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blsea [12.9K]
1 year ago
8

The density of ice is 920 kg/m³ and that of water is 1000 kg/m³ calculate the relative density​

Chemistry
1 answer:
STatiana [176]1 year ago
7 0

When the density of ice is 920 kg/m³ and that of water is 1000 kg/m³ then the relative density​ will be 0.92 kg/m³​

The ratio of a substance's density to given reference material is known as its relative density. For gases, the reference is air at room temperature, but relative gravity for liquids is almost often calculated in relation to the densest possible form of water.

RD= ρ substance/ρ reference

ρ substance = the density of the substance = 920 kg/m³

ρ water = the density of water at 4.0°C, 1000 kg/m3

RD = 920/1000 kg/m³

RD= 0.92kg/m³

Learn more about density here:

brainly.com/question/15164682

#SPJ9

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I grabbed these from my science notes, hope this helps.
4 0
3 years ago
The atomic weight of Ga is 69.72 amu. There are only two naturally occurring isotopes of gallium:
irga5000 [103]

Answer:

71 Ga has a naturally abundance of 36%

Explanation:

Step 1: Given data

Gallium has 2 naturally occurring isotopes: this means the abundance of the 2 isotopes together is 100 %. The atomic weight of Ga is 69.72 amu. This is the average of all the isotopes.

Since the average mass of 69.72 is closer to the mass of 69 Ga, this means 69 Ga will be more present than 71 Ga

Percentage 69 Ga> Percentage 71 Ga

<u>Step 2:</u> Calculate the abundance %

⇒Percentage of 71 Ga = X %

⇒Percentage of 69 Ga = 100 % - X %

The mass balance equation will be:

100*69.72 = x * 71 + (100 - x)*69

6972 = 71x + 6900 -69x

72 = 2x

x = 36 %

71 Ga has a naturally abundance of 36%

69 Ga has a naturally abundance of 64%

3 0
3 years ago
A board measures 212 inches. How many feet is this?
quester [9]
17.6667 Feet is the answer.
6 0
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klemol [59]

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Explanation:

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YOU MUST SHOW ALL STEPS OF THE G.U.E.S.S. METHOD CORRECTLY. NO UNITS=WRONG ANSWER
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Answer:

The equation for wave speed can be used to calculate the speed of a wave when both wavelength and wave frequency are known. Consider an ocean wave with a wavelength of 3 meters and a frequency of 1 hertz. The speed of the wave is: Speed = 3 m x 1 wave/s = 3 m/s.

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Explanation:

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