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atroni [7]
3 years ago
14

True or false: a physical property is a characteristic of matter that you cannot observe or measure without changing the identit

y of matter
Chemistry
1 answer:
Ganezh [65]3 years ago
4 0
That is false, hope this helps.
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The main product of the photosynthesis reaction is
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Answer: Sugar

Explanation: Because after photosynthesis (Carbon dioxide, water, and sunlight) react, they make two products. Glucose (A sugar) and Oxygen.

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3 years ago
How many carbon atoms are represented by the model below<br><br> A) 0<br> B) 3<br> C) 2<br> D) 1
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Answer:

Option (B) 3.

Explanation:

In the model represented above, the two extreme represent carbon atoms since no other group are attached to it. The joint at the middle also represent carbon atom.

Thus, we can write a more simplify illustration for the model above as

C—C—C

From the above illustration, we can see that the model contains 3 carbon atom.

5 0
3 years ago
The balanced chemical equation for the combustion of butane is: 2C2H2 + 5O2 CO2 + 2H2O 2CH4 + 5O2 2CO2 + 4H2O 2C4H10 + 13O2 8CO2
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Butane is C₄H₁₀.

C_4H_{10} + O_2 \to CO_2 + H_2O \\ \\&#10;\hbox{balance carbon and hydrogen on the right-hand side:} \\&#10;C_4 H_{10} + O_2 \to 4 \ CO_2 + 5 \ H_2O \\ \\&#10;\hbox{balance oxygen on the left-hand side:} \\&#10;C_4 H_{10} + \frac{13}{2} \ O_2 \to 4 \ CO_2 + 5 \ H_2O \\ \\&#10;\hbox{multiply by 2 to get rid of the fraction:} \\&#10;2 \ C_4H_{10} + 13 \ O_2 \to 8 \ CO_2 + 10 \ H_2O

The balanced equation is 2 C₄H₁₀ + 13 O₂ <span>→</span> 8 CO₂ + 10 H₂O.
3 0
3 years ago
When a hot piece of iron is placed in cool water,
Papessa [141]
A i believe is the answer
8 0
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a certain country, pivate enterprises provide various goods and services But the govemment provides tree public transportation a
puteri [66]
Mixed economy. Wherever the private and public sector have an active role, they are determined to be a mixed economy.
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3 years ago
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