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
inn [45]
3 years ago
7

If you were preparing a defined, minimal medium for an aerobic, chemolithotrophic bacterium to grow on, which of the following c

onstituents could not be utilized and would have to be substituted in order for it to synthesize organic molecules?
a. NaCO3
b. NH4SO4
c. K2HPO4/KH2PO4
d. Fe2+ and MgCl2
e. None of the above would have to be substituted.
Chemistry
1 answer:
Eddi Din [679]3 years ago
7 0

Answer:

I believe it's D. FE2+ and MgCl2...

Explanation:

Hope this helps!!

You might be interested in
A stack of 15 pennies is immersed into a 100 mL graduate initially containing 20.6 mL of water. The volume in the graduate cylin
Gekata [30.6K]

Answer: 5.4

Explanation: The Law of Impenetrability says that two objects can't occupy the same space at the same time; therefore, the pennies and the water can't occupy the same space at the same time. Without the pennies the water level read 20.6 mL, dropping in the pennies gives a level of 26.0.

5 0
2 years ago
The recommended daily allowance (RDA) of the trace metal magnesium is 410 mg/daymg/day for males. Express this quantity in μg/da
Ira Lisetskai [31]

Answer:

410mg/day *\frac{1000 ug}{1 mg}

Recommended daily Amount (RDA) of magnesium is  410,000 μg/day.

Explanation:

There are 1000μg in 1 mg and 1000 mg in 1g

1 mg=1000μg

The Recommended daily Amount (RDA) is 410 mg/day of magnesium. Converting 410 mg/day into μg/day

410mg/day *\frac{1000 ug}{1 mg}

It will become 410,000 μg/day

So Recommended daily Amount (RDA) of magnesium is  410,000 μg/day.

4 0
3 years ago
If you are pushing a shopping cart and you start pushing harder , what happens?
olya-2409 [2.1K]
The kinetic energy of the shopping cart increases. This speeds up the energy rate of friction between the wheel and the floor giving off more kinetic energy so the speed rate can increase (depending on how much your pushing it) Hope this helps :)
4 0
3 years ago
Read 2 more answers
How do carbon-12 and carbon-13 differ?
Feliz [49]

Answer:

They have different amounts of neutrons.

They have different mass numbers.

Explanation:

Carbon-12 and carbon-13 are two isotopes of the element carbon. The difference between carbon-12 and carbon-13 is the number of neutrons in each atom. Atoms of both isotopes of carbon contain 6 protons. Atoms of carbon-12 have 6 neutrons, while atoms of carbon-13 contain 7 neutrons. And because the mass number is the sum of protons and neutrons in the nucleus then will be different too. Atoms of carbon-12 have the mass number equal to  12 a.m.u. while atoms of carbon-13  have the mass number equal to 13 a.m.u. .

a.m.u. - atomic mass units

8 0
3 years ago
The reation between sulfur dioxide and oxygen is a dynamic equilibrium. what happens when the pressure of the system is
ZanzabumX [31]

Answer:

In the above reaction, sulfur dioxide and oxygen react together to form sulfur trioxide. This means that an increase in pressure would move the equilibrium to the right and result in more sulfur trioxide being formed. Pressure can only affect the position of equilibrium if there is a change in the total gas volume.

5 0
3 years ago
Other questions:
  • What happens if you drink juice instead of water? reddit?
    9·1 answer
  • How many molecules of water are present in a 5.65 mole sample of water
    10·1 answer
  • What is an atom in chemistry
    7·2 answers
  • Name the two types of sub-atomic particle in the nucleus of an atom.
    9·1 answer
  • Suppose water did not form hydrogen bonds.
    15·2 answers
  • Which condition applies when water boils at 100°c? air pressure equals a specific value (101.3 kpa) air pressure is less than it
    9·2 answers
  • Use the drop-down menus to select the part of Earth best described by each phrase.
    12·2 answers
  • Which reactions are oxidation-reduction reactions? Check all that apply
    10·2 answers
  • In an experiment, equal amounts of water and soil were first heated and then left to cool. The graph shows the change in tempera
    8·2 answers
  • What temperature is absolute zero?<br> OA. 0°C<br> OB. OK<br> O<br> C. 0°F<br> D. O molecules
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!