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melisa1 [442]
4 years ago
15

Substances which will glow in the dark after being exposed to sunlight are:

Chemistry
1 answer:
vazorg [7]4 years ago
5 0

Answer:

If something glows in the dark it is phosphorescent.

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Why would someone need to find the relative density of an object?
Ede4ka [16]

Answer:

The relative densities of an object and the liquid it is placed in determine whether that object will sink or float. An object that has a higher density than the liquid it's in will sink. An object that has a lower density than the liquid it's in will float.

Explanation:

Hope it helps!

8 0
3 years ago
Heeeeeellllppp, Iiiimmm sssooo stttuuuccckkk!​
n200080 [17]

Answer:

I think it would be D. None of the above

Explanation:

why I think this is because none of the answers really adds up to it

4 0
3 years ago
Which of the following particles are the least massive in comparison to the others?
Gekata [30.6K]

Answer:

The majority of an atoms' mass comes from the protons and neutrons that make up its nucleus. Electrons are the least massive of an atom's constituent particles, with a mass of 9.11 x 10-31 kg and a size too small to be measured by current techniques.

Explanation:

Mark as brainliest

3 0
3 years ago
A gas has a volume of 1.75L at -23C and 150.0kPa. At what temperature would the gas occupy 1.30L at 210.0kPa?
Katen [24]

Answer:

T2 = 260 K  

Explanation:

<em>Given data:</em>

P1 = 150.0 k Pa

T1 = (-23+ 273.15) K = 250.15 K  

V1 = 1.75 L  

P2 = 210.0 kPa  

V2 = 1.30 L

<em>To find:</em>

T2 = ?

<em>Formula:</em>

\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}

T_2 = \frac{P_2 V_2 T_1}{P_1 V_1}

<em>Calculation:</em>

T2 = (210.0 kPa) x (1.30 L) x (250.15 K) / (150.0 kPa) x (1.75 L)

T2 = 260 K  

8 0
4 years ago
What statement best describes the components of a mixture
Ray Of Light [21]

Answer: the statement that would best describe the components of a mixture is ho2

Explanation:

8 0
3 years ago
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