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AVprozaik [17]
4 years ago
8

Balance following equation then classify the reaction as synthesis (s)decomposition (d) single replacement (SD)double replacemen

t (DD )or combustion(c)
___h2+__O2 ➡___H2O
Classify___
Physics
1 answer:
stiv31 [10]4 years ago
6 0
2H₂ + O₂ ⇒ 2H₂O
Classify: S (=synthesis)
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URGENT! Please help me with 7-9 and if possible can you please explain why :)!
faust18 [17]
7) c
opposite charges attract, equal charges repell
8) c
Followed from equation
9) d
Same reason as under 7
8 0
3 years ago
How fast a car goes is known as its
Dvinal [7]
How fast a car goes is known as its speed.

Speed = (distance covered) divided by (time to cover the distance)

It has nothing to do with the direction the car is going.
______________________________________

The car's velocity is its speed AND the direction it's going.

30 miles per hour . . . speed

40 miles per hour north . . . velocity

20 miles per hour south
20 miles per hour west . . . . . same speed, different velocity

-- 'Velocity' is NOT a big word that you use when you mean
'speed' but you want to sound smarter.  It's a different thing.

-- If you don't know anything about the direction the car is going,
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-- If the car is going around a curve, then its velocity is constantly
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4 0
3 years ago
What is santa's average speed when visiting houses if he visits 800 million houses over 48 hours?
goldenfox [79]

Well, "speed" normally = (total distance covered) / (time to cover the distance).

In this case, we don't know the total distance that Santa has traveled, so the question can be answered only if we're willing to consider some other meaning of "speed".

Maybe we could say that in this case, "speed" means the average rate at which he visits houses. Then ...

Speed of visits = (total houses visited) / (time to visit them).

Speed of visits = (800 million houses) / (48 hours)

Speed of visits = 16.67 million houses per hour.

That's 277.8 thousand houses per minute

That's <em>4,630 houses per second</em>

8 0
3 years ago
A basketball is thrown for a free throw at 10m/s an angle of 20 degrees, makes it into the hoop and lands on the ground. Find th
Kruka [31]

Answer:

2

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because uWU

6 0
3 years ago
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A ball is accelerating down a hill. Which statement is true?
Andrew [12]

Answer:

The potential energy increases and the kinetic energy decreases

8 0
3 years ago
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