The true statements are:
- It has gravitational potential energy because of its height.
- Its atoms and molecules have thermal energy.
<h3>What is energy?</h3>
Energy is the ability to do work.
Energy can exist in many form, two of which are kinetic and potential energy.
The worker is holding a filled gas cylinder still gives the gas potential energy by lifting it above the ground.
The molecules of the gas also has kinetic energy by virtue of their constant random motion resulting in thermal energy.
In conclusion, the energy of the filled gas is both potential and kinetic.
Learn more about kinetic energy at: brainly.com/question/24116470
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Remember the saying: King Henry Drinks Dark Chocolate Milk. (KHD|DCM)
I would say your answer is C, or the last one. Hope it helps
Answer:
The correct order of the elements, taking into account their ionic radius from highest to lowest, is:
<em>a) Cl⁻¹ > F⁻¹ > Na⁺¹ > Mg⁺²</em>
<em>b) S⁻² > O⁻² > Li⁺¹ > Be⁺²</em>
<em>c) S⁻² > Cl⁻¹ > K⁺¹ > Na⁺¹</em>
Explanation:
In ions the ionic radius is determined by the amount of electrons an element gains or loses to become an ion. The more negative an ion is, the greater its ionic radius.
As a rule, anions (negative charge) have a larger ionic radius than cations (positive charge), because the loss of electrons means a contraction of the ionic radius, while the gain of electrons means a greater radius.
To determine which ionic radius is greater in anions or cations with the same charge, it must be considered that in the periodic table the ionic radius increases from top to bottom and from right to left.
Learn more:
Ionic radius example brainly.com/question/2279609
Answer:
<em>The correct option is B) two liquids are mixed at room temperature and a gas forms.</em>
Explanation:
A chemical change can be described as a change which results in the formation of a new substance by the reactants. In the option B, two liquids react to form a new product which is a gas. Hence, it is an example of chemical change.
Other options,like option D, is not a chemical change as by crushing a solid no new product is formed. Option C is also not correct because as when salt dissolves in water, no new product is made.
