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kogti [31]
3 years ago
14

• Certain ____________ emit certain colors of light from the ______________ light spectrum.

Chemistry
2 answers:
drek231 [11]3 years ago
5 0
I do not know the first blank but the second one is most likely is visible
vovikov84 [41]3 years ago
4 0
Do you have options to choose from? that would be a big help so I can answer ur question
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What characteristics are shared by all alkali metals and alkaline earth metals?
serious [3.7K]

Answer:

All alkali and alkaline earth metals dissolves in water to form alkaline solutions.

Explanation:

The alkali metals are found in group one of the periodic table while the alkaline earth metals are found in group 2. These two groups of elements are quite reactive and they react very well with air and water. All the elements in the two groups react with water to give rise to alkaline solutions; solutions whose pH range from 8 to 14.

8 0
4 years ago
Which of these are animal adaptations that help animals live in the deciduous forest biome? Select all that apply.
marysya [2.9K]

Answer:

hard outer skin to reduce loss of water

Explanation:

please mark me as brainliest answer

4 0
3 years ago
A sample of 19 mg of 9-fluorenone is dissolved in 5 mL of diethyl ether. The resulting organic
maks197457 [2]

Answer:

15.70mg would remain

Explanation:

Partition coefficient is used to extract or purify a solute from a solvent selectively to avoid interference from other substances. For the problem, formula is:

Kp = Concentration 9-fluorenone in ether / Concentration of solute in H₂O

After the solute, 9-fluorenone, is extracted with water, the mass that remains in ether is:

(19mg - X)

<em>Where X is the mass that now is in the aqueous phase</em>

Replacing in Kp formula:

9.5 = (19mg - X) / 5mL / (X /10mL)

0.95X = 19mg - X / 5mL

4.75X = 19 - X

5.75X = 19

X = 19 / 5.75

X = 3.30mg

That means 9-fluorenone that remain in the ether layer is:

19mg - 3.30mg =

<h3>15.70mg would remain</h3>
8 0
4 years ago
What is Ksp in chemistry?
NeX [460]
A substance's solubility product, Ksp<span>, is the mathematical product of its dissolved ion concentrations raised to the power of their stoichiometric coefficients. Solubility products are relevant when a sparingly soluble ionic compound releases ions into solution.</span>
7 0
4 years ago
A 30 N net force on a softball player produces an acceleration of 0.5m/s2 what is the mass of the player
KatRina [158]

Answer:

<h3>m=60k.g</h3>

Explanation:

<h3>F=m×a......m=f/a</h3><h3>m=30k.gm/s^2÷0.5m/s^2</h3><h3>m=60k.g</h3>
4 0
3 years ago
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