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Anettt [7]
4 years ago
6

What salivary glands are responsible for the beginning of the digestion of food?

Chemistry
1 answer:
Komok [63]4 years ago
8 0
I think this what you're looking for http://www.webmd.com/oral-health/salivary-glands
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Why is 1/t used as a measure of rate of reaction?​
Tpy6a [65]

Answer:

1/t means that the order of reaction is a first order. Meaning that the rate of reaction is directly proportional to reactant concentration. Scientists work with the standard units, therefore 1/t is 1 divide by 1 second.

Explanation:

6 0
3 years ago
HELPPPP PLZ
DerKrebs [107]
I believe it is the scientific definition of work, as work = force x distance
6 0
3 years ago
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A 4.215 g sample of a compound containing only carbon, hydrogen, and oxygen is burned in an excess of oxygen gas, producing 9.58
Scilla [17]

Answer:

\% O=27.6\%

Explanation:

Hello,

In this case, for the sample of the given compound, we can compute the moles of each atom (carbon, hydrogen and oxygen) that is present in the sample as shown below:

- Moles of carbon are contained in the 9.582 grams of carbon dioxide:

n_C=9.582gCO_2*\frac{1molCO_2}{44gCO_2}*\frac{1molC}{1molCO_2}  =0.218molC

- Moles of hydrogen are contained in the 3.922 grams of water:

n_H=3.922gH_2O*\frac{1molH_2O}{18gH_2O} *\frac{2molH}{1molH_2O} =0.436molH

- Mass of oxygen is computed by subtracting both the mass of carbon and hydrogen in carbon dioxide and water respectively from the initial sample:

m_O=4.215g-0.218molC*\frac{12gC}{1molC} -0.436molH*\frac{1gH}{1molH} =1.163gO

Finally, we compute the percent by mass of oxygen:

\% O=\frac{1.163g}{4.215g}*100\% \\\\\% O=27.6\%

Regards.

5 0
4 years ago
connection between fossil fuels, CO2, greenhouse effect and climate change? must include all 4 in answer please
natima [27]

The fossil fuels, CO2, greenhouse effect, and climate change are all things that are connected with each other and contribute for each successive one to occur. The fossil fuels are heavily used by the humans. Through their burning, the fossil fuels release lot of CO2 into the atmosphere. The CO2 is the most common greenhouse gas, thus it is a gas that manages to trap the heat into the atmosphere. So as the CO2 from the burning of the fossil fuels increases in the atmosphere, the greenhouse effect also increases. The greenhouse effect is the one that manages to keep the Earth warm, which is good, but it can also pass the limit and make the whole planet much warmer, resulting in rise of the sea levels because of the melting of the ice caps and glaciers. That will cause significant climate changes all over the globe because the sea currents will change, the atmosphere will keep more heat, and the water surface will increase.

8 0
3 years ago
Which is the process by which atoms are joined to form compounds? A. photosynthesis B. metamorphosis C. physical bonding D. chem
lina2011 [118]

The answer to your question would be D) chemical bonding because when you are bonding atoms to each other you are creating a new and unique substance

5 0
3 years ago
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