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katrin [286]
3 years ago
7

In 1932, james chadwick discovered a new subatomic particle when he bombarded beryllium-9 with alpha particles. one of the produ

cts was carbon-12. what particle did chadwick discover?
Chemistry
1 answer:
ad-work [718]3 years ago
8 0
Chadwick discovered neutron. Be + alpha particle =
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Calculate the density in g/mL of 2.0L of gasoline that weighs 1.26 kg
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2.0 L in mL :

2.0 x 1000 => 2000 mL 

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D = mass / volume

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What is the new pressure of 150 mL of a gas that is compressed to 50 mL when the original pressure was 3.0 ATM and the temperatu
Arisa [49]

Answer:

\boxed {\boxed {\sf P_2= 9 \ atm}}

Explanation:

Since the temperature is held constant, we only need to focus on the volume and pressure. We will use Boyle's Law, which states the volume of a gas is inversely proportional to the pressure. The formula is:

P_1V_1=P_2V_2

Originally, the gas had a volume of 150 milliliters and a pressure of 3.0 atmospheres. We can substitute these values into the left side of the equation.

3.0 \ atm * 150 \ mL = P_2V_2

The original gas was compressed to a volume of 50 milliliters, but we don't know the volume.

3.0 \ atm *150 \ mL= P_2 * 50 \ mL

Now, we need to solve for the new pressure (P₂). Multiply on the left side first.

450 \ atm*mL= P_2 * 50 \ mL

Since we are solving for the pressure, we need to isolate the variable. It is being multiplied by 50 mL. The inverse of multiplication is division. Divide both sides by 50 mL.

\frac{450 \ atm*mL}{50 \ mL}= \frac{P_2 * 50 \ mL}{50 \ mL}

\frac{450 \ atm*mL}{50 \ mL}= P_2

The units of milliliters will cancel.

\frac{450 \ atm}{50 }= P_2

9 \ atm =P_2

The new pressure is <u>9 atmospheres.</u>

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3 years ago
The following reaction is performed at STP. If 0.64 liters of NH3 is produced, how many liters of nitrogen gas should go into th
frozen [14]

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