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
il63 [147K]
2 years ago
7

Plants such as _______________ provided much nitrogen to the soil.

Chemistry
1 answer:
Allushta [10]2 years ago
6 0

Answer:

Abiotic

Explanation:

Its because it includes water, sunlight, tempature and soil

You might be interested in
How many grams of water are made from the reaction of 16.0 grams of o2? given the reaction: 2h2 o2 --> 2h2o
Jlenok [28]

Answer:

18.0 g H₂O

Explanation:

To find the mass of water (H₂O), you need to (1) convert grams O₂ to moles O₂ (via the molar mass), then (2) convert moles O₂ to moles H₂O (via mole-to-mole ratio from equation coefficients), and then (3) convert moles H₂O to grams H₂O (via the molar mass). It is important to arrange the conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value.

Molar Mass (O₂): 2(15.998 g/mol)

Molar Mass (O₂): 31.996 g/mol

Molar Mass (H₂O): 2(1.008 g/mol) + 15.998 g/mol

Molar Mass (H₂O): 18.014 g/mol

2 H₂ + 1 O₂ -----> 2 H₂O

16.0 g O₂          1 mole            2 moles H₂O         18.014 g
---------------  x  ----------------  x  ---------------------  x  -----------------  = 18.0 g H₂O
                        31.996 g             1 mole O₂             1 mole

6 0
2 years ago
What happens when nitrogen fills its valence shell?
Sauron [17]
The right answer is D. three electrons are gained, creating N-3

Nitrogen has 5 electrons in it's valence shell and octet rule states that the valence shell must have 8 electrons. To satisfy that, Nitrogen gains 3 electrons that are negatively charged.Therefore, it gets a negative charge.




5 0
3 years ago
Read 2 more answers
Why gold is called inert metal​
astraxan [27]

Gold has a heavy enough nucleus that its electrons must travel at speeds nearing the speed of light to prevent them from falling into the nucleus. This relativistic effect applies to those orbitals that have appreciable density at the nucleus, such as s and p orbitals. These relativistic electrons gain mass and as a consequence, their orbits contract. As these s and (to some degree) p orbits are contracted, the other electrons in d and f orbitals are better screened from the nucleus and their orbitals actually expand.

Since the 6s orbital with one electron is contracted, this electron is more tightly bound to the nucleus and less available for bonding with other atoms. The 4f and 5d orbitals expand, but can't be involved in bond formation since they are completely filled. This is why gold is relatively unreactive.

Hope it helps

5 0
2 years ago
2. Name each of the following ionic compounds A. K2O B. Cacl2. C. Mg3N2 D. NaCIO E. KNO3​
Ludmilka [50]
A. Potassium oxide
B. Calcium chloride
C. Magnesium nitride
D. Sodium hypochlorite
E. Potassium nitrate
3 0
3 years ago
What is the scientific method?
ohaa [14]
C. a scientific approach to answering questions
6 0
3 years ago
Read 2 more answers
Other questions:
  • How much energy is lost through carrying out life functions?
    15·1 answer
  • Scientific knowledge can withstand the test of time because A. exceptions can be made regarding scientific laws. B. it is open t
    9·2 answers
  • What's the formula unit for magnesium and sulfur?
    11·2 answers
  • What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filli
    7·2 answers
  • What is the pH of a pure 0.5L batter acid from the PhET simulation?
    5·1 answer
  • An aqueous solution of calcium hydroxide is standardized by titration with a 0.183 M solution of hydrochloric acid. If 16.6 mL o
    8·2 answers
  • 0.89 m =___________mg?​
    12·1 answer
  • ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
    7·1 answer
  • A student titrates an unknown amount of potassium hydrogen phthalate (KHC8H4O4, abbreviated as KHP) with 21.30 mL of a 0.1161 M
    7·1 answer
  • Runoff from agricultural land carries chemicals from fertilizers that collect in a lake. The buildup of chemicals can eventually
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!