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zloy xaker [14]
3 years ago
12

If you repeat an experiment and the results are very different from the results you got the first time, the next step would be t

o
Select one:


a. trust the second results.

b. decide which results are better.

c. repeat the experiment again.

d. try a different experiment
Chemistry
2 answers:
Yuliya22 [10]3 years ago
5 0
Answer: option c. repeat the experiment again.

Because, the first approach is to assume that there was a mistake in one or both ot the two trials. Only if the results continue being different in several trials, you have to think in a design error and then modify the experiment.
shutvik [7]3 years ago
4 0
C , you need a definite answer , if you get a completely different results again , id say take the mean / average so you have some results
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miv72 [106K]

Answer:

Las siguientes son reacciones químicas;

combustión de leña

oxidación del hierro

descomposición del agua en hidrógeno y oxígeno

Explanation:

Una reacción química da como resultado la formación de una (s) sustancia (s) nueva (s), mientras que un cambio físico no conduce a la formación de una sustancia nueva.

Las siguientes son reacciones químicas;

combustión de leña: la combustión de madera implica la oxidación del carbono según la reacción; C (s) + O2 (g) -------> CO2 (g)

oxidación del hierro: La oxidación del hierro conduce a la formación de óxidos de hierro. Como; 2Fe (s) + O2 (g) ----> 2FeO (s)

descomposición del agua en hidrógeno y oxígeno: esta es una reacción química en la que el agua se descompone de la siguiente manera; 2H2O (l) -----> 2H2 (g) + O2 (g)

Todos estos procesos enumerados anteriormente conducen a la formación de nuevas sustancias, por lo tanto, son reacciones químicas.

3 0
2 years ago
What is the definition of bond?
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Join or be joined securely to something else, typically by means of an adhesive substance, heat, or pressure.
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3 years ago
If you are calculating the grams to mL ratio, you are trying to find the object’s…
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Answer:

Density

Explanation:

The ratio of mass to the volume of an object is called its density. Unit of mass is grams and that of volume is mL.

Density = mass/volume

\text{Density}=\dfrac{\text{grams}}{\text{mL}}\\\\=\text{grams/mL}

If you are calculating the grams to mL ratio, it means that we are trying to find the object's density.

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3 years ago
Hurry please quick summary
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I’m not sure if this is the answer you are looking for but I hope it helps :)
3 0
3 years ago
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