How much heat energy is required to raise the temperature of 0.368 kg of copper from 23.0 ∘C to 60.0 ∘C? The specific heat of copper is 0.0920 cal/(g⋅∘C)

Answers

Answer 1

Answer: 23.0 + 60.0 = 83.0° C heat energy is required to raise

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Pollution from many nations contributes to the Great Pacific Garbage Patch. true or false

Answers

Answer: True

The great pacific garbage patch is a landfill of waste that is located between Hawaii and California. It is the biggest landfill in the world. This zone consists of large population of phytoplanktons and small fishes but it lacks large fishes and mammals. This zone is mainly occupied with plastics which floats over the surface of water. The eastern and western patch collectively called as the great pacific garbage patch. From the west coast the waste is discharged by the U.S and from the east coast the waste is discharged by the Japan.

Therefore, the statement pollution from many nations contributes to the Great Pacific Garbage Patch is true.

This would be true for the most part

Which highly reactive gas was probably absent from the Earth's primitive atmosphere? O2 (oxygen gas) water vapor methane carbon dioxide

Answers

The highly reactive gas that was probably absent from the Earth's primitive atmosphere is oxygen.

The atmosphere refers to the thin layer of gas above the earth's crust. This thin layer of gases is composed of a mixture of gases. The earth's primitive form also had an atmosphere.

However, we must recall that in its primitive form the earth was mostly under reducing conditions and there was no oxygen. However, photosynthesis by plants increased the oxygen content of the earth.

Learn more: brainly.com/question/165414

Oxygen gas was most likely absent from Earth's primitive atmosphere. The current theory is that the Earth's early atmosphere was composed of mainly carbon dioxide and methane due to the high volcanic activity. Cyanobacteria and their use of photosynthesis was what caused earth's atmosphere to become oxygen enriched.
I hope that helps.

What is Rutherford atomic modle

Answers

Answer:

Rutherford's atomic model explained how the electrons surrounded the nucleus of protons and neutrons. His model showed how J. J. Thomson's Plum Pudding model was incorrect.

Answer:Rutherford model of an atom shows that an atom is mostly an empty space,with electrons orbiting a fixed positively charged nucleus in set.

Explanation:

A 1.00 g sample of a hydrogen peroxide (H2O2) solution is placed in an Erlenmeyer flask and diluted with 20 mL of 1 M aqueous sulfuric acid. To this solution is added 0.0200 M KMnO4 solution via a buret, until a pale purple color persists. This requires 22.50 mL of KMnO4 solution. What is the percent by mass of hydrogen peroxide in the original solution? (A) 0.613% (B) 1.53% (C) 3.83% (D) 7.65%

Answers

the percent by mass is0.613

In a chemical reaction, the mass of the products _____ the mass of the reactants.is greater than
is less than
is equal to
has no relationship to

Answers

Answer: is equal to

Explanation: According to the law of conservation of mass, mass can neither be created nor be destroyed. The mass has to be same on both sides of the reaction and to make this happen, the number of atoms of every element must be equal in reactants and products.

$2H_2+O_2\rightarrow 2H_2O$

2 moles of hydrogen weigh= $2* 2g/mol=4g$

1 mole of oxygen weigh = 32 g

Mass of reactants = 36 g

2 moles of water weigh= $2* 18g/mol=36g$

Mass of products = 36 g

Thus mass of reactants = mass of products = 36 g

is equal to. Regardless of the product that you want to keep, since mass is like energy, it can't be created or destroyed. Therefore it always remains the same.

What type of fault usually occurs because of tension?a.
folded
c.
strike-slip
b.
normal
d.
reverse

Answers

Answer:

NOT C

Explanation:

got it wrong

C i think , im not sure

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CO2 + H2 -> CO + H2O What is being oxidized?

The science of using tree rings to determine absolute age is calleda. disconformity. b. radiometric dating. c. dendrochronology. d. radioactive dating.

What is the 10% energy rule?