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Lyrx [107]
3 years ago
9

Which equation using element symbols correctly describes the reaction: "One molecule of methane plus two molecules of diatomic o

xygen react to form two molecules of water and one molecule of carbon dioxide?"
Chemistry
2 answers:
MrMuchimi3 years ago
8 0

Answer:

CH4+2O2→2H2O+CO2

8090 [49]3 years ago
5 0
What the other comment said it’s right :)
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Which statements below are an appropriate hypothesis in response to this question? Check all that apply. If a substance changes
Nostrana [21]

Answer:

If a substance undergoes a physical change, then it will retain most of its original properties because no new substance is formed.

If a substance undergoes a chemical change, then it will not retain its original properties because a new substance is formed.

Explanation:

So in shorter words its options 2 and 3

6 0
2 years ago
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How much energy is required to melt 35.4 g of gold?
kap26 [50]

Answer:

To determine the amount of heat the gold has absorbed to melt, we simply multiply the mass of the block of ice to the heat of fusion of water which is given above. We calculate as follows:

Heat = 20.0 g (35.4 g)

Heat = 1290 J

4 0
3 years ago
Why is stainless steel harder than pure iron
lord [1]
Something made of pure iron<span> is softer </span>than steel<span> because the atoms can slip over one another. If other atoms like carbon are added, they are different from </span>iron<span> atoms and stop the </span>iron<span> atoms from sliding apart so easily. This makes the metal </span>stronger<span> and </span>harder<span>.</span>
3 0
3 years ago
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In which example is a physical property being describe?
earnstyle [38]
Are there choices? Because if there are that would help A LOT, but if there are no choices I can give some examples of physical properties, though there are MILLIONS, here are a few :) .

Physical property examples are: color, smell, freezing point, boiling point, melting point, attraction or repulsion to magnets and viscosity and density. If these are not options, please let me know :)

Have a great day, let me know if I can help with anything else, have a great day, and, if you have time, mark brainiest, I would really appreciate it, thanks! :D
7 0
3 years ago
Diferencia entre red trofica y cadena trófica
Angelina_Jolie [31]

Answer:

Una cadena alimentaria es una secuencia lineal de organismos a través de la cual los nutrientes y la energía pasan de un organismo a otro mediante consumo. ... Las redes tróficas consisten de varias cadenas alimentarias interconectadas y son una representación más realista de las relaciones de consumo en los ecosistemas

Explanation:

A food chain is a linear sequence of organisms through which nutrients and energy pass from one organism to another by consumption. ... Food webs consist of several interconnected food chains and are a more realistic representation of consumption relationships in ecosystems

6 0
3 years ago
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