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deff fn [24]
3 years ago
5

What is an element?

Chemistry
2 answers:
s2008m [1.1K]3 years ago
5 0
D -a substance made of more than one type of atom
Llana [10]3 years ago
3 0

Answer:

b. a substance made of only one type of atom

Explanation:

Elements are what you find on the periodic table of elements.

Take oxygen, for example. You can have one or multiple atoms, but if they are all oxygen atoms it's an element.

"a" is incorrect because water is not an element, it is a compound.

"c" is incorrect because such a thing (as far as we know) does not exist, unless we are talking about subatomic particles like protons, neutrons, and electrons that make up an atom.

"d" is incorrect because it describes a compound.

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Given teh equation adn the heat of reaction, reaction 2's heat of reaction can be obtained by simply multiplying teh heat of reaction of 1 by 3. The final answer is -6129 kJ. 
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Which of the following statements about the greenhouse effect is false? Greenhouse gases include carbon dioxide, chlorofluorocar
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How is electrolysis most commonly used to produce an energy source?
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580 grams of boiling water (temperature 100°C, specific heat capacity 4.2 J/K/gram) are poured into an aluminum pan whose mass i
fenix001 [56]

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81.04°C

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H = MCΔT

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H = 810 T2 - 19440

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263040 = 3246 T2

T2 = 81.04°C

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Assume that energy diffuses throughout the pan and water so that all parts reach the same final temperature.

3 0
3 years ago
How can we tell the distance sediments traveled due to erosion ?​
meriva

Answer:

more rounded the grains are the more they have been moved around

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geolsoc.org.uk

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