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padilas [110]
3 years ago
14

HURRY PLEASE HELP 5 x 10^4 ÷ 2.5 x 10^2 =

Chemistry
1 answer:
weqwewe [10]3 years ago
7 0

Answer:

1600

Explanation:

5×10^4÷2.5×10^2

(5×10^4)

(10^4)

(5×40)

(200)

(200÷2.5)

(80)

(80×10^2)

(10^2)

(20)

(80×20)

Answer is 1600.

Sorry if it's not correct.

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Fe + O2 + H₂O- & Fe2O3 + H₂O. balance por el método de tanteo​
AveGali [126]

Answer:

Fe + O2 + H₂O___ Fe2O3 + H₂O.

6Fe+302+H2O______2fe 203+H2O

5 0
3 years ago
If water and hydrogen peroxide both consist of hydrogen and oxygen atoms, explain why they have different chemical and physical
lana [24]
Water and hydrogen peroxide are different compounds although they have the same kind of atoms. The molecular formula of water is H2O (two atoms of oxygen chemically bonded to one atom of oxygen). The molecular formula of hydrogen peroxide is H2O2, (each atom of oxygen is chemical bonded to one atom of H and other atom of O). So,<span> the presence of different chemical bonds leads to different products with different chemical properties.</span><span />
5 0
3 years ago
Pls help !! it’s a timed quiz answer
inysia [295]
There are 6 Nitrogen atoms
6 0
2 years ago
Consider the equation: S+302 →SO3 Is this equation balanced? Why or why not?
Talja [164]
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5 0
3 years ago
Suppose it took 108 joules of energy to raise a bar of gold from 25 °C to 29.7°C. Given that the specific heat capacity of gold
Lady bird [3.3K]

Answer:

m = 180 g

Explanation:

Given data:

Energy absorbed = 108 J

Mas of gold = ?

Initial temperature = 25°C

Final temperature = 29.7 °C

Specific heat capacity of gold = 0.128 J/g.°C

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT =29.7 °C - 25°C

ΔT = 4.7 °C

108 J = m ×0.128 J/g.°C ×4.7 °C

108 J = m ×0.60 J/g

m = 108 J/0.60 J/g

m = 180 g

3 0
3 years ago
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