Answer:
Explanation:
Earth is considered a closed system because only energy, not matter, is exchanged. A closed system like Earth can be easily represented by a sealed jar. When the lid is sealed, matter like air or water can neither enter nor exit the jar. If you placed that same jar in a 100-degree oven, the air inside the jar would eventually increase in temperature to 100 degrees, representing an exchange of energy known as heat.
The spring constant determines how far the spring will stretch for a given applied force: <span>F=kx→k=<span>Fx</span></span><span>. If we place the same mass on the two springs, which means we have placed the same force on them, the one that stretches </span>least<span> has the largest spring constant.
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In an aqueous solution of lithium chloride (LiCl), the ions present in solution are lithium cations (Li+) and chloride anions (Cl-), and the water molecules (H2O).
Lithium chloride is an ionic salt, and therefore, fully dissociates or ionizes upon dissolution in water. From the chemical formula of lithium chloride, we can say that 1 lithium ion (positively-charged) only needs 1 chloride ion (negatively charged) to form the salt. Thus, upon dissociation of 1 molecule of LiCl, only 1 lithium ion, and 1 chloride ion form.
Water is a molecule formed by covalent bonds and <u>generally</u>, does not dissociate to form ions. However, if we consider the very minor contribution of the dissociation of water, hydroxide (OH-) ions and hydronium (H3O+) ions will also be present. However for water, very few molecules, only 1 in 550 million, are dissociated at any given time. Thus, we can consider the presence of the OH- and H3O+ ions to be negligible and just identify the molecular undissociated form of water to be present.
The biomolecule that contains hydrogen, oxygen, nitrogen, carbon, and phosphorus is known as a nucleic acid.
These acids are very important when it comes to heredity molecules, DNA and RNA.
Answer:
The correct answer is option C.Water molecules move throughout the solute
Explanation:
The basic standard for solute disintegration in a specific dissolvable is "like breaks up like". On account of water, a solute will disintegrate if it is polar. This is on the grounds that water is a polar dis-solvable. A polar substance is one which has particles that have a net charge on them. This net charge produces powers of fascination.
At the point when a polar solute is added to water, the water atoms are pulled in to the solute particles and they join to them. In the wake of appending to the water atoms, the solute particles are scattered all through the water. Accordingly, the appropriate response is particles or particles of a solute spread all through the water atoms.
