Answer:
yellow
if not sorry that's though the best answer
Explanation:
Image #1 is clearly sharing their electrons to complete an octet, which makes me believe it is a Double Bond.
Image #2 is a duplicate (if my computer is displaying this picture correctly) which if this is the case and my computer isn't the issue I'd say it is a Double Bond. I don't think "above" and "below" make a difference but it may depend on the attachments and where they were originally placed. Either way Image #1 and #2 are Double Bonds.
Image #3 if I recall accurately is where 4 valence electrons must be gained. I'm a bit fuzzy with valence electrons and recommended viewing Crash Course on this if you'd like to perfect your understanding on Valence Electrons, but I recall a similar question and I remember 4 valence electrons for this type of image. Wish I could help more on this. :(
Answer:
NH₃
Explanation:
The hydrogen bond is a specially strong type of dipole-dipole interaction. For a hydrogen bond to occur, a molecule must have a hydrogen atom and a very electronegative atom, such as nitrogen, oxygen or fluorine. The hydrogen atom has a positive charge density while the heteroatom has a negative charge density.
<em>Which of the following molecules can form hydrogen bonds? </em>
NH₃ YES
NaH NO
HI NO
BH₃ NO
CH₄ NO
Answer:
Solutions with low pH have a sour taste.
Explanation:
ANSWER
The temperature at which it boils is a measure of its physical property
STEP-BY-STEP EXPLANATION:
Firstly, we need to define the physical and chemical property of matter
The physical property of matter is characteristic of matter that is not associated with a change in its chemical composition. The physical properties include; <em>color, density, hardness, melting, and boiling point.</em>
The chemical property of matter is characteristic of matter that is associated with a change of matter from one type to another type. The chemical properties include; <em>Flammability, toxicity, acidity, reactivity, etc.</em>
When a liquid is boiled, it changes its state from liquid to vapor, this change of state is associated with the physical property of matter.
Hence, the temperature at which it boils is a measure of its physical property