3 years ago

If you burn a piece of wood, it becomes a different substance. What type of

Chemistry

2 answers:

lbvjy [14]3 years ago

8 0

Answer:

B. Chemical property

Explanation:

zlopas [31]3 years ago

8 0

Answer:

Explanation:

a reaction has taken place in which you can't get back what you started with

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100

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There are several ways to model a compound. One type

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C4H9O2

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there are 4 carbons, 9 hydrogens and 2 oxygens

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Question 2(Multiple Choice Worth 4 points) (01.01 MC) Dominic and Eva are using the same type of stopwatches to measure the time

LekaFEV [45]

The results of Dominic and Eva's experiment is unreliable and can lead to a pseudoscientific claim primarily because they did not repeat their tests multiple times. Although, they used the same type of stopwatch in recording the time it takes for the chemical reaction to occur, they have different reactions times. Thus, it would have been better if they conducted several trials then obtained the average of their results.

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The monomer of poly(vinyl chloride) has the formula C2H3Cl. If there are 1,565 repeat units in a single chain of the polymer, wh

monitta

Answer:

$\large \boxed{9.780 \times 10^{4}\text{ u}}$

Explanation:

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C₂H₃Cl = 2×12.01 + 3×1.008 + 35.45 = 24.02 + 3.024 + 35.45 = 62.494 u

For 1565 units,

$\text{Molecular mass} = \text{1565 units} \times \dfrac{\text{62.494 u}}{\text{1 unit }} = \mathbf{9.780 \times 10^{4}}\textbf{ u}\\\\\text{The molecular mass of the chain is $\large \boxed{\mathbf{9.780 \times 10^{4}}\textbf{ u}}$}$

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I'll mark brainliest!! :)

Viefleur [7K]

I believe the answer is C, AgBr. I hope this helps

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3 years ago