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andrew11 [14]
3 years ago
6

Select the correct answer.

Chemistry
2 answers:
WINSTONCH [101]3 years ago
7 0
A because I just took that test
Crazy boy [7]3 years ago
4 0

Answer:

A. Butane

Explanation:

"Butane is a gas above -0.5°C, but when slightly pressurized, forms a liquid. In this form, it is used in cigarette lighters and lighter sticks."

Hope this helps!

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LUCKY_DIMON [66]

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5.1 - 2.3685 = 2.7315 \\

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Help me, please. I Don't get my homework.
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Murljashka [212]

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72.3 c

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How many calories is required to change the temperature of 2.18g of water from 15.3°C to 69.5°C. The specific heat of liquid wat
lozanna [386]

The number  of calories that are  required  to change the temperature  of 2.18 g of water from 15.3 c to 69.5 c is  <u>118.16 cal</u>


    <u><em> calculation</em></u>

  •    Heat in calories  = MCΔ T where,
  • M(mass)= 2.18 g
  • C(specific heat capacity)= 1.00 cal/g/c
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7 0
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Which of the following statements is a qualitative observation? A.The branch is three meters long. B.The substance tastes bitter
notka56 [123]

There are two kinds of analysis: qualitative and quantitative

In quantitative we analyse the amount of something that is how much of something is present / the quantity. Ex: the length of branch of tree, number of students in class, volume of a liquid in a beaker.

In qualitative analysis we determine the kind of substance / quality of substance / nature of substance.

like: colour of a substance, odor of a substance or taste (bitter / sour / sweet etc) of a substance

So answer is : B.The substance tastes bitter

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