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Alexandra [31]
3 years ago
11

When a person uses an iron to remove the wrinkles from a shirt why does the heat travel from iron to the shirt?

Chemistry
1 answer:
ElenaW [278]3 years ago
8 0

The iron uses heat waves to flatten the shirt. You can also you water to help the process and create steam. The steam will help soften the shirt making it easier to flatten. I am not sure if this is correct but it should help to understand why the shirt gets hot.

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When 167.2 joules of heat is added to 4.00 grams of water at 10c the resulting temperature is what
Katena32 [7]
Q=mc \Delta T \\\\
Q=168,2J\\
m=4g\\
c=4.184\frac{J}{g^{o}C}\\\\
\Delta T=\frac{Q}{mc}=\frac{167,2J}{4g*4,184\frac{J}{g^{o}C}}=9,99^{o}C\\\\
\Delta T = T_{f}-T_{i}\\\\
9,99^{o}C=T_{f}-10^{o}C\\\\
T_{f}=9,99^{o}C+10^{o}C=19,99^{o}C\approx20^{o}C
5 0
3 years ago
Which coefficients will balance the following reaction:
valentina_108 [34]

Answer:

C ) 2, 1, 2

Explanation:

The given reaction is synthesis reaction in which lithium and bromine react to form lithium bromide.

Chemical equation:

Li + Br₂    →    LiBr

Balanced chemical equation:

2Li + Br₂    →    2LiBr

Step 1:

Li + Br₂    →    LiBr

left hand side                         Right hand side

Li = 1                                        Li = 1

Br = 2                                        Br = 1

Step 2:

Li + Br₂    →    2LiBr

left hand side                         Right hand side

Li = 1                                        Li = 2

Br = 2                                        Br = 2

Step 3:

2Li + Br₂    →    2LiBr

left hand side                         Right hand side

Li = 2                                       Li = 2

Br = 2                                        Br = 2

3 0
3 years ago
A long stairway with a metal handrail runs between the houses of Amelia and her friend Michelle. After getting their parents' pe
Ahat [919]

Answer:

D.

because her right ear was closer to Michelle, who was the source of the sound

5 0
3 years ago
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kap26 [50]

Answer:

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4 0
3 years ago
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