The chemical formula for the compound strontium sulphide would be SrS.
Answer:
Explanation:
A) O2 (non polar covalent)
B) HF (polar covalent)
C) NaCl (because its ionic)
im not 100% sure hope it helps
Answer:
C
Explanation:
The reason why C is true is because this species of plant requires certain things to survive, and without said requirements they will die. Hence, the animal that is unable to compete will die and be eliminated from the ecosystem. Hope that helps!
Energy transfer is not an efficient process.
Explanation:
There is less amount of energy in the top of the energy pyramid than at the bottom because energy transfer is not an efficient process. During the process of energy transferring, some amount is lost and some are converted to other forms of energy.
- The sun is the ultimate source of energy for all life in the solar system.
- When autotrophs takes this energy, they produce food from it.
- They use light energy from the sun to produce chemical energy in food.
- Even this conversion process waste precious amount of energy.
- As one goes up the pyramid, more energy is lost during the process of converting from one form to another.
Learn more:
laws of thermodynamics brainly.com/question/11769517
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Option C: The dissociation of a polar covalent compound in water.
Sugar is made up of sucrose molecules containing polar covalent bonds. They have same type of oxygen-hydrogen covalent bonds that are present in water.
Since, sugar is not an ionic compound, option a and option b are incorrect. Also, due to same type of bonding in water and sugar molecules there will be no such force of attraction between them, this will opt out the option d.
Thus, dissolution of sugar in water is the dissociation of a polar covalent compound in water and option c is correct.
