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Anna35 [415]
3 years ago
13

1. The number of letters received in the mail over the past week is recorded.

Mathematics
1 answer:
gregori [183]3 years ago
6 0

Answer:

nose mijito pide ayuda a tus family

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PLEASE SOMEONE HELP ME I NEED HELP WITH THIS QUESTION
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54%

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2 years ago
You are trying to heat up a cup of water with a butane lighter.
algol13

Answer:

Step-by-step explanation:

Remark

The formula for this is

Heat = m * c * Δt

Givens

Heat = unknown

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c = 4.184 Joules / grams oC

Δt = the change in temperature = 35.7 - 22.3 = 13.4

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It's hard to get the correct number of sig digs because the 200 is not qualified in any way.

Part 2.

This can really puzzle you until you know that heat given up = the heat taken on. The heat taken on was 11.2 Kj. The Butane lighter must have given that heat on.

Heat of Combustion = Heat Given Up / Number grams burned.

Heat of Combustion = 11.2 Kj / 0.23 grams

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2 years ago
MATH-IXL , Look at the picture below to answer CORRECTLY.
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