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lys-0071 [83]
3 years ago
5

Describe the current model of the atom and the characteristics of each of the 3 subatomic particles. Be prepared to provide the

number of protons, neutrons and electrons for a given element.
Chemistry
1 answer:
pantera1 [17]3 years ago
3 0

Answer:

The current model of the atom and the characteristics of each of the 3 subatomic particles are the electron cloud which contains 1 subatomic particle the electron which has negative charge and weights 1/2000 AMU the electron cloud surrounds the nucleus, the nucleus contains two subatomic particles the proton which has positive charge and weights one AMU and the neutron which has neutral/no charge and weights one AMU.

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If a linear graph has a negative slope, what can you say about the dependent variable?​
Firdavs [7]

Answer:

If a linear graph has a negative slope then dependent value decreases in value as the independent variable increases. The line with negative slope is sloping down to the right

4 0
1 year ago
What type of reaction is shown here?
ivann1987 [24]

Answer:

Depends since Chemical equation is not written clearly...

Explanation:

if if the comma represents an equal sign then I would assume that this would be a single replacement... however if this is all one equation I would assume it is a double replacement.

7 0
3 years ago
A tank contains 9000 L of pure water. Brine that contains 20 g of salt per liter of water is pumped into the tank at a rate of 2
geniusboy [140]

Answer:

20 g/L

Explanation:

To know what happens with the concentration, we must calcute the limit of the function where t → ∞. The limit is the value that the function approach when t intend to a value. So:

\lim_{t \to \infty} C(t) =  \lim_{t \to \infty}\frac{20t}{360 + t}

Dividing both for "t"

\lim_{t \to \infty} C(t) =  \lim_{t\to \infty} \frac{\frac{1}{t}20t }{\frac{1}{t}(360 + t) }

\lim_{t \to \infty} \frac{20}{\frac{360}{t} + 1 }

The limit of 1/t when t intend to infity is 0, which is demonstrated in the graph below, so:

\lim_{t\to \infty} 20 = 20

The concentration will approach 20 g/L.

6 0
3 years ago
Help ASAP<br> How many moles of O2 are in 7.23 mol P
Rudiy27
Answered above

the other user
3 0
2 years ago
When was Quartz found and how is it extracted??
Kazeer [188]

Answer:

Quartz was discovered in 1880 and they use buldozers and backhoes (to remove dust/dirt around it) and rarely explosives.

Explanation:

7 0
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