3 years ago

Which of these changes would cause a decrease in the pressure of a contained gas?

Chemistry

1 answer:

Harman [31]3 years ago

4 0

The equation is pv=nrt. So to decrease pressure, one would increase volume, decrease moles, or decrease temperature.

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Liula [17]

Answer:

yes

Explanation:

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4 0

3 years ago

PLEASE HELP!!!

neonofarm [45]

Answer:

$Cl_2+2NaI\rightarrow I_2+2NaCl$

Explanation:

Hello there!

In this case, according to the described chemical reaction, Cl2 replaces iodine in NaI in order to produce I2 and NaCl:

$Cl_2+NaI\rightarrow I_2+NaCl$

It is possible to realize how chlorine replaces iodine in agreement with the single displacement reaction. Moreover, since chlorine and iodine atoms are not correctly balanced, we add a 2 in front of both NaI and NaCl in order to do so:

$Cl_2+2NaI\rightarrow I_2+2NaCl$

Best regards!

8 0

3 years ago

How much energy is required to melt 35.4 g of gold?

kap26 [50]

Answer:

To determine the amount of heat the gold has absorbed to melt, we simply multiply the mass of the block of ice to the heat of fusion of water which is given above. We calculate as follows:

Heat = 20.0 g (35.4 g)

Heat = 1290 J

4 0

4 years ago

Josie observed that when water is boiled in an open beaker it completely disappears, leaving the beaker dry. What can Josie conc

-BARSIC- [3]

That when water is boiled in a open beaker and it disappears that it evaporates into the air

6 0

4 years ago

Write an equation for the reaction that takes place during the laboratory preparation of dry hydrogen

olya-2409 [2.1K]

Answer:

Zn+2HCl→ZnCl2+H2

Explanation:

Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc.

8 0

3 years ago