Calculate the wavelength of light with a frequency of 1.89 x 1018 Hz.

1 answer:

6 0

Which sentence from "Black Hole Beginnings" contains a cause-and-effect relationship?
More matter mounts up on the outside, increasing the pressure on the inside.
Instead it is a dramatic melding, or blending, of atoms, called nuclear fusion.
Each atom has its own tiny center, or nucleus.
Surrounding each nucleus is an electrical force field..

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Nastasia [14]

Sodium chloride is used for ice cream makers because it's inexpensive, readily available, and non-toxic.

Rock salt has been a staple in the ice-melting industry for a long time and is still very popular for use at home and by public utilities

Potassium chloride, rock salt, magnesium chloride and calcium chloride are the most common ice-melting salts used today. Ice melters are not naturally hot; they do not melt ice as the term suggests, but rather, they act to depress or lower the freezing point of the snow or ice they are spread on. This allows the salt or chemical particles to bore their way through ice and form a layer of brine under the surface, which helps the top layer of ice break up. If the brine is able to remain in place, it will continue to melt any snow or ice that comes in contact with it.

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Which is a complex molecule? a. H2 b. Ne c. Co d. H20

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$h{}^{2} o$

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Bases have which of the following

sp2606 [1]

Answer:

Explanation:

Bases are defined as having a pH over 7. That means that There are more OH- ions than H+ ions.

The answer is D.

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Name an ionic compound or a covalent compound, explain why it is ionic or covalent

stellarik [79]

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IOnic compound is NAcL cuz in the periodic table eft are metal and right are non metal makes it ionic (different)

Explanation:

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vesna_86 [32]

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i also had this question.

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