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murzikaleks [220]
2 years ago
6

Eddie and val observed the picture of an athlete running in a race. eddie stated the picture shows potential energy being transf

ormed to kinetic energy. val stated that it shows chemical energy being transformed to mechanical energy. which best explains who is correct?
a) only eddie is correct because the picture does not show a transformation that starts with chemical energy.
b) only eddie is correct because the picture does not show a transformation that ends with mechanical energy.
c) both eddie and val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.
d) both eddie and val are correct because chemical energy is a type of kinetic energy and mechanical energy includes potential energy.
Chemistry
2 answers:
Lelu [443]2 years ago
5 0

Answer:

C. Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.

lidiya [134]2 years ago
3 0

C. Both Eddie and Val are correct because chemical energy is a type of potential energy and mechanical energy includes kinetic energy.

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5 0
3 years ago
At one point in the Bike Trip described in the passage, you traveled 1 kilometer in 0.1 hours. What was your speed during that t
stealth61 [152]

Answer:

v = 10 km/h

Explanation:

Step 1: Given data

  • Distance traveled in the Bike Trip (d): 1 km
  • Time elapsed in the Bike Trip (t): 0.1 h

Step 2: Calculate the speed in the Bike Trip

The speed (v) is equal to the distance traveled divided by the time elapsed. We will use the following mathematical expression.

v = d/t

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3 years ago
How many grams of nitric acid will react completely with a block of iron metal that is 4.5 cm by 3.0 cm by 3.5 cm, if the densit
denpristay [2]

Balance the equation first: 

2 Fe+6 HNO3→2 Fe(NO3)3+3H2

Then calculate mass of Iron :

4.5×3.0×3.5 cm3(1 mL1 cm3)(7.87 g Fe1 ml)=371.86 g Fe

Now use Stoichiometry:

371.86 g Fe×(1 mol Fe55.85 g Fe)×(6 mol HNO32 mol Fe)=19.97 mol HNO3

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7 0
2 years ago
Read 2 more answers
Please help, only a couple of days left!!!
s344n2d4d5 [400]

Answer:

the heat from the universe during the big bang

a.k.a.

ITS A

Explanation:

the universe is still expanding, so what is gonna be used to create that new matter that's expanding the universe? energy and heat from the beginning of the universe! the universe started off as this point that was probably smaller than a quantum foam and infinite heat and started expanding from there

3 0
2 years ago
Read 2 more answers
If you use 1 mole of NaOH, how much NaAl(OH)4 is produced
abruzzese [7]
Answer:
             81.97 g of NaAl(OH)₄

Solution:
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                 2 NaOH  +  2 Al  +  6 H₂O    →    2 NaAl(OH)₄  +  3 H₂

According to this equation,

          2 Moles of NaOH produces  =  163.94 g (2 mole) of NaAl(OH)₄
So,
       1 Mole of NaOH will produce  =  X g of NaAl(OH)₄

Solving for X,
                     X  =  (1 mol × 163.94 g) ÷ 2 mol

                     X  =  81.97 g of NaAl(OH)₄
5 0
3 years ago
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