How do you know if a chemical change has taken place?

1 answer:

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There are a few ways to tell if a reaction has taken place, these include temperature change, color change, formation of a precipitate, bubbling, and even odors. These all indicate that a chemical change has taken place.

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Mg (s) + 2 HCl (aq) --> MgCl2 (aq) + H2 (g)

MrMuchimi

Answer:

2Mg + 4HCl (aq) --> 2 MgCl2 (aq) + H2

Explanation:

balanced...

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2 years ago

Which technology is used to deal with waste management?

Alisiya [41]

<span>D) recycling ;)

Waste Management's Aerobic-Anaerobic Bioreactor* is designed to accelerate waste degradation by combining attributes of the aerobic and anaerobic bioreactors. The objective of the sequential aerobic-anaerobic treatment is to cause the rapid biodegradation of food and other easily degradable waste in the aerobic stage in order to reduce the production of organic acids in the anaerobic stage resulting in the earlier onset of methanogenesis. In this system the uppermost lift or layer of waste is aerated, while the lift immediately below it receives liquids. Landfill gas is extracted from each lift below the lift receiving liquids. Horizontal wells that are installed in each lift during landfill construction are used convey the air, liquids, and landfill gas. The principle advantage of the hybrid approach is that it combines the operational simplicity of the anaerobic process with the treatment efficiency of the aerobic process. Added benefits include an expanded potential for destruction of volatile organic compounds in the waste mass. (*US Patent 6,283,676 B1)</span>

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2 years ago

Soil particles tend to be __________ charged and attract __________ charged ions.

aliina [53]

Answer:it’s abc it’s just science you know

Explanation:

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3 years ago

After eating, nutrients must be oved to other parts of the body. Which of the following systems will transport these nutrients.

V125BC [204]

The circulatory system

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