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lukranit [14]
4 years ago
12

Two different liquids are mixed together. Which observation indicates that an exothermic chemical reaction has taken place?

Chemistry
2 answers:
amid [387]4 years ago
8 0
Well for one, A LOT of heat (or if you wanna call it energy) is being released from the mixture and the container itself starts to heat up and you can DEFINITELY feel the heat. EXO: Outside, exterior. THERMIC: Heat, something to describe hot stuff (I guess).

SO you can say it heats up the outside container and occasionally will produce steam or foam (DEPENDING ON WHAT YOU MIX)
fenix001 [56]4 years ago
4 0

your answer is: a rise in temperature

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Please answer! Tap on the photo❤️
lina2011 [118]

Answer:

E

Explanation:

no of grams in picture c = A+B

= 200+10 =210

for D its also 210 ..... the water already contains the salt .....so the mass of salt has added to the mass of water which is still 210

that's all .... have fun

6 0
3 years ago
Energy is transferred from an organism to the physical environment through __________.
Gala2k [10]
A hope it helps ur welcome
3 0
3 years ago
A push or pull that moves or changes and object when to objects touch
viktelen [127]
I don’t get what you are trying to say be more specific so I can help
6 0
3 years ago
Read 2 more answers
What is 3.5x10^2 x 8.0x10^-2 in scientific notation
docker41 [41]
Scientific notation is defined as writing a number between 0 to 10 multiplied by a power of 10
3.5 x 10² x 8.0 x 10⁻²
when we solve the equation 
answer - 28 
to write in scientific notation the decimal point should come after the first digit from the right. to bring the decimal point from after digit 8 to after digit 2, we have to move one decimal place to the left. then we get 2.8, to get the value as 28 we have to multiply 2.8 by 10
therefore answer is 
2.8 x 10¹
6 0
3 years ago
Assuming that the bath contains 250.0 g of water and that the calorimeter itself absorbs a negligible amount of heat, calculate
Anvisha [2.4K]

Answer:

-3272     kJ/mol

Explanation:

Given and known facts

Mass of Benzene = 0.187 grams

Mass of water = 250 grams

Standard heat capacity of water = 4.18 J/g∙°C

Change in temperature ΔT = 7.48°C

Heat

=250 * 4.18 * 7.48\\=7816.6 \\=7.82

Heat released by benzine is - 7.82 kJ

Now, we know that

0.187 grams of benzene release = -7.82  kJ heat

So, 1 g benzine releases

\frac{ -7.82 }{0.187}\\= -41.8

kJ/g

0.187 * \frac{1}{78.108}=0.00239 mol C6H6

Heat released

= \frac{-7.82}{ 0.00239}

=-3272     kJ/mol

4 0
3 years ago
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