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lions [1.4K]
3 years ago
5

How does heat get from the stove burner into your soup?

Chemistry
1 answer:
Vladimir [108]3 years ago
3 0

Answer:

hey. I remember learning about this and asking my teacher why the heck would you think about all that instead of just eating the food XD.....

but the Heat from the burner warms the pan by conduction. The liquid soup is warmed by convection currents. ... Metal is a good conductor of heat. Theheat energy moves from the hot liquid through the spoon by conduction.

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The radioactive isotope I-131 is used in
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The answer is D, medical diagnosis
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2 years ago
Is a book sitting high upon a shelf a balanced force or an unbalanced force
Art [367]
Balanced force I think
7 0
3 years ago
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A container with two gases, helium and argon, is 30.0% helium. Calculate the partial pressure of helium and
iVinArrow [24]

Answer:

helium=1,2atm

argon=2,8atm

Explanation:

partial is pressure exerted by each gas in a system since 30% is helium it means 70% is argon

argon =70%x4

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4 0
2 years ago
A sample of a compound contains 32.0 g C and 8.0 g H. Its molar mass is 30.0 g/mol. What is the compound’s molecular formula
Grace [21]
The compound's molecular formula is C2H6. This is obtained by:
  
            mass             moles               divided by smallest moles
C          32g         32/12 = 2.67                                 1
H           8g           8/1.01 = 7.92                        approx. 3

Next, divide both terms by the smallest number of moles, 2.67. This gives 1 and 3. So the empirical formula is CH3 which has a molar mass of 15g/mol. Given the molar mass of the molecular formula as 30g/mole, we can calculate the factor by which to multiply the subscripts of CH3.

X = molar mass of molecular formula / molar mass of empirical formula = 30/15
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So (CH3)2 is C2H6.
3 0
2 years ago
Out of 500 silicon atoms: 460 are si-28, which has a mass of 27.98 amu 25 are si-29, which has a mass of 28.98 amu and 15 are si
liberstina [14]

Answer;

=28.09 amu

Explanation;

In this problem, they did not give us the percentages. However, since we know the number of atoms, we can easily calculate the percentages. For example:  

(460 X 100)/500 = 92%  

If we do this for all three isotopes,

(460 × 25)/500 = 5 %

(460 × 15) /500 = 3%

-We get 92%, 5%, and 3%. (We'll assume these are absolute numbers for determining our significant figures).

Now the problem is just like the previous one. First convert the percentages into decimals. Then multiply those decimals by the masses and add. Here's the solution:  

= (0.92) X (27.98 amu) + (0.05) X (28.98 amu) + (0.03) X (29.97 amu)

= 25.74 amu  +  1.449 amu  + 0.8991 amu

= 28.09 amu

6 0
3 years ago
Read 2 more answers
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