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LuckyWell [14K]
3 years ago
11

Why does water roll off of dry ice?

Chemistry
1 answer:
ziro4ka [17]3 years ago
8 0
It's a combination of carbon dioxide gas from the dry ice, and tiny water droplets.) ... The dry ice fog is heavier (denser) than air, so it sinks down. But it's less dense than water, so it floats on the water. The bubbles are heavier than air, but less dense than carbon dioxide fog, so they'll float on the fog.
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What is the name of(NH4)3PO4
Tju [1.3M]

Answer:

What is the name of the compound (NH4) 3PO4? (NH)4+ is an ammonium radical and (PO4) 3- is a phospate radical. When we start writing the compound,the valency of phosphate goes to ammonium as subscript,and that of ammonium goes to phosphate. Hence the formula (NH4)3 PO4 and it's name is ammonium phospate.

Explanation:

5 0
3 years ago
If the volume and moles of a container are held constant, the temperature of a gas is inversely proportional to the pressure.
noname [10]

Answer:

FALSE

Explanation:

Assuming that the gas is ideal

Therefore the gas obeys the ideal gas equation

<h3>Ideal gas equation is </h3><h3>P × V = n × R × T</h3>

where

P is the pressure exerted by the gas

V is the volume occupied by the gas

n is the number of moles of the gas

R is the ideal gas constant

T is the temperature of the gas

Here volume of the gas will be the volume of the container

Given the volume of the container and number of moles of the gas are constant

As R will also be constant, the pressure of the gas will be directly proportional to the temperature of the gas

P ∝ T

∴ Pressure will be directly proportional to the temperature

4 0
3 years ago
¿ a que se encuentra 20 moles de un gas ? ¿ si estan sometidos a 36°C en un recipiente de 20 litros?​
eimsori [14]

Answer:

can be you nice people my friend bother my sister community of college students who have had some experience in this industry and maddie intro and maddie highlights

8 0
2 years ago
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is
umka21 [38]

Answer:

50. 5mol

Explanation:

The mass of Zinc required = 3.30 kg = 3300 grams

The relation between moles and mass is:

moles=\frac{mass}{atomicmass}

Atomic mass of Zinc = 65.38g/mol

molesofZinc=\frac{3300}{65.38}

molesofzinc=50.47mol

The answer to three significant figures will be 50.5 mol

3 0
2 years ago
Which pair of formulas represents the empirical formula and the molecular formula of a compound?
AnnyKZ [126]

Answer:

CH2O and C6H12O6

Explanation:

To find an empirical formula, take a molecular formula and divide the subscript of each element by the greatest common factor of all the subscripts. In this case, the only pair that works is CH2O,C6H12O6, which can be verified by dividing the coefficients of the molecular formula by 6.

3 0
2 years ago
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