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dmitriy555 [2]
3 years ago
15

Please help y’all I don’t understand

Chemistry
2 answers:
insens350 [35]3 years ago
8 0

Answer:

multiatomic is the answer

Kruka [31]3 years ago
6 0
ANSWER: C

Hope this helped have a nice day!
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For each claim below, select whether you think this claim is supported by evidence or not. Elisa is feeling tired because she ha
MaRussiya [10]

Answer and Explanation:

Elisa is feeling tired because she has diabetes - suported: diabetes, in fact, can trigger episodes of extreme tiredness in patients, this tiredness may have been accompanied by dizziness and being.

Elisa is feeling tired because she has anemia. - Supported: Anemia hampers the transmission of oxygen in the blood, which can cause tiredness, weakness and extreme fatigue.

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8 0
3 years ago
I need help fast please !
Alona [7]

Answer:

substance A is water and substance B is chlorophyll

Explanation:

7 0
3 years ago
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A rock falls from a ledge to the ground. What energy conversion occurs
Gnoma [55]

Answer:

Explanation:

Potential energy is converted into kinetic energy. I am 100% positive.

6 0
4 years ago
What is the change in enthalpy when 11. 0 g of liquid mercury is heated by 15°c?
Vlad1618 [11]

Enthalpy change is the difference between energy used and energy gained. The change in enthalpy of the liquid mercury is 0.0231 kJ.

<h3>What is the enthalpy change?</h3>

Enthalpy change is the difference between the energy used to break chemical bonds and the energy gained by the products formed in a chemical reaction.

The enthalpy change is given by,

\rm \Delta H_{rxn} = \rm q_{rxn}

and,

\rm q = mc\Delta T

Given,

Mass of the liquid mercury (m) = 11.0 gm

The specific heat of mercury (c) = 0.14 J per g per degree Celsius

Temperature change = 15 degrees Celsius

Enthalpy change is calculated as:

\begin{aligned} \rm q &= \rm mc\Delta T\\\\&= 11 \times 0.14 \times 15\\\\&= 23.1 \;\rm J\end{aligned}

Therefore, 0.0231 kJ is the change in enthalpy.

Learn more about enthalpy change here:

brainly.com/question/10932978

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2 years ago
Muscle Activity
sasho [114]
I’m pretty sure it would be B
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3 years ago
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