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3 years ago

5

The transfer of heat by the movement of heated fluid is called conduction. Please select the best answer from the choices provid

ed T F

2 answers:

ella [17]3 years ago

8 0

I would suppose it is false because conduction is the movement of heat between two objects that are in contact.

zimovet [89]3 years ago

8 0

False, that would be convection.

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Which of the following is the smallest volume? (2 points) 2500 mL

Virty [35]

So to put them all in the same units we have
<span>2500 mL </span>
<span>250 mL </span>
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4 years ago

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In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n

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Stoichiomety:

1 moles of C + 1 mol of O2 = 1 mol of CO2

multiply each # of moles times the atomic molar mass of the compund to find the relation is weights

Atomic or molar weights:

C: 12 g/mol
O2: 2 * 16 g/mol = 32 g/mol
CO2 = 12 g/mol + 2* 16 g/mol = 44 g/mol

Stoichiometry:

12 g of C react with 32 g of O2 to produce 44 g of CO2

Then 18 g of C will react with: 18 * 32/ 12 g of Oxygen = 48 g of Oxygen

And the result will be 12 g of C + 48 g of O2 = 60 g of CO2.

You cannot obtain 72 g of CO2 from 18 g of C.

May be they just pretended that you use the law of consrvation of mass and say that you need 72 g - 18g = 54 g. But it violates the proportion of C and O2 in the CO2 and is not possible.

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4 years ago

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What is the oxidation state of an individual phosphorus atom in P O 3 3−?

Tju [1.3M]

-3 - 3(-2) = +3
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3 years ago

What type of mutation occurred?

kotykmax [81]

Answer:

Insertions are mutations in which extra base pairs are inserted into a new place in the DNA. Deletions are mutations in which a section of DNA is lost, or deleted..
Germline mutations occur in gametes. Somatic mutations occur in other body cells.
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Point mutations change a single nucleotide.
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Deletion is a type of mutation involving the loss of genetic material. It can be small, involving a single missing DNA base pair, or large, involving a piece of a chromosome.
Base substitutions are the simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication. For example, during replication, a thymine nucleotide might be inserted in place of a guanine nucleotide.
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5. Discuss the phenomena of sunrise and sunset seen on Earth and describe how they will be different from the perspective of out

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