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Alexus [3.1K]
2 years ago
6

What does chemical test mean

Chemistry
2 answers:
natta225 [31]2 years ago
8 0
Hope this helps! chemical test is a qualitative or quantitative procedure designed to identify, quantify, or characterise a chemical compound or chemical group. It is used to see if the driver had presence of alcohol or drugs in their system
DENIUS [597]2 years ago
7 0
Lol uhhhhh i don’t know, need points sorry
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Calculate the amount of heat needed to convert 50.0 g of liquid water at to steam at 100ºC.
Kipish [7]

Answer:

We need 113000 J of heat (option 2 is correct)

Explanation:

Step 1: Data given

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Step 2: Calculate the heat needed

Q =m* ΔHVap

⇒with Q = the amount of heat needed = TO BE DETERMINED

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⇒with ΔHVap = 2260 J/g

Q = 50.0 grams * 2260 J

Q = 113000 J

We need 113000 J of heat (option 2 is correct)

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If a 500 gram block of metal absorbs 5,016J of heat when its temperature changes from 20.00 Celsius to 45 Celsius what is the sp
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