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pishuonlain [190]
3 years ago
5

In addition to ash, what is produced when wood burns

Physics
1 answer:
Genrish500 [490]3 years ago
8 0
I believe the answer is: B (oxygen and carbon dioxide)

I am not for sure, but good luck!
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Will award brainliest and upvote if you can help answer! ​
erica [24]

Answer:

Omqnp

Explanation:

I have done this before and got it correct

7 0
2 years ago
In a city grid, each block on the east-west streets is 100 meters long. Each block on the north-south streets is 20 meters long.
alex41 [277]

Answer:

72.1 m

Explanation:

Hello!

When the walker walks west, each block he walks will be of 100 m, so the walker walked 4*100m = 400 m west.

Similarly, when the walker walks south, he walks 20 meters per block, therefore, the walker walked 4*20 m = 80 m south.

Since the directions west and south are perpendicular, the distance between the start ad end point is:

d = √(400^2 + 80^2) m = 407.92 m

However the walker traveled 480 m

Therefore, the walker traveled 480 - 407.9 m = 72.1 m farther than the actual distance

8 0
3 years ago
Fiona followed these steps for a scientific investigation: 1. Collect baking soda and vinegar 2. Pour baking soda into a bowl. 3
horrorfan [7]

<u>Answer:</u> The correct statement is combining baking soda and vinegar will cause a chemical change.

<u>Explanation:</u>

A chemical reaction is defined as the reaction in which two or more chemical substances react to form two or more different chemical substances

A new substance (product) is formed in a chemical reaction when the bonds between the reactants are broken so that the new bonds between the products can be formed.

A physical process is defined as the process in which the physical state of matter takes place. Like, in the process of vaporization, a liquid state changes to the gaseous state without changing the composition of species.

When baking soda (Sodium bicarbonate) is reacted with vinegar (acetic acid), it leads to the formation of sodium acetate, water, and carbon dioxide.

A new compound is getting formed in this process which is denoted by the chemical equation:

NaHCO_3+CH_3COOH\rightarrow CH_3COONa+H_2O+CO_2

Hence, the correct statement is combining baking soda and vinegar will cause a chemical change.

7 0
3 years ago
Q)How is a conductor different from an insulator. A)A Conductor contains free electrons. B)A conductor contains free protons. C)
I am Lyosha [343]

A conductor contains electrons that are bound so weakly to their atoms
that they can be ripped away with a small voltage, and sent scurrying in
the direction of the higher potential.

5 0
3 years ago
Read 2 more answers
A battery having an emf of 9.76 V delivers 111 mA when connected to a 60.5 Ω load. Determine the internal resistance of the batt
kow [346]

Answer:

r = 27.4 \: ohm

Explanation:

Using

E = I(R + r)

9.76 = 111 \times  {10}^{ - 3} (60.5 + r) \\ 87.928 = 60.5 + r \\ r = 27.4 \: ohm

5 0
3 years ago
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