Because the coldness in the ice cream and the suns gamma rays are hitting the ice cream and then it will start to melt. and that is why ice cream melts.
Answer:
Macroscopic observation
Explanation:
The observation is macroscopic because you could observe the transformation with the naked eye.
The correct answer is - B) 650.
The Red Sea is a sea that grows in size because it is widening all the time. The rate of the widening is 1.25 centimeters per year, so it is not something that can be easily seen during a normal human lifespan, but over a longer period of time it will have a much different shape, size, and influence in the region. It is located between the African and the Arabian tectonic plates as an elongated thin sea with a northwest-southeast direction.
The widening of the Red Sea is due to the movement of the tectonic plates. Africa is moving towards northwest, and that makes it slowly distance itself from the Arabian plate, thus opening more space for the Red Sea.
In order for the Red Sea to widen another 812.5 centimeters, will be required 650 years, and we can come to the result by simple dividing the required number of the width with the annual widening.
812.5 / 1.25 = 650.
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Answer:</h3>
Ionic compounds
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Explanation:</h3>
What are ionic compounds?
- Ionic compounds are compounds that are formed due to ionic bonds between atoms.
- Ionic bonds are formed between metallic atoms and non-metallic atoms.
What are examples of ionic compounds?
- Examples of ionic compounds include, KCl, NaBr, MgCl₂, etc
How do ionic compound ionize in water?
- Ionic compounds ionizes when dissolved in water to form mobile ions.
- When dissolved in water they may serve as electrolytes due to the presence of free ions which will be responsible for conduction of electricity.
- For example, NaCl ionizes to form Na⁺(aq) and Cl⁻(aq).
When there is an increase in pressure, the equilibrium will shift towards the side of the reaction with fewer moles of gas. When there is a decrease in pressure, the equilibrium will shift towards the side of the reaction with more moles of gas.
