Hey there!
Kinetic energy means that something is in motion.
Therefore, the answer would be B. Bird in flight because it’s the only choice that suggests is moving.
Hope this helps!
God bless ❤️
xXxGolferGirlxXx
A substance is an element if it consists of a single type of atom. A substance is a compound if it is made up of more than one element.
<h3>Elements and compounds</h3>
In chemistry, an element is defined as all pure substances consisting of the same atom. For example, magnesium and potassium metal are all elements because they consist of magnesium and potassium atoms only.
On the other hand, compounds are defined as substances consisting of 2 or more atoms of different elements. For example, sodium chloride consists of atoms of sodium and chlorine. Hence, it is considered to be a compound.
More on elements and compounds can be found here: brainly.com/question/13516179
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Answer:
None of the above statements is True
Explanation:
- According to Graham's law, the effusion rate and the square root of the molecular mass of a gas are inversely proportional. Therefore, heavy gas particles diffuse slower compared to light particles which effuse at a faster rate.
- Particles of different masses have varying average speeds at a given temperature. Large molecules effuse at a slower rate compared to smaller molecules.
- The diffusion rate of a gas increases with an increase in temperature because higher temperature increases the kinetic energy of particles of the gas making them move faster.
Answer:
The answer to your question is Ca
Explanation:
Ne has its octet completed so, this option is wrong. Neon is stable.
C Carbon has 4 valence electrons not 2, it should lose 4 electrons to complete an octet, so this option is wrong.
N Nitrogen has 5 valence electrons not 2 , so it should gain 3 electrons to complete an octet.
Ca Calcium is the right answer it has to electrons in its outermost shell, it have to lose 2 electrons to complete an octet.
