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3 years ago

Which of the following is an example of a double replacement reaction?

2 answers:

3 0

B because you can see the elements being swapped by the other elements on both sides of the equation, please mark me as Brainlliest

Nataly [62]3 years ago

3 0

Answer:B

Explanation:please like this bc I just did it and got it right

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2 years ago

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3 years ago

What is the change in length of a 1400. m steel, (12x10^-6)/(C0) , pipe for a temperature change of 250.0 degrees Celsius? Remem

8090 [49]

Answer:

$\Delta L = 4.2 m$

Explanation:

As per the formula of thermal expansion we know that

$L = L_o(1 + \alpha\Delta T)$

so here we will have

$L_o = 1400 m$

$\alpha = 12 \times 10^{-6} per ^oC$

$\Delta T = 250 degree C$

so here change in the length of the rod is given as

$\Delta L = L - L_o$

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$\Delta L = 1400 (12 \times 10^{-6})(250)$

$\Delta L = 4.2 m$

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3 years ago