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QveST [7]
3 years ago
8

Number the steps for balancing equations:

Chemistry
2 answers:
Novosadov [1.4K]3 years ago
7 0

Answer:

3,4,2,1

Explanation:

shtirl [24]3 years ago
6 0

Answer:

The correct answer will be 3,4,2,1

Explanation:

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Orlov [11]
2.) Average atomic mass =Σ (abundance x molar mass) /100 = (12.64 x 302.04 + 18.23 x 304.12 + 69.13 x 305.03) /100 =304.486 u(Dalton) . This is avg atomic mass.

8 0
3 years ago
Suppose that a wave has a period of 0.03 seconds what is its frequency be sure to show the steps for your work
Reil [10]

Answer:

f = 33.34 Hz

Explanation:

A wave has a period of 0.03 seconds. It is required to find the frequency of a wave. The relation between time period and frequency is inverse. The time period of a wave is given by :

T = 1/f, f = frequency of wave

f=\dfrac{1}{T}\\\\f=\dfrac{1}{0.03}\\\\f=33.34\ Hz

So, the frequency of the wave is 33.34 Hz.

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3 years ago
What is the equation of sodium phosphide
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Looking at the car in the picture above, explain how the electrons act to form this compound that is on the surface of the car,
dmitriy555 [2]

Answer:

The correct answer is "Iron and oxygen act as Fe3+ and O2− ions respectively, forming rust (Fe₂O₃) in the presence of water by the formation of an ionic bond".

Explanation:

Rust is formed when iron reacts with oxygen in the presence of water (either if the iron is submerged or exposed to moisture in the air), forming the chemical compound Fe₂O₃. The presence of water is needed for rust formation because iron and oxygen act as ions when they are exposed to water, particularly Fe3+ and O2− ions respectively. The bond formed between these two elements are ionic bonds, because it is comprised of the reaction between a metal (iron) and a non-metal (oxygen).

5 0
3 years ago
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