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Citrus2011 [14]
3 years ago
7

In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products?

Physics
2 answers:
klemol [59]3 years ago
7 0
I’m not very sure but I think it’s 4
Alik [6]3 years ago
3 0
The answer is the second one
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Answer:

C. Both

Explanation:

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2 years ago
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Given that on Earth, gravity causes an acceleration of 9.8 m/s2, what is an acceleration of 7 g?
zzz [600]

Answer:

68.6 m/s^2

Explanation:

1 g = 9.8 m/s^2

so

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7 0
2 years ago
explain why if charge cannot be created or destroyed, electrically neutral objects can become electrically charged
natali 33 [55]
Charge is actually either excessive number or electrons or shortage of them.
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5 0
3 years ago
Calculate the change in length of a 90.5 mm aluminum bar that has increased in temperature by from -14.4 oC to 154.6 oC
nignag [31]

Answer:

 ΔL = 3.82 10⁻⁴ m

Explanation:

This is a thermal expansion exercise

          ΔL = α L₀ ΔT

          ΔT = T_f - T₀

where ΔL is the change in length and ΔT is the change in temperature

Let's reduce the length to SI units

          L₀ = 90.5 mm (1m / 1000 mm) = 0.0905 m

let's calculate

          ΔL = 25.10⁻⁶ 0.0905 (154.6 - (14.4))

          ΔL = 3.8236 10⁻⁴ m

     

using the criterion of three significant figures

          ΔL = 3.82 10⁻⁴ m

5 0
3 years ago
Why does the biosphere not have distinct boundaries?​
Alexeev081 [22]

Answer:

living things are found in air, water, and soil.

Explanation:

7 0
3 years ago
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