1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sergiy2304 [10]
3 years ago
13

What examples does - Making Materials - Moving Materials - Removing Waste

Chemistry
1 answer:
Sidana [21]3 years ago
7 0

Answer:

You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Recall that carbon dioxide travels through the blood and is transferred to the lungs where it is exhaled

Moving Materials include aluminum foil tape, shipping tape, box tape and duct tape. Moving labels take the guesswork out of the moving process.

You might be interested in
he number-average molecular weight of a polypropylene is 1,000,000 g/mol. Compute the degree of polymerization.
m_a_m_a [10]

Answer:

The answer is "23765.4"

Explanation:

Motor weight average number (\bar{M_n}) = 1000000 \frac{g}{mol}

Poly condensation degree dependent on the average number of molecular weights is as follows:

DP_n = \frac{\text{Mol.Wt Number Medium}}{\text{Monomer Unit Mol.Wt}}

All monomer module, in this case, is propylene  

Sunrise. Unit Wt = Mol. Propylene weight

                           = \ Mol. \ Wt \ of \ C_3H_6\\\\= 3 \times 12.01 +6 \times 1.008 \ \ \frac{g}{mol}\\\\= 42.078 \frac{g}{mol}\\\\

DP_n = \frac{1000000}{42.078}\\\\

    =23765.4

8 0
3 years ago
Why have we not drilled or mined deeper into earth ??
alexdok [17]
<span>Scientists have determined that the center of the earth is 6371 km below the surface. But how has this been determined? Many people might answer that question by saying scientists can drill into the Earth with machines. However, the drilling rigs that scientists use can only drill about 20 km in the Earth which is not very deep! In other words, we can only drill into upper part of the crust of the earth. Extremely high temperatures and pressures within the Earth make drilling into it very difficult</span>
8 0
3 years ago
How many grams are in 23.6 molecules of water?
Akimi4 [234]

Answer:

7.06 g H2O

Explanation:

23.6 molec H2O x \frac{1 mol H2O}{6.022(10^{23}) } x \frac{18.02 g H2O}{1 mol H2O}= 7.06 g H2O

4 0
4 years ago
You have a solution of water and pure ethanol. The boiling point of water is 100 degrees Celsius and the boiling point of pure e
trapecia [35]

Answer:

Distillation

Explanation:

A solution of water and ethanol are miscible. Hence, they can only be separated by a process known as distillation. Distillation is the process in which two or more constituents in a mixture are separated based on there difference in boiling points. <u>The mixture is subjected to high heat and the one with the least boiling point distills/evaporates out first followed by the next least boiling point</u>.

<u>From the explanation above, it can be deduced that ethanol (with boiling point of 78°) will be distilled out while water remains in the boiling tube or container</u>.

8 0
3 years ago
Phosphorous is prepared according to the following equation: Ca3(PO4)2 + 3SiO2 + 5C = 3CaSiO3 +5CO + 2P
ivann1987 [24]

Answer:

48546.7kg or 48546745g

Explanation:

so from this u can work out the amount of moles in phosphorous by doing mass / mr you have to convert the mass in kg to g so you times it by 1000. then divide it by 31 which is the mr of phosphorous. then u can use the molar ratio which is 2:1 . Then use the equation mass= moles*mr

so 97000*1000/31=312903moles

2:1

so 312903/2=156451 moles of ca3(PO4)2

so mass= moles*mr

156451*310.3=48494g

hope this helps u to understand(*°▽°*)

6 0
3 years ago
Other questions:
  • 49 grams of sulfuric acid, H2SO4, is dissolved in 1 liter of solution. Determine the molarity (M).
    14·1 answer
  • Which property of potential energy distinguishes it from kinetic energy
    14·1 answer
  • What are they h-bond water acceptors in fentanyl, and is it souluable in water? Explain why or why not.
    13·1 answer
  • The ions Cr3+ and O2- combine to form the ionic chromium oxide. in what proportions do these ions combine to produce a neutral c
    10·1 answer
  • What are the non-living components of an ecosystem? The non-living components of an ecosystem are factors.
    9·2 answers
  • A student finds a puddle of water in a garden and takes a sample he wants to perform an experiment to determine if they are livi
    6·1 answer
  • Write a letter to your friend describing your feelings after you left the school
    11·1 answer
  • What is the concentration of a solution which is 2g in 150cm3 in g/dm3
    10·1 answer
  • Identify the missing particle in the following nuclear equation.
    6·1 answer
  • Calculate the answer. Express it in scientific notation. All answers should have the correct number of significant figures.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!