forces to form an ionic compound.
The cation combines with anion in the ratio of 3:2 so as to form a neutral and stable compound named as Manganese(II) phosphate.
The IUPAC name of ionic compounds are written as:
First the name of the cation is written with its oxidation state in brackets. Then the name of the anion is written.
