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Ghella [55]
3 years ago
7

When water boils in a pan on a hot burner, heat gets to the water mainly by. A. absorption of heat from the air in the room. B.

conduction of heat through the pan. C. radiation of heat through the pan. D. reflection of heat from the burner.
Chemistry
2 answers:
xxTIMURxx [149]3 years ago
5 0
B. The heat travels to the pan and therefore heats the water
lana [24]3 years ago
3 0

Answer: Option (B) is the correct answer.

Explanation:

When heat transfers from one substance to another substance without their movement and both substances having difference in temperature then this process of transferring heat is known as conduction.

Therefore, we can conclude that when water boils in a pan on a hot burner, heat gets to the water mainly by conduction of heat through the pan.

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What does how will u experiment mean in making a science project
Lady_Fox [76]
How are you going to experiment means how will you show your project in a real life situation like a penny being cleaned with different acids.
7 0
3 years ago
Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife​
yuradex [85]

Answer:

\boxed{\text{2408 min}}

Explanation:

The integrated rate law for radioactive decay is

\ln\dfrac{N_{0}}{N_{t}} = kt

1. Calculate the decay constant

\begin{array}{rcl}\ln \dfrac{100}{90} & = & k \times 366\\\\1.054 & = & 366k\\\\k & = & \dfrac{1.054 }{366}\\\\k & = & 2.879 \times 10^{-4} \text{ min}^{-1}\\\end{array}\\\\

2. Calculate the half-life

t_{\frac{1}{2}} = \dfrac{\ln2}{k}\\\\t_{\frac{1}{2}} = \dfrac{\ln2}{2.879 \times 10^{-4} \text{ min}^{-1}} = \text{2408 min}\\\\\text{The half-life for decay is } \boxed{\textbf{2408 min}}

8 0
3 years ago
How many electrons in mole will discharge<br>2g of Copper 2 ions​
Karo-lina-s [1.5K]

Explanation:

96.485 columbs=1 faraday will

deposit 64/2g= 32 g cu ion

therfore it will require

96,485 ×2/32 =? coulombs or 1/16 of

Faraday= 1 / 16 mole of electrons .

7 0
3 years ago
The difference in composition between a weak base and its conjugate acid is
Svetach [21]
A weak Bronsted-Lowry base is a weak proton acceptor, where the proton is in the form of H+, so the conjugate acid formed contains one more H atom and an extra positive charge.
Hope this helps!
3 0
3 years ago
Solid carbon tetrachloride, CCl4(s), is represented by the diagram above. The attractions between the CCl4 molecules that hold t
Ne4ueva [31]

Hi, you've asked an incomplete question. Here's the diagram that completes the question.

Answer:

<u>(B) nonpolar covalent bonds</u>

Explanation:

This structure in the diagram rightly fits the description of a non-covalent bond because there is an equal sharing of electrons of Carbon (C) and Chlorine (Cl).

<em>Remember</em> too that these elements are in their solid-state, hence the CCl4 (carbon tetrachloride) molecules are held strongly together.

7 0
2 years ago
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