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Karo-lina-s [1.5K]
2 years ago
9

Calculate the joules of heat needed to cool 159 g of water at 100 c to water at 65c

Chemistry
1 answer:
Butoxors [25]2 years ago
4 0

Answer:

John is buying shirts for his softball team.  He will pay a one-time processing fee of $27.50 and $12.75 per each shirt ordered.  Which equation can be used to find y, the total cost to buy xshirts? John is buying shirts for his softball team.  He will pay a one-time processing fee of $27.50 and $12John is buying shirts for his softball team.  He will pay a one-time processing fee of $27.50 and $12.75 per each shirt ordered.  Which equation can be used to find y, the total cost to buy xshirts? xdsz.75 per each shirt ordered.  Which equation can be used to find y, the total cost to buy xshirts? John is buying shirts for his softball team.  He will pay a one-time processing fee of $27.50 and $12.75 per each shirt ordered.  Which equation can be used to find y, the total cost to buy xshirts? John is buying shirts for his softball team.  He will pay a one-time processing fee of $27.50 and $12.75 per each shirt ordered.  Which equation can be used to find y, the total cost to buy xshirts?

Explanation:

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Explain the importance of atomic number in every element​
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Explanation:

The atomic number tells us important information: The number of protons, the positive charge, the number of electrons, the negative charge, and the typical behavior of the element based on the electron configuration

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2 years ago
A decrease in the population of decomposers can cause a decrease in carbon dioxide in the air (abiotic matter) of the biodome. T
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Answer:

The answer is false, because in order to decompose organic matter, decomposers take CO2 from the environment and thus generate organic decomposition.

This sentence can be misinterpreted and be confused since the explanation explains the method of CO2 release from the decomposers, but in a non-polluting way.

Explanation:

Decomposing organisms are responsible for an increase in CO2 since they transform the complex molecules of organic matter into simple inorganic compounds such as carbon dioxide, water and mineral sales that return to the substrate to be used as nutrients by producers.

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3 years ago
which is a greater threat to a mountain ecosystem: a beetle that kills coniferous trees or a wolf thats hunts and eats deer?
Ipatiy [6.2K]

Answer:

Explanation:

The mountain ecosystems are characterized by coniferous tree species such as pinus, firs, and spruces and species such as deers, bears, and wolves.

A beetle that kills coniferous trees would be a greater threat to the ecosystem than a wolf that hunts and eat deer because the dominant trees in the ecosystem are conifers. Hence, <u>a beetle that kills coniferous trees might end up killing the dominant tree species in the ecosystem and this will gravely affect other plant and animal species within the ecosystem. </u>

<em>Wolves and deers have their niche in the mountain ecosystem already and hence, their populations are naturally limited by limiting factors of the environment. Hence, a wolf that hunts and eats deers would be of a lesser threat to the mountain ecosystem.</em>

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Answer:

Each element has unique physical properties such as density, melting point, boiling point, etc. These properties can be used to identify an element using a reference book that contains such information about each element. Flame tests, atomic spectra, and spectroscopy can be used to identify some elements.

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3 years ago
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