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
jekas [21]
3 years ago
15

Overall do you think photosynthesis is endothermic or exothermic

Chemistry
1 answer:
blondinia [14]3 years ago
6 0

Answer:

Endothermic hope that helps

Explanation:

You might be interested in
The most common source of copper (cu) is the mineral chalcopyrite (cufes2). how many kilograms of chalcopyrite must be mined to
tigry1 [53]

Answer : 0.8663 Kg of chalcopyrite must be mined to obtained 300 g of pure Cu.

Solution : Given,

Mass of Cu = 300 g

Molar mass of Cu = 63.546 g/mole

Molar mass of CuFeS_2 = 183.511 g/mole

  • First we have to calculate the moles of Cu.

\text{ Moles of Cu}=\frac{\text{ Given mass of Cu}}{\text{ Molar mass of Cu}}= \frac{300g}{63.546g/mole}=4.7209moles

The moles of Cu = 4.7209 moles

From the given chemical formula, CuFeS_2 we conclude that the each mole of compound contain one mole of Cu.

So, The moles of Cu = Moles of CuFeS_2 = 4.4209 moles

  • Now we have to calculate the mass of CuFeS_2.

Mass of CuFeS_2 = Moles of CuFeS_2 × Molar mass of CuFeS_2 = 4.4209 moles × 183.511 g/mole = 866.337 g

Mass of CuFeS_2 = 866.337 g = 0.8663 Kg         (1 Kg = 1000 g)

Therefore, 0.8663 Kg of chalcopyrite must be mined to obtained 300 g of pure Cu.


3 0
3 years ago
What happens when iron is placed in a solution containing copper ions?
alexgriva [62]

When an iron is dipped in Copper Sulphate

Solution this reaction between them and

copper sulphate change into blue color to light

green color. This show that iron is more

reactive then copper, it can to replace copper

from CuSO4 , CuSO4 is of blue color and

FeSO4 is light green color.

Hope it helps

8 0
4 years ago
5 lists of physical change
Alecsey [184]
Crushing a can, breaking glass, cutting paper, boiling water, chopping wood, and mixing water and sand
6 0
4 years ago
What is the pressure in mm hg of a 0.025 mole sample of co2 at 350 k in a 200 l container?
Leni [432]

Answer:

0.65mmHg

Explanation:

Take R =8.314J/mol/K

V=200dm3

PV=nRT

P=0.025×8.314×623/200

=0.65mmHg

7 0
1 year ago
Un camion que circula a 90 km hora frena uniformemente con una aceleracion de -5 metros por segundos al cuadrado
kozerog [31]

Answer:

no habla espanol

Explanation:

7 0
3 years ago
Other questions:
  • What does the kinetic theory say about the kinetic energy present in solids
    8·1 answer
  • Isotopes percent abundance of antimony
    13·1 answer
  • Which element has atoms that can form halide atoms?
    7·1 answer
  • How do scientists perform an artificial transmutation
    13·2 answers
  • Why are naturally occurring substances, such as particulates or carbon dioxide, sometimes considered pollutants?
    5·2 answers
  • Which phrase correctly describes a Lewis dot structure for carbon?
    8·2 answers
  • What is the atomic nucleus made of ?
    7·2 answers
  • Write down the molecular formula and molecular weight of carbon dioxide . ​
    7·1 answer
  • Determine the empirical formula for a compound that is 64.8% C, 13.6% H, and 21.6% O by mass.
    5·1 answer
  • What are the relevant equations for oxidation and reduction<br><br>​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!