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Alik [6]
3 years ago
13

If a car travels 60 miles in 3 hours, what is the car’s speed?

Chemistry
2 answers:
marysya [2.9K]3 years ago
6 0
Answer = 20 mph !
Hope this helps
Andrews [41]3 years ago
4 0
It's probably about 20 miles per hour because that's REALLY slow
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(b) If 45.0% of the ethanol that did not produce the ether reacts by the side reaction, what mass (g) of ethylene is produced?
Finger [1]

Ethylene is a hydrocarbon which has the formula C ₂H ₄ or H₂C=CH₂. It is a colourless flammable gas with a faint "sweet and musky" odour when pure. It is the simplest alkene.

Ethylene is widely used in the chemical industry, and its worldwide production exceeds that of any other organic compound.

<h3>What is ethylene used for?</h3>

Medical: Ethylene is used as an anaesthetic. Metal Fabrication: Ethylene is used as oxy-fuel gas in metal cutting, welding and high velocity thermal spraying. Refining: Ethylene is used as refrigerant, especially in LNG liquefaction plants. Rubber & Plastics: Ethylene is used in the extraction of rubber.

<h3>Is ethylene harmful to humans?</h3>

* Ethylene gas can affect you when breathed in. * Skin contact with liquid Ethylene can cause frostbite. * Exposure to Ethylene can cause headache, dizziness, fatigue, lightheadedness, confusion and unconsciousness. * Ethylene is a HIGHLY FLAMMABLE and REACTIVE chemical and a DANGEROUS FIRE and EXPLOSION HAZARD.

Learn more about ethylene here:

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3 0
1 year ago
What kind of radioactive element is useful for dating an object?
OlgaM077 [116]

The kind of radioactive element is useful for dating an object is one with a half-life close to the age of the object.

<h3>What are radioactive elements?</h3>

Radioactive elements are elements that involved in radioactivity and this comprises of atoms or particles in their nuclei whose atomic nuclei are not stable and they emit radiations to maintain stability.

Therefore, The kind of radioactive element is useful for dating an object is one with a half-life close to the age of the object.

Learn more about radioactive elements below.

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4 0
2 years ago
Explain why argon is used in tungsten filament lamps​
PSYCHO15rus [73]

Answer:

Because it helps the filament from decaying

5 0
3 years ago
Which of the following is the correct scientific notation for 0.0000782 g?
Dominik [7]
The correct scientific notation is 7.82 x 105 g
7 0
3 years ago
Read 2 more answers
Show the calculation of the mass (grams) of a 14.5 liter gas sample with a molecular weight of 82 when collected at 29°C and 740
mote1985 [20]

Answer:

In this conditions, the gaswll weight 46.74 g.

Explanation:

The idal gas law states that:

PV = nRT,

P: pressure = 740 mmHg = 0.97 atm

V: volume = 14.5 L

n: number of moles

R: gas constant =0.08205 L.atm/mol.K

T: temperature = 29°C = 302.15K

n = \frac{PV}{RT} \\n = \frac{0.97x14.5}{0.082 x 302.15 } \\n = 0.57 mol

1 mol gas ___ 82 g

0.57 mol gas __ x

x = 46.74 g

4 0
2 years ago
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