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SVETLANKA909090 [29]
3 years ago
15

Which describes an atom with an atomic number of nine

Chemistry
1 answer:
jonny [76]3 years ago
4 0

Answer:

Fluorine

Explanation:

fluorine is the element in question, as its atomic number is 9

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To plan ahead using REPS and Checks, choose the minimum space cushion needed to maintain folloying distance traveling at 25 MPH
BaLLatris [955]

The <em>minimum space cushion</em> defines the required amount of space which vehicles should maintain in other to afford them the time and space to gain control in emergency scenarios. Hence, the minimum space cushion required in the scenario is 4 seconds.

In cases of mishaps or accidents, the space cushion might just afford other cars the space to maneuver their way to safety rather than being caught up in the collison or accident.

The required space cushion in most scenario is usually between 2 - 5 seconds, with additional space afforded depending on the <em>length and type of the vehicle</em>.

Therefore, to ensure safety, the required minimum space cushion to be left when driving being a cargo van traveling at a <em>speed of 25mph is 4 seconds</em>.

Learn more :brainly.com/question/24535523

3 0
3 years ago
354.5 g of chlorine gas is held with a fixed volume of 70.0 L. What is the pressure of the gas in atmospheres if it’s temperatur
zaharov [31]

Answer: The pressure of the gas in atmospheres is 1.76

Explanation:

According to ideal gas equation:

PV=nRT

P = pressure of gas = ?

V = Volume of gas = 70.0 L

n = number of moles = \frac{\text {given mass}}{\text {Molar mass}}=\frac{354.5g}{71g/mol}=5moles

R = gas constant =0.0821Latm/Kmol

T =temperature =30.0^0C=(30.0+273)K=300.0K

P=\frac{nRT}{V}

P=\frac{5\times 0.0821Latm/K mol\times 300K}{70.0L}=1.76

Thus the pressure of the gas in atmospheres is 1.76

7 0
3 years ago
The layer of the Earth called the mantle is often described as convecting. In this context, convection is
-Dominant- [34]

Answer:

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

Explanation:

7 0
3 years ago
Hat type of mixture is chicken noodle soup?
Lera25 [3.4K]
Heterogeneous mixture. cause you can separate the noodles from soup
4 0
3 years ago
Write the steps used for making tea by using the words: solution, solvent,solute,dissolve,soluble, insoluble, filtrate and resid
katen-ka-za [31]

Answer:

Water is solvent and milk, tea powder and sugar is solute.

Explanation:

First take a specific mount of water in teapot which is a solvent and heat it for several minutes. After boiling of water, add 1 to 2 table spoon tea powder in water which is a solute and allow it for boiling. After that add milk and sugar according to your preference and tea is made which is a solution. The milk and sugar dissolve in the water but the tea powder did not dissolve so it can be filtrate with the help of filtration tool and all the residue trap at that tool while the tea is clean from all undissolved particles.

6 0
4 years ago
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