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Tanzania [10]
3 years ago
7

Which of the following is a chemical equation that accurately represents what happens when sulfur and oxygen react to form sulfu

r trioxide? A. Sulfur and oxygen react to form sulfur trioxide. B. S and O2 produce SO3. C. S + O2right-pointing arrow SO3 D. 2S + 3O2 right-pointing arrow 2SO3
Physics
1 answer:
muminat3 years ago
4 0
<span>D. 2S + 3O2 right-pointing arrow 2SO3 Let's look at the 4 options and see what the issues are with each of the wrong ones. A. Sulfur and oxygen react to form sulfur trioxide. * This is just a quick description, but nothing quantitative. How much sulfur? How much oxygen? Are the reactants single atoms or molecules? Not enough information, so this is the wrong choice. B. S and O2 produce SO3. * Just replacing words with element abbreviations does't fix the problem. So it's still wrong. C. S + O2 right-pointing arrow SO3 * This is getting closer. We have the correct symbols for the reactants and product. But the equation doesn't balance. On the left hand side, there are 2 oxygen atoms and on the right hand side, there's 3. Where did the 3rd oxygen atom come from? So it's still wrong. D. 2S + 3O2 right-pointing arrow 2SO3 * This is correct. We know that we're using elemental sulfur and an oxygen molecule on the left hand side. Actually 2 atoms of elemental sulfur and 3 molecules of oxygen gas. And we're producing 2 molecules of sulfur trioxide. And the numbers of each type of atom match in count on both sides. So this is the correct answer.</span>
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6 0
3 years ago
The 0.15kg baseball has a speed of v=30 m/s just before it is struck by the bat. It then travels along the trajectory shown befo
notka56 [123]

The magnitude of the average impulsive force imparted to the ball if it is in contact with the bat is 6000 N

The mass of the baseball, m = 0.15 kg

The speed at which it moves, v = 30 m/s

Time at which the baseball was in contact with the bat, t = 0.75 ms

t = 0.75/1000 s

t  = 0.00075 s

The impulsive force is given by the formula:

F=\frac{mv}{t}

Substitute m = 0.15 kg, v = 30, and t = 0.00075s into the formula above:

F=\frac{0.15 \times 30}{0.00075} \\\\F=6000N

The magnitude of the average impulsive force imparted to the ball if it is in contact with the bat is 6000 N

Learn more here: brainly.com/question/25892144

4 0
2 years ago
Wax paper and frosted glass are translucent. This means that when light hits them:
Furkat [3]
The answer is the last one
6 0
3 years ago
What is the acceleration during the pushing-off phase, in m/27 Express your answer in meters per second squared. A bush baby, an
Sindrei [870]

Answer:

a = 12.78 g's

Explanation:

Height reached by the object after push off is given as

H = 2.3 m

v_f^2 - v_i^2 = 2 a s

now we have

0 - v^2 = 2(-9.81)(2.3)

v = 6.72 m/s

now we know that this push last for total distance of 0.18 m

so during the push we will have

v_f^2 - v_i^2 = 2 a d

6.72^2 - 0 = 2a(0.18)

a = 125.35 m/s^2

now in terms of g = 9.81 m/s/s we have

a = \frac{125.35}{9.81} gs

a = 12.78 g's

6 0
3 years ago
The force to move something toword you is called​
faust18 [17]

Answer:

Work

Explanation:

work is defined as the use of force to move an object. For work to be done, the force must be applied in the same direction that the object moves.

6 0
3 years ago
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