Answer:
H20
Explanation:
H20, is water and this is an example of a molecule. Molecules are "atoms bonded together." And hydrogen and oxygen are bonded making it a molecule.
Answer:
Option D. The water in Glass A is cooler than the water in Glass B; therefore, the particles in Glass A move slower.
Explanation:
Solubilities of solutes are enhanced when the temperature is increased.
From the experiment conducted,
It is evident that glass B temperature is higher than glass A temperature, because the solute dissolves faster in glass B than in glass A . This implies that glass A is cooler than glass B, hence the particles in A will move slower than that in B.
Polar molecules are molecules are essentially have no molecular symmetry.
Nonpolar molecules are molecules that have molecular symmetry.
Water is a very basic example of a polar molecule.
The question has missing information! But, with the objects and their respectives masses and specific coefficiets and with the following explanation, the question can be aswered!
Answer:
The one which has the highest product of the mass by specific heat.
Explanation:
The heat is a way of "energy in motion", which means that is a way that energy can be exchanged between substances. This exchange occurs when there is a difference in the temperature of the substances that are in contact, and then, to achieve thermal equilibrium, one substance loses heat (the one with higher temperature) and had a decrease in temperature, and the other gain heat and had an increase of temperature.
The heat loss is the same heat gained, and it can be calculated. If the substance doesn't suffer a physical change (which is the case here), then:
Q = m*c*ΔT
Where Q is the heat, c is the specific heat, and ΔT is the temperature change. So, rearranged the expression:
ΔT = Q/(m*c)
Because Q is the same for all of the objects, the one that will experience the smallest temperature change is the one that has the highest value of m*c (because it is indirectly proportional to ΔT).
Haiii, Alright so I believe your question is-
Which is related to the number of electrons in the outer main energy level of the elements from the alkali metals to the halogens?
<span>I. Group number </span>
<span>II. Period number </span>
<span>A. I only </span>
<span>B. II only </span>
<span>C. Both I and II </span>
<span>D. Neither I nor II
</span>
___________
Correct? The answer is selection, A. I Only. :3
