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Sati [7]
3 years ago
5

How can heat from the sun transfer from the cement to your feet

Chemistry
1 answer:
Svet_ta [14]3 years ago
6 0
The sun is beating down on the concrete. it's a hot day, and you're in the house where it's conditioned. Your feet are fairly cool. When you step outside on the concrete the coldness in your feet seep into the concrete, and the heat from the concrete takes the cold away. It's like when a pot is on the stove, the pan transfers all it's cold to the hot, and the fire replaces the cold. Hope this helps!
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Why doesn't glass exhibit crystalline form
ser-zykov [4K]
It doesn't have a 3 dimensional pattern
7 0
3 years ago
Phosphoric acid, which is commonly used as rust inhibitor, food additive and etching agent for dental and orthopedic use, can be
lana66690 [7]

Answer: P_4(l)+5O_2(g)+3H_2O(l)\rightarrow 2H_3PO_4(l)  

Explanation:

We are given two reactions which are the two steps of a mechanism:

P_4(l)+5O_2(g)\rightarrow 2P_2O_5(g)       ......(1)

P_2O_5(g)+3H_2O(l)\rightarrow 2H_3PO_4(l)        .......(2)

To determine the net chemical equation, we will multiply equation 2

P_2O_5(g)+3H_2O(l)\rightarrow 2H_3PO_4(l)\times 2  

2P_2O_5(g)+6H_2O(l)\rightarrow 4H_3PO_4(l) .......(3)

Adding (1) and (3)

P_4(l)+5O_2(g)+3H_2O(l)\rightarrow 4H_3PO_4(l)  

Thus, the net balanced chemical equation is:

P_4(l)+5O_2(g)+3H_2O(l)\rightarrow 4H_3PO_4(l)  

6 0
3 years ago
Toluene, c6h5ch3, is a liquid compound similar to benzene, c6h6. it is the starting material for other substances, including tri
babymother [125]
Toulene = 35.6 g 
Benzene = 125 g = 0.125 kg
 Molecular weight of Toluene C6H5CH3 = 92.1g/mol
 Moles of toulene = 35.6 g / 92.1 g/mol = 0.3865 mol

 Now the molarity of the toulene in the given solution = 0.3865 / 0.125 = 3.092 m 
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6 0
3 years ago
Read 2 more answers
Compare properties of covalent compounds and ionic compounds. Which of the following properties differ because of differences in
____ [38]

Answer:

The answer to your question is below

Explanation:

                                ionic compounds                  covalent compounds

1.- Mass                          it does not depend on the type of compound

2.- Conductivity      -conduct electricity               - do not conduct electricity

                                  in solution.

3.- Color                  - Shiny                                     - opaque

4.- Melting point     - high                                       - lower than ionic compounds

5.- Boiling point     - high                                        - lower than ionic compounds

6.- flammability      - not flammable                       - flammable

6 0
2 years ago
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Methane has the chemical formula of CH4 and would, therefore, it would be<br> considered...
tatiyna

Answer:

compound

Explanation:

A compound contains more than one element.

Methane's chemical formula (CH4) indicates that it consists of one carbon atom and four hydrogen atoms.

Therefore, methane is a compound.

5 0
2 years ago
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