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
Readme [11.4K]
3 years ago
15

How is "food" produced in ecosystems without sunlight?

Chemistry
2 answers:
NeX [460]3 years ago
5 0

Answer:

A Chemosynthesis

Explanation:

lisabon 2012 [21]3 years ago
4 0
The answer would be A. By chemosynthesis
You might be interested in
What would make bromide salt insoluble in water?
anzhelika [568]
Its doesn't dissolve in water! 
3 0
3 years ago
Based on the equation, how many grams of Br2 are required to react completely with 36.2 grams of AlCl3?
s2008m [1.1K]

Answer:

65.08 g.

Explanation:

  • For the reaction, the balanced equation is:

<em>2AlCl₃ + 3Br₂ → 2AlBr₃ + 3Cl₂,</em>

2.0 mole of AlCl₃ reacts with 3.0 mole of Br₂ to produce 2.0 mole of AlBr₃ and 3.0 mole of Cl₂.

  • Firstly, we need to calculate the no. of moles of 36.2 grams of AlCl₃:

<em>n = mass/molar mass</em> = (36.2 g)/(133.34 g/mol) = <em>0.2715 mol.</em>

<u><em>Using cross multiplication:</em></u>

2.0 mole of AlCl₃ reacts with → 3.0 mole of Br₂, from the stichiometry.

0.2715 mol of AlCl₃ reacts with → ??? mole of Br₂.

∴ The no. of moles of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃  = (0.2715 mol)(3.0 mole)/(2.0 mole) = 0.4072 mol.

<em>∴ The mass of Br₂ reacts completely with 0.2715 mol (36.2 g) of AlCl₃ = no. of moles of Br₂ x molar mass</em> = (0.4072 mol)(159.808 g/mol ) = <em>65.08 g.</em>

4 0
3 years ago
What describes Rutherford’s model of the atom?
HACTEHA [7]
Rutherford's model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. ... It was after this that Rutherford began developing his model of the atom.
8 0
3 years ago
What volume of a 0.100 M AgNO3 solution is required to completely react with the CaCl2 in 3.00 L of a 0.100 M CaCl2 solution? Th
Andreyy89

Answer:

6.00 LAgNO3

Explanation:

Got it right on Edge. :)

5 0
3 years ago
Read 2 more answers
D.new
Lapatulllka [165]
I think the answer is B
4 0
3 years ago
Other questions:
  • Sodium hydrogen carbonate , also known as sodium bicarbonate or "baking soda", can be used to relieve acid indigestion. Acid ind
    5·1 answer
  • An electric current of 1.00 ampere is passed through an aqueous solution of Ni(NO3)2. How long will it take to plate out exactly
    11·2 answers
  • The sugar deoxyribose is an important component of DNA. Deoxyribose is 44.8% 7.5% H, and 47.7% O by mass. What is the empirical
    5·1 answer
  • 2. Moving down any group of the periodic table... (highlight the answer)
    7·1 answer
  • Features passed from parent to offspring, such as eye color, is an example of what?
    15·1 answer
  • What is the percent composition of beryllium (Be) and oxide (O) in BeO? Round
    6·1 answer
  • How many moles are in 24.3g of iron (II) oxide?
    11·1 answer
  • Column A. (4pts/.5 pts each) Order the layers from youngest to oldest. Write the letter for each layer in the correct order in t
    8·1 answer
  • Defination of dative covalent bond
    6·2 answers
  • All elements have a AHf, of ___
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!