I think option one because if the molecules are moving in place, they are tightly packed like a solid. if they are moving around each other, that would mean they could move more freely like a liquid.
Answer:
multipennate; triangular
Explanation:
The deltoid is referred to as the muscle that plays an important role in the ability for the arm to be lifted and also the movement of the shoulder. It is found at the upper part of the shoulder and arm. The fascicle of the deltoid which is represent bundle of fibers of the muscle is multipennate, meaning it is has several tendons arranged at several angles.
The pectoralis is a muscle located at the chest region of humans. It takes up a large portion of the chest muscles and prominent under the breast. The fascicles of the pectoralis is triangular, meaning it is converged towards one tendon.
Answer:
2 electrons
Explanation:
According to the octet rule, atoms must bond to each other, sharing electrons among themselves in an attempt to complete their valence shell (last layer of the electrosphere). In other words, an atom becomes stable when it has 8 electrons in its valence shell.
Oxygen atoms have six electrons in their valence shell, so to achieve the stability suggested by the octet rule (eight electrons), these atoms share two electrons, forming one oxygen gas (O₂) molecule.
Answer:
The activation energy depends on reactive species.
Explanation:
The minimum amount of energy required by the reacting species in order to start a specified reaction is called activation energy. Without activation energy, the reaction can be started so activation energy is very important for occurring of a chemical reaction. There are different amount of activation energy is needed to start different chemical reactions so we can conclude that activation energy depends on the type of reactive species and on the reaction.
