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3 years ago

The other half is posted !!!!!!

Chemistry

2 answers:

ycow [4]3 years ago

8 0

Where are the instructions?

koban [17]3 years ago

3 0

Answer:

this isn't an answer just need these points

Explanation:

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Al2O3 + Fe Yields Fe3O4 + Al need before tomorrow

ella [17]

=148.413159df2ilo4sy+al2o3+al is the answer and have a nice day :)

4 0

3 years ago

The specific heat of copper metal is 0. 385 J/(g °C). How much energy must be added to a 35. 0-gram sample of copper to change t

Rus_ich [418]

The amount of heat required for changing the temperature of copper has been 606 J. Thus, option B is correct.

Specific heat has been defined as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius.

The heat required to raise the temperature has been expressed as:

$\rm Heat=mass\;\times\;specific\;heat\;\times\;Change\;in\;temperature$

<h3>Computation for the heat energy required</h3>

The given specific heat of copper has been $\rm 0.385\;J/g^\circ C$

The mass of copper has been, $\rm 35\;g$

The initial temperature of copper has been, $\rm 20^\circ C$

The final temperature of copper has been, $\rm 65^\circ C$

The change in temperature has been, $\Delta T$

$\Delta T=\text{Final\;temperature-Initial\;temperature}\\\Delta T =65^\circ \text C-20^\circ \text C\\\Delta T=45^\circ \text C$

Substituting the values for the heat required as:

$\rm Heat=35\;g\;\times\;0.385\;J/g^\circ C\;\times\;45^\circ C\\Heat=606\;J$

The amount of heat required for changing the temperature of copper has been 606 J. Thus, option B is correct.

Learn more about specific heat, here:

brainly.com/question/2094845

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2 years ago

Determine the molarity for each of these solutions. Then lost the solutions in order of increasing molarity.

Vaselesa [24]

B.) 50g C6H1206 per 0.25L

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3 years ago

Suppose you were given a substance and asked to determine weather or not it was a plasma. Write the characteristics you would lo

Sphinxa [80]

Electrical conductivity, electromagnetism, and temperature are the features that one would look for in order to determine plasma. Plasma refers to a hot ionized gas possessing high electrical conductivity. It is electrically neutral with negative and positive particles. It can be considered the most abundant form of matter in the universe.

The features of plasma are substantially distinct from those of the usual neutral gases so that plasmas are regarded as a different fourth state of matter.

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3 years ago

Read 2 more answers

How many moles of atoms are in 7.00 g of carbon 13 a b c d?

EastWind [94]

7/13 moles because a mole is one gram times the molecular weight.

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3 years ago