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OverLord2011 [107]
3 years ago
11

ANSWER ASAP PLEASE

Chemistry
1 answer:
user100 [1]3 years ago
3 0
Density is equal to mass divided by volume so the densest object will be the object that has the largest mass in the smallest area. In this case object A is the densest with a density of 10g/cm^3. I hope this helps. Let me know if anything is unclear.
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6.
frez [133]

Answer:

Ni^2+

Explanation:

The following data were obtained from the question:

Proton = 28

Electron = 26

Neutron = 34

Next, we shall determine the atomic number of the element.

Atomic number of an element is simply defined as the number of protons in the atom of an element.

Thus,

Atomic number = proton number

Proton = 28

Atomic number = proton number = 28

Atomic number = 28

Therefore, the element is Nickel since no two elements have the same atomic number.

Finally, we shall determine the charge on the Nickel atom as follow:

Proton = 28

Electron = 26

Charge on atom =

Charge on atom = Proton – Electron

Charge on atom = 28 – 26

Charge on atom = +2

Therefore, we can represent the Particle as Ni^2+

4 0
3 years ago
What is one use of the mineral gypsum fertilizer medicine wallboard electrical insulator
zvonat [6]

Answer:

Fertilizer

Explanation:

3 0
3 years ago
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Which of processes of water cycle occur by releasing energy
suter [353]
<span>Condensation, Freezing and Precipitation. The processes occur during water cycle that release energy are: 1) Condensation - Conversion of vapour into liquid 2) Freezing - Conversion of liquid into solid 3) Precipitation - Is basically a product of condensation, example drizzle, etc</span>
8 0
3 years ago
Calculate the mass of 0.5dm3 of a 2g/dm3 solution of silver nitrate
cupoosta [38]

Answer:

5.6

Explanation:

Because of the gravity of the earth

6 0
3 years ago
If 1.6 moles of an ideal gas are at a temperature of 25c and a pressure of 0.91 atm hg, what volume would the gas occupy, in lit
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From\ Ideal\ Gas\ Law:\\\\PV=nRT\\\\&#10;P-pressure\\V-volume\\n-number\ of\ moles\\R- universal\ gas\ constant\\T-absolute\ tmeperature\\\\&#10;R=\ 8,3145J/ mol\ K\\P=0,91atm\\&#10;n=1,6moles\\T=25c\\\\&#10;Converting\ units:\\\\&#10;1atm=101,3kPa=101,3*10^3\\&#10;0,91atm=0,91*101,3*10^3=92,183*10^3Pa\\T=25c=273+25=298K\\\\&#10;V=\frac{nRT}{P}=\frac{1,6*8,3145*298}{92183}=0,043m^3=43liters\\\\Answer\ is\ 43\ liters.
8 0
3 years ago
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