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
Zielflug [23.3K]
3 years ago
8

At the end of 2012, global population was about 7.0 billion people. What mass of glucose in kg would be needed to provide 1200 c

al/person/day of nourishment to the global population for one year? Assume that glucose is metabolized entirely to CO₂(g) and H₂O(l) according to the following thermo-chemical equation: C₆H₁₂O₆(s)+6O₂(g)⟶6CO₂(g)+6H₂O(l); ΔH₀ = −2803kJ

Chemistry
1 answer:
kari74 [83]3 years ago
8 0

Answer:

8.2271 x 10^9 kg

Explanation:

You might be interested in
What are the types of Asexual reproduction? <br><br> need this asap bro uyftghjkddfs
kolezko [41]

Answer:

The types of Asexual reproduction include:  fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis.

5 0
2 years ago
Select the conjugate acid-base pair(s). a) HI, I b) HCHO2, SO4^2- c) CO3^2-, HCI d) PO4^3-, HPO4^2-
Semenov [28]

Answer:

d) PO4^3-, HPO4^2-

Explanation:

Basically, an acid and a base which differs only by the presence or absence of  proton (hydrogen ion) are called a conjugate acid-base pair.

a) HI, I

This is incorrect. For the acid, HI the conjugate base is I⁻ ion.

b) HCHO2, SO4^2-

This is incorrect, there's no relationship between both entities.

c) CO3^2-, HCI

This is incorrect, there's no relationship between both entities.

d) PO4^3-, HPO4^2-

This is correct. The difference between both entities is the Hydrogen ion. This is the conjugate acid-base pair

6 0
2 years ago
The pictures below show samples of different substances.
Mrrafil [7]

Answer:

C. Yes, if each sample contains 6.02 x 10²³ atoms.

Explanation:

It is possible for each sample to contain 1 mole of each sample if and only if each of the sample if made up of 6.02 x 10²³ atoms.

6.02 x 10²³ atoms is the Avogadro's number. This number is equivalent to a mole of a substance.

  • If the amount of matter in the given substance is at least one mole, it is possible that they are made up of one mole each of each substance.
  • If they contain lesser amount of atoms, then it is not up to one mole of substance.
  • But if it is greater, then, we can have even more than one mole of substance.

A mole is simply a unit of measurement and it is equivalent to 6.02 x 10²³ atoms.

3 0
2 years ago
Read 2 more answers
Consider a mixture of oil and water. What terms would you use to describe this mixture? Check all that apply. Heterogeneous homo
GenaCL600 [577]

A mixture of oil and water is:

Heterogeneous

immiscible

<h3>What type of mixture of oil and water is?</h3>

The water molecules attract each other, and the oil molecules stick together. That causes oil and water to form two separate layers. Water molecules pack closer together, so they sink to the bottom, leaving oil sitting on top of the water. The mixture can be called as Emulsion. It is an immiscible liquid and the mixture is heterogeneous as oil floats on top of water surface but do not mix with it.

Thus, correct options are Heterogeneous and immiscible.

Find more information about Mixture here:

brainly.com/question/498370

6 0
2 years ago
Read 2 more answers
For the reaction represented by the equation 2KClO3 → 2KCl + 3O2, how many grams of potassium chlorate are required to produce 1
Vikentia [17]

 The grams  of potassium chlorate  that are required  to produce 160 g of oxygen  is   408.29  grams

 

<u><em>calculation</em></u>

 2 KClO₃→  2 KCl  + 3O₂

Step 1:  find the  moles of  O₂

moles  =  mass÷  molar mass

from periodic table  the  molar mass of O₂  = 16 x2 = 32 g/mol

moles  = 160 g÷ 32  g/mol =  5 moles

Step2 : use the  mole   ratio to determine the  moles of KClO₃

from equation given KClO₃ : O₂  is 2:3

therefore the v moles of KClO₃  =  5 moles x 2/3 = 3.333  moles


Step 3:  find the mass  of KClO₃

mass= moles x molar mass

from periodic table  the molar mass of KClO₃

= 39 + 35.5 + (16 x3) =122.5 g/mol


mass  = 3.333 moles x 122.5 g/mol =408.29 grams

7 0
3 years ago
Other questions:
  • 1. Concentrated HCl is 11.7M. What is the
    7·1 answer
  • What intermolecular forces are present in hydrogen chloride gas?
    5·1 answer
  • Which of the following is the correct formula for copper (I) sulfate trihydrate? CuSO4 · 3H2O
    10·2 answers
  • How many moles of oxygen would be needed to produce 84 moles of sulfur trioxide according to the following balanced chemical equ
    13·1 answer
  • Which element has the same number of valence electrons as hydrogen (H)? A. helium (He). . B. oxygen (O). . C. nitrogen (N). . D.
    8·2 answers
  • Which of the following contains most of the water on earth?
    11·2 answers
  • Which number indicates the energy level of an atom's valence electrons?
    6·1 answer
  • Which best describes the function of the structure labeled y​
    11·1 answer
  • How many atoms are in 1.4 mol of phosphorus trifluoride (PF3)?
    5·1 answer
  • Which particle model diagram represents xenon at stp?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!