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3 years ago

What are the four elements that make up most of the mass of the Earth's oceans?

Chemistry

2 answers:

maksim [4K]3 years ago

6 0

Answer:

Nitrogen, oxygen, carbon dioxide, and hydrogen

Explanation:

Oxygen and hyrogen make the water of oceans possible. Meanwhile, carbon dioxide and nitrogen help organisms living in the oceans.

Gemiola [76]3 years ago

4 0

Answer:

Iron, oxygen, silicon and magnesium.

Explanation:

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To start the chemical reaction, what must happen between the enzyme and the substrate?.

yaroslaw [1]

The enzyme must attract substrates to its active state.
At the end of the reaction, products dissociate from the surface of the enzyme

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2 years ago

1) How many moles are in 3.24 x 1022 atoms of water?

leva [86]

Answer:

0.054 moles

Explanation:

It is the rounded off answer.

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3 years ago

How do you find the theoretical yleld of a chemical reaction?

kvv77 [185]

Answer:

Explanation:

To calculate the theoretical yield, determine the number of moles of each reactant, in this case the sole reactant ethanol. Convert the 100 g to moles; the molecular weight of ethanol is 46 g/mole, therefore: Since there is only one reactant, it is also the limiting reagent.

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3 years ago

Write the condense structural formula of the following compounds.

lozanna [386]

A condensed structural formula is a simple way of representing organic compounds.

The given organic compounds and condensed structural formula is presented below;

The condense structural formula of alkene 2,7 Undecadiene with molecular formula C₁₁H₂₀ is in the image uploaded.
The condense structural formula of 2,8 Nonene with the molecular formula C₉H₁₈ is in the image uploaded.
The condense structural formula of 5 Decyne with the molecular formula C₁₀H₁₈ is in the image uploaded.

Learn more about structural formula here: brainly.com/question/514499

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3 years ago

What is component of John Dalton’s atomic theory?

Nat2105 [25]

Answer:

•Matter is made up of smallest indivisible particle named as atom.

•All atom of same element have equal atomic mass and identical properties.

•Compounds are made up two or more different types of atoms.

•In a chemical reaction rearrangement of atoms takes place.

•Atoms of different elements differ in mass and size.

6 0

3 years ago