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
viva [34]
3 years ago
8

Which of the following would be considered renewable resources? You may choose more than one.

Chemistry
2 answers:
vesna_86 [32]3 years ago
5 0

Answer:

clean air

Explanation:

nadezda [96]3 years ago
3 0
Someone already answer but clean air
You might be interested in
Does anyone know how to do this? the solubility of barium carbonate, BaCO3, is 0.0100 g/L. Its molar mass is 197.3 g/mol. What i
g100num [7]
It's simple, just follow my steps.

1º - in 1 L we have 0.0100~g of BaCO_3

2º - let's find the number of moles.

\eta=\frac{m}{MM}

\eta=\frac{0.0100}{197.3}

\boxed{\boxed{\eta=5.07\times10^{-5}~mol}}

3º - The concentration will be

C=5.07\times10^{-5}~mol/L

But we have this reaction

BaCO_3\rightleftharpoons Ba^{2+}+CO_3^{2-}

This concentration will be the concentration of Ba^{2+}~~and~~CO_3^{2-}

K_{sp}=\frac{[Ba^{2+}][CO_3^{2-}]}{[BaCO_3]}

considering [BaCO_3]=1~mol/L

K_{sp}=[Ba^{2+}][CO_3^{2-}]

and

[Ba^{2+}]=[CO_3^{2-}]=5.07\times10^{-5}~mol/L

We can replace it

K_{sp}=(5.07\times10^{-5})*(5.07\times10^{-5})

K_{sp}\approx25.70\times10^{-10}

Therefore the K_{sp} is:

\boxed{\boxed{\boxed{K_{sp}\approx2.57\times10^{-11}}}}
4 0
3 years ago
Read 2 more answers
A substance composed of two or more elements in a fixed, definite proportion is.
Arisa [49]

Answer:

Compound

Explanation:

-compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds.

7 0
2 years ago
Read 2 more answers
2. How have fossils been preserved over millions of years?
just olya [345]

Answer:A fossil is the remains or traces of a once-living plant or animal that was preserved in rock or other material before the beginning of recorded history. ... Fossils of single-celled organisms have been recovered from rocks as old as 3.5 billion years. Animal fossils first appear in rocks dating back about 1 billion years.

Explanation:

8 0
3 years ago
Read 2 more answers
Medicationswith names ending in ER,CR,XR,and SR indicate they are __ medications a: extended or controlled release b: oral c: ch
DanielleElmas [232]

Answer: a: extended or controlled release

Explanation:

7 0
3 years ago
True or False, Valence electrons do NOT determine the chemical
serious [3.7K]

         Yes <u><em>true</em></u>

I can't come up with a good explanation.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Technically speaking, in terms of chemistry and physics, steam is visible and can be seen.
    12·2 answers
  • Using the following thermochemical data, what is the change in enthalpy for the following reaction? Ca(OH)2(aq) + HCl(aq) CaCl2(
    11·1 answer
  • How many valence electrons does a neutral atom of silicon have??
    9·1 answer
  • What is the meaning of barren in this sentence?
    10·2 answers
  • 14. In groups, students create dioramas to depict different ecosystems and their physical characteristics. One of the dioramas i
    9·1 answer
  • Which process is a chemical change? burning a match boiling water melting ice breaking glass
    6·2 answers
  • 1.36x10^22molecules Fe2O3 to grams
    14·1 answer
  • 5. A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and diluted to 500.00mL in a volum
    15·1 answer
  • The country like Nepal with diversity must have competition and cooperation <br>justify​
    13·1 answer
  • Calculate the [H3O+] for orange juice, which has a [OH–] = 5.0 × 10–11 M.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!