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IrinaVladis [17]
3 years ago
5

Which sign is NOT for a chemical change? Color change or Change in volume or

Biology
2 answers:
BaLLatris [955]3 years ago
6 0

The answer would be change in volume.

luda_lava [24]3 years ago
5 0
Color change is the answer because that is a physical change
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Acetic acid and ethanol react to form ethyl acetate and water, like this: (aq)(aq)(aq)(l) Imagine of are removed from a flask co
ehidna [41]

Answer:

Greater than zero, and equal to the rate of the reverse reaction

Explanation:

this is an incomplete question in the first place, i saw the complete format online hence the answer am giving here.

Before any C2H5CO2CH3 is or was removed, the system is said to be in equilibrium.

This means that the rate of consumption of reactants and rate of generation of products are greater than zero and are equal, that means that both the forward and backward reactions are occurs at these rate.

7 0
3 years ago
1. List 2 interactions between the earth spheres and the water cycle.
Harrizon [31]

Answer:

The carbon cycle, as the nitrogen cycle, occurs in all the spheres: Biosphere, Atmosphere, Geosphere and Hydrosphere.

Explanation:

Most Earth events involve interaction between multiple spheres. For example, rain is the movement of water (the hydrosphere) from the atmosphere to the lithosphere where it collects in lakes, rivers, or streams. Water is an important resource for inhabitants of the biosphere.

The Atmosphere-contains all the air in Earth's system. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. This sphere is also where weather occurs.

The nitrogen cycle occurs in all the spheres and ecosystems. It passes through rocks, water, atmosphere, plants, etc.

In atmosphere and biosphere: Nitrogen is about 78% of the gases in the atmosphere an it’s a essential component of the living organisms. It enters plants through the microorganisms that convert this nitrogen into ammonia. After this conversion, the plants absorb this substance. It can pass to animals when they eat these plants. Then, when they urinate, bacteria convert ammonia to nitrogen again and it returns to the atmosphere.

Sources:

https://earthsphereslife.wordpress.com/2020/03/31/nitrogen-cycle/https://earthsphereslife.wordpress.com/2020/04/01/carbon-cycle-in-all-the-spheres/

4 0
2 years ago
How many unique ip addresses could be made in a fixed length ip address system using 6 bits?
MrRissso [65]
Sixty-four (64) unique IP addresses could be made in a fixed length IP address system using 6 bits. 
The IP address is a number assigned to any item that is connected to the internet. IP stands for Internet Protocol, it's function to work over a dynamic network. It is composed of two parts, it uniquely identifies a specific interface on the network.
4 0
3 years ago
In your laboratory, you examine a vial of freshwater from a local pond. You notice several unfamiliar small (less than 1 millime
goblinko [34]

Answer:

First, we will see its body structure and collect more information about it. Second , we will see the mode of reproduction i. e. sexually or asexually.

Explanation:

We will observe structure of the body and cell. If this organism is eukaryotic and no cell wall so we can say that it belongs to kingdom animalia. We also observed its mode of reproduction i. e. sexual reproduction or asexual reproduction such as fragmentation, binary fission etc.

7 0
3 years ago
The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Which enzyme is likely
bixtya [17]

Pepsinogen, an inactive zymogen, is secreted into gastric juice from both mucous cells and chief cells. Once secreted, pepsinogen is activated by stomach acid into the active protease pepsin, which is largely responsible for the stomach's ability to initiate digestion of proteins.

3 0
3 years ago
Read 2 more answers
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