1 year ago

Question 1 of 32

Chemistry

1 answer:

guajiro [1.7K]1 year ago

8 0

The answer is c I believe! The order that makes the most sense to me is c,d,b,a

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A student sees a change in mass in the lab when mixing two chemicals what is a possible explanation?

Hitman42 [59]

Answer:

The mixing of two chemicals may result in the production of a gas which is lost to the air. This will reduce the mass of the chemical mixture, because mass is being lost in a gaseous form.

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2 years ago

If a gas is initially at a pressure of 9 atm, a volume of 21 liters, and a temperature of 253 K, and then the pressure is raised

alex41 [277]

Answer:

15.04 mL

Explanation:

Using Ideal gas equation for same mole of gas as

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

Given ,

V₁ = 21 L

V₂ = ?

P₁ = 9 atm

P₂ = 15 atm

T₁ = 253 K

T₂ = 302 K

Using above equation as:

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

$\frac {{9}\times {21}}{253}=\frac {{15}\times {V_2}}{302}$

Solving for V₂ , we get:

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2 years ago

Which of the following is an example of a distance force?

elixir [45]

C. A magnet causing a metal object to move

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2 years ago

If a nitrogen atom has a -3 net charge, how many electrons does it have?

malfutka [58]

Answer:

If the nitrogen atom is a neutral atom, it will have seven electrons orbiting the nucleus of the atom. This is because neutral atoms get their neutral...

Explanation:

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2 years ago

Topic: Room Preparation Select one physician assisted examination or procedure, can be routine or surgical. Create a checklist o

kvasek [131]

I don't know the answer. Can I ask your help to answer that question? pls.

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3 years ago