What is one example of a scientific theory?

1 answer:

7 0

The theory or relativity. The Big Bang theory (not the show. In science, the big bang theory is a real theory). I know that was two, I just wanted to give you more than one example! Please give me brainiest!

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Sawing a board in half is an example of a chemical change

koban [17]

Sawing a board in half is a physical change not a chemical change the board doesnt change wood or whatever material it is is still would still be wood
If it were burned it would be a chemical change but its properties stay the same atomically so thats why its not a chemical change.

4 0

3 years ago

How can pH go high over time

Natali5045456 [20]

Factors that raise pH in a swimming pool. 1. Natural pH Rise: Carbon Dioxide Loss. The chemistry of pH sounds a lot more complicated than it is. In short, the less CO 2 in solution, the ... 2. Sanitizers and their pH Impact. 3. pH and alkalinity adjustment chemicals.

4 0

3 years ago

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When most fuels burn, water and carbon dioxide are the two main products. Why can´t you say that water and carbon dioxide are pr

STatiana [176]

That is only the combustion of a hydrocarbon. Rust is a combustion reaction because oxygen is added.

Fe(s) + O2(g) => FeO2(s)

7 0

2 years ago

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Please help me and I’ll give you brainiest!!!!!!!!! Have a wonderful day!!:)))

Step2247 [10]

Answer:

up down up down thats the pattern

Explanation:

5 0

2 years ago

Boron sulfide, B2S3(s), reacts violently with water to form dissolved boric acid (H3BO3) and hydrogen sulfide gas

Gwar [14]

The equation structure for the above mentioned reaction can be written as

$B_{2} S_{3}+6 H_{2} O \rightarrow 2 H_{3} B O_{3}+3 H_{2} S \uparrow$

Explanation:

Considering the above reaction, When Boron sulfide, reacts with water more violently to form boric acid and hydrogen sulfide gas.

$B_{2} S_{3}+H_{2} O \rightarrow H_{3} B O_{3}+H_{2} S \uparrow$

In order to balance the equation, we can do as follows.There are 2 B - atoms on both sides of the equation, but only 2 H - atoms, and one O - atom on LHS, so we have to balance it by putting 6 in front of water and 2 in front of Boric acid and 3 in front of hydrogen sulphide gas, so that we have 2 B - atoms, 3 - S atoms, 12 H - atoms on both sides of the equation, and it is balanced. Balanced equation is given as,

$B_{2} S_{3}+6 H_{2} O \rightarrow 2 H_{3} B O_{3}+3 H_{2} S \uparrow$

Thus a Balanced equation of the above mentioned reaction is written.

8 0

2 years ago