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Alisiya [41]
3 years ago
13

Question 1: Which of the following is an example of an exothermic chemical reaction?

Chemistry
1 answer:
Allushta [10]3 years ago
5 0

Answer:

the answer is D

Explanation:

the reason how ik this is that i already did this test so yea

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How many molecules would be in 2.5 moles of H2O.show work
Fantom [35]

Answer:

1.5x 10^24

Explanation:

for every 1 mol there are 6.02 x 10^23 molecules

2.5 mol x 6.02 x 10^23

-----------------

1 mol

5 0
3 years ago
Please match the orbital type with the correct number of orbitals
saul85 [17]
Hi there!

p = e-3
s = f-1
f = i-7
d = g-5

Hope that helps!
Brady
7 0
3 years ago
How can we keep our voices in tip top shape? Please list the three things we can do to help our voices. Which would you say is m
Alisiya [41]

Answer:

help our vocos

Explanation:

5 0
2 years ago
13. When a train car traveling at 4 m/s collides with a stationary train car, what happens to the momentum of the first train ca
Solnce55 [7]

Answer:

Momentum of first train car will reduce

Explanation:

When the moving care collides with the stationary car, it will increase the momentum of the stationary car. However, its own momentum will reduce.

It is so because the speed of the first train car will reduce after collision due to loss of energy in the collision while the stationary car may gain some momentum due to rise in velocity from zero (velocity at stationary position).

5 0
2 years ago
Convert 13.4 degrees celcius into kelvin​
Alenkasestr [34]

Answer:

286.55K

Explanation:

To convert to kelvin , add 237 .15

13.4\°C + 273.15 = 286.55K

5 0
2 years ago
Read 2 more answers
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