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Alisiya [41]
3 years ago
11

Please helpppppppp.will give 12 points

Chemistry
2 answers:
irinina [24]3 years ago
7 0
Vibration?
I’m not super sure.
nasty-shy [4]3 years ago
5 0

Answer:

Heat

Explanation:

When energy transfers, due to the difference in temperatures, the energy that is passed on from a surface to another surface is heat. Therefore, we get heat transfer. Heat transfers happen in 3 ways radiation, convection, and conduction.

Hoped this helped!

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Question 10 (1 point)
Vinil7 [7]

Answer:

A,C,D,B

Explanation:

1killometer=1000m

1mm=0.001m

1cm=0.01m

base unit of length is meter

7 0
3 years ago
Help with this one too please !
satela [25.4K]
The second one and the 2 last ones
4 0
2 years ago
2NaHCO3-->Na2CO3+H2O+CO2
algol [13]
I’m not sure what kind of answer you’re looking for, but if you’re supposed to translate it into a sentence it would be two moles of sodium bicarbonate(baking soda) decompose unto one mole of sodium carbonate(soda ash) plus one mole of water and one mole of carbon monoxide gas
8 0
3 years ago
C3H8+3O2 = 3CO2+4H2O what is the enthalpy combustion
dezoksy [38]

Answer:

\Delta H_{comb}=2043.85kJ/mol

Explanation:

Hello there!

In this case, according to the given chemical reaction, it possible for us to set up the expression for the calculation of the enthalpy change as shown below:

\Delta H_r=-\Delta H_{comb}=3\Delta _fH_{CO_2}+4\Delta _fH_{H_2O}-\Delta _fH_{C_3H_8}-3\Delta _fH_{O_2}

Thus, given the values of the enthalpies of formation on the attached file, we obtain:-\Delta H_{comb}=3(-393.5kJ/mol)+4(-241.8kJ/mol)-(-103.85kJ/mol)-3(0kJ/mol)\\\\-\Delta H_{comb}=-2043.85kJ/mol\\\\\Delta H_{comb}=2043.85kJ/mol

Best regards!

8 0
3 years ago
When hydrogen and oxygen combine to form water, which term is used to describe the water? A. product B. reactant C. catalyst D.
Allushta [10]
A. product


Hope it helps.........:)
3 0
3 years ago
Read 2 more answers
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