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bearhunter [10]
2 years ago
15

What is photosynthesis?​

Chemistry
1 answer:
Olin [163]2 years ago
4 0

Answer:

Photosynthesis is a process that occurs in the leaves of a plant and needs both chlorophyll and light energy.

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The following thermochemical equation is for the reaction of Fe 3 O 4 (s) with hydrogen (g) to form iron and water vapor Fe 3 O
Mila [183]

Answer:

41.3kJ of heat is absorbed

Explanation:

Based in the reaction:

Fe₃O₄(s) + 4H₂(g) → 3Fe(s) + 4H₂O(g) ΔH = 151kJ

<em>1 mole of Fe3O4 reacts with 4 moles of H₂, 151kJ are absorbed.</em>

63.4g of Fe₃O₄ (Molar mass: 231.533g/mol) are:

63.4g Fe₃O₄ × (1mol / 231.533g) = <em>0.274moles of Fe₃O₄</em>

These are the moles of Fe₃O₄ that react. As 1 mole of Fe₃O₄ in reaction absorb 151kJ, 0.274moles absorb:

0.274moles of Fe₃O₄ × (151kJ / 1 mole Fe₃O₄) =

<h3>41.3kJ of heat is absorbed</h3>

<em />

6 0
3 years ago
Compared to an atom of C-12, an atom of C-14 has
KonstantinChe [14]

Explanation:

Carbon-12 atoms have stable nuclei because of the 1:1 ratio of protons and neutrons.

Carbon-14 atoms have nuclei which are unstable. C-14 atoms will undergo alpha decay and produce atoms of N-14. Carbon-14 dating can be used to determine the age of artifacts which are not more than 50,000 years old.

8 0
3 years ago
Which property of isotopes makes them suitable for determining the dates of ancient artifacts? atomic number of the isotope rate
siniylev [52]
Each isotope has a unique rate of decay, making them suitable for determining the dates of ancient artifacts. The answer is "rate of decay of the isotope."
8 0
3 years ago
Carla is using a fertilizer that contains nitric acid.How can nitric acid be classified
Sergeu [11.5K]

Answer:

nitric acid can be classified as a strong acid

hope this helps have a nice day

Explanation:

6 0
3 years ago
Read 2 more answers
What astronomical equiptment did hypatia use?
abruzzese [7]
Hypatia used an astrolabe.

8 0
3 years ago
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