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Llana [10]
3 years ago
12

What do LEGOs and DNA have in common?

Chemistry
1 answer:
dexar [7]3 years ago
4 0

Answer:

They are both building blocks

Explanation:

DNA builds up life while legos build things

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A substance changes from a solid to a liquid at its boiling point. True or false
svetoff [14.1K]
The answer is false
For an ex: an ice is a solid once it's melts cuz of the heat it's a liquid but if u boil the liquid then it's at it's boiling point

Idk I'm not that really good in science sorry......
4 0
3 years ago
Read 2 more answers
In the equation C3H8 + O2 -> CO2 + H2O, what coefficient belongs in front of the O2 group?
tankabanditka [31]

Answer:

3

Explanation:

C3H8. + 5O2. ::: 3CO2. + 4H2O

4 0
3 years ago
A 45 kg box is sitting on a window ledge 2.0 m above the ground. What is the potential energy of the box?
Travka [436]

Answer:

<h3>The answer is 900 J</h3>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

PE = 45 × 10 × 2

We have the final answer as

<h3>900 J</h3>

Hope this helps you

5 0
3 years ago
The reaction between C2H6 and Cl2 is by addition
igomit [66]

The reaction between C2H6 and Cl2 by addition is C2H4Cl2 or dichloroethane. It must be under the presence of sunlight because halogen such as chlorine cannot easily react with the sigma bond of alkane such as ethane.

5 0
3 years ago
In this equation, stands for carbon, stands for nitrogen, and stands for oxygen. Which equation represents this reaction?
Marat540 [252]
In order to answer this question we must look at the image which I have attached.

The red atoms refer to oxygen atoms, the grey atoms are carbon atoms and the blue atoms are nitrogen. Therefore, the equation from the image suggests:

2CO + 2NO → 2CO₂ + N₂

Looking closely at the options given, several of them could be eliminated immediately since they are not balanced equations like B, C and E. Therefore, only A or D could be the answers.

The answer is option <span>D.) 2CO + 2NO → 2CO2 + N2
</span>

3 0
4 years ago
Read 2 more answers
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