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qwelly [4]
3 years ago
6

Need help 1-2 and 3-5

Chemistry
1 answer:
Galina-37 [17]3 years ago
4 0
One minus two equals negative one and three minus five equals negative two
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C(s)+H2(g)-> C2H6(g)
disa [49]

Explanation:

2 C(s) + 3 H2(g) = C2H6(g)

5 0
3 years ago
Identify each of the following as an example of either basic research, applied research, or
zvonat [6]

Answer:

A) a new type of refrigerant that is less damaging to the environment is developed.  Applied development

B) a new element is synthesized in a particle accelerator.  Basic development.

C) a computer is redesigned to increase the speed of the computer. Technological development.

Explanation:

8 0
3 years ago
A 250 gram sample of water at the boiling point had 45.0 kj of heat added. how many grams of water were vaporized? heat of vapor
Julli [10]
You have 45 kJ of heat added and for every 40.6 kJ added, one mole is able to be vaporized. Find how many moles you can vaporize.

45 kJ / 40.6 kJ = 1.1 moles

Water is roughly 18 g per mole so 1.1 moles x 18 g per mol = 19.95 grams vaporized

Hope I helped!


7 0
4 years ago
What is the cost of carbon in gram
Morgarella [4.7K]
Carbon is 12 grams per mole
6 0
3 years ago
What organism is penicillin derived from ?
Anit [1.1K]

Answer: Penicillin G (also called benzylpenicillin) was discovered by accident in 1928. Alexander Fleming, a Scottish physician-scientist was growing a type of bacteria called Staphylococcus Aureus on an uncovered petri dish when it became contaminated with mold spores.

Explanation:

4 0
4 years ago
Read 2 more answers
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