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
Savatey [412]
3 years ago
9

HELP MEEEEEEEEEEEEE!!!!!! ( the last one is bacteria )​

Chemistry
1 answer:
Sidana [21]3 years ago
4 0

Answer:

Last bacteria is nerve cells

You might be interested in
A 300-gallon anaerobic digester will be loaded daily with a feedstock that contains two parts dairy manure and one-part water by
Mars2501 [29]

Answer:

The volume of feedstock needed to mantain an organic load rate of 2 kgVS/day is 0.055 m3/day of feedstock.

The HRT is 20.6 days.

Explanation:

First, we calculate how many kg is 1 m3 of feedstock. We know the density, so we can calculate the mass:

M=\rho*V=37.5\frac{lb}{ft^3}*1m^3*(\frac{3.281ft}{1m})  ^3=1324.5lb=600.7 kg

If the VS are 6% in weight,

M_{vs}=0.06*M=0.06*600.7\,kg/m^3=36,0kgVS/m3

The volume per day needed to feed 2 kg of VS/day is:

V=\frac{2kg}{36kg/m^3}= 0.055m3/day=5.5litres/day

The HRT depends on the volume of the tank and the flow. Its equation is

HRT=\frac{V}{Q}=\frac{300gal}{0.055 m^3/day}*\frac{1m^3}{264.172gal}\\   \\HRT=20.6\,days

6 0
3 years ago
Copper was the first metal to be produced from its ore because it is the easiest to smelt, that is, to refine by heating in the
Ganezh [65]

Answer:

57.48%

Explanation:

Calculate the mass of 1 mole of malachite:

MM Cu = 63.55

MM O = 16.00

MM H = 1.01

MM C = 12.01

(Cu_{2}(OH)_{2}CO_{3})

A mole of malachite has:

2 moles of Cu

5 moles of O

2 moles of H

1 mole of C

MW Malachite = 2*MM(CU) + 5*MM(O) + 2*MM(H) + 1 *MM(C)

MW Malachite = 2*63.55 + 5*16.00 + 2*1.01 + 1*12.01

MW Malachite = 221.13

Mass of Cu in a mole of Malachite = 2*MM(CU) = 127.1

Now divide the mass of Cu by the mass of Malachite

%Cu = \frac{127.1}{221.13} =0.5748=57.48%

7 0
4 years ago
Ratio of nitrogen gas to helium
GarryVolchara [31]

Answer:

1 to 696

The expansion ratio of liquefied and cryogenic from the boiling point to ambient is: nitrogen 1 to 696. liquid helium 1 to 757. argon 1 to 847.

Explanation:

4 0
3 years ago
Molecules that are optically active due to the tetrahedral arrangement of bonds around the carbon atom are often referred to as
morpeh [17]
<span>Answer:
             Molecules that are optically active due to the tetrahedral arrangement of bonds around the carbon atom are often referred to as <u>Chiral Molecules</u>.

Explanation:
                   Chiral molecules have stereogenic centers. When plane polarized light is fall on these compounds they rotate the light either in clockwise or anti clockwise direction. The mirror images of chiral moleculecules are non-superimposable.  Below few examples for molecules containing chiral centers are given.</span>

6 0
3 years ago
True Or False: A law is a proven fact.
antiseptic1488 [7]

Answer:

True

Explanation:

It only becomes a law when someone has proved it, or else it's just a theory.

8 0
3 years ago
Other questions:
  • Please help!!
    5·2 answers
  • Balance this equation. If a coefficient of "1" is required, choose "blank" for that box.
    10·2 answers
  • Someone pleasseeeee help me
    7·1 answer
  • How many molecules are there in 79g of Fe2O3? how many atoms is thi
    8·1 answer
  • The equation for the formation of water from hydrogen gas and oxygen gas is 2H2 +
    6·1 answer
  • Where does most of the mass of an atom exist?
    15·1 answer
  • What did the Cherokee do to assimilate?
    15·2 answers
  • 20g of water at 30°C was mixed with 40g of water at 75°C. What is
    14·1 answer
  • Write a conclusion statement that addresses the following questions:
    5·1 answer
  • What is known about a reaction with a positive enthalpy?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!