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djverab [1.8K]
3 years ago
14

Test (Speed, Velocity and Acceleration)

Chemistry
1 answer:
Troyanec [42]3 years ago
5 0

Answer:

1.5 miles

Explanation:

Given that,

Speed of dog, v = 15 mph

Time taken by the dog, t = 0.1 h

We need to find the distance travelled by the dog. We know that, distance is the product of speed and time. So,

d=vt

d=15\times 0.1\\\\d=1.5\ \text{miles}

Hence, the dog will cover a distance of 1.5 miles.

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Carbon disulfide is prepared industrially by reacting carbon with sulfur dioxide according to the above equation. If 70.8 g of c
Rus_ich [418]

Answer:

1.18 moles of CS₂ are produced by the reaction.

Explanation:

We present the reaction:

5C + 2SO₂  →  CS₂  +  4CO

5 moles of carbon react to 2 moles of sulfur dioxide in order to produce 1 mol of carbon disulfide and 4 moles of carbon monoxide.

As we do not have data from the SO₂, we assume this as the excess reagent. We convert the mass of carbon to moles:

70.8 g / 12 g/mol = 5.9 moles

Ratio is 5:1, so 5 moles of carbon react to produce 1 mol of CS₂

Then, 5.9 moles will produce (5.9 . 1) / 5 = 1.18 moles

8 0
3 years ago
What is the total distance covered if you walk 5 meters to the north 5 meter east 5 meters south
mihalych1998 [28]

0! because you walked back in forth in diferent direcions

8 0
3 years ago
soaps feel slippery on our hands because they dissolve the oil on our skin, decreasing friction. this is because soap contains
KATRIN_1 [288]
Because the oily part of its molecule tends to lay up against solid surfaces, but without much in the way of areas of electric charge that would cause it to stick more firmly to that surface.
4 0
3 years ago
A gas occupies a volume of 180 mL at 35oC and 740 mmHg. What is the volume of the gas at STP?
Tasya [4]

Answer:

there you go

Explanation:

6 0
3 years ago
10 atoms of aluminum reacts with 6 molecules of oxygen gas to produce aluminum oxide. 4 Al + 3 O2 ––> 2 Al2O3 What is the exc
Mrrafil [7]

The excess reactant is Aluminum.

<u>Explanation:</u>

We have to write the balanced equation as,

4 Al+ 3 O₂ → 2 Al₂O₃

According to the molar ratio 4: 3, from the given balanced equation, we can say that 4 atoms of Al reacted with 3 molecules of oxygen.

Given that 10 atoms of aluminum reacts with 6 molecules of oxygen, as per the ratio only 8 atoms of Aluminum is required to react with 6 molecules of oxygen, so excess reactant is Aluminum.

8 0
3 years ago
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