All categories

3 years ago

Gneiss rock forms from a great amount of pressure and heat underground. What type of rock is it?

Chemistry

1 answer:

zysi [14]3 years ago

5 0

Answer:

Gneiss is a foliated metamorphic rock

Explanation:

Gneiss is a high grade metamorphic rock, meaning that it has been subjected to higher temperatures and pressures .

You might be interested in

Which pairing accurately matches a biomolecules polymer with its monomer subunit

BartSMP [9]

The pairing that accurately matches a bio molecule polymer with its monomer subunit would be B. Protein and amino acids.

6 0

2 years ago

Read 2 more answers

Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What is the correct balanced chemical equation for this reac

maks197457 [2]

The correct balanced chemical equation which occur when methane burn in oxygen gas is

CH4 + 2O2 --> 2H2O +CO2 (answer D)

when methane is burned in presence of oxygen gas it produces carbon(IV) oxide and water and energy,that is 1 mole of CH4 reacted with 2 moles of O2 to form 2 moles of water and 1 mole of CO2 and enegy. This energy make the methane to be used as fuel.

5 0

3 years ago

Read 2 more answers

What kind of glacier has pieces that breaks off as icebergs

forsale [732]

There is no specific name for a glacier that break off as an iceberg. However, the part of the glacier in which this happens is called the "zone of wastage". Chunks break off in a process called "calving".

5 0

2 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

7 0

2 years ago

In the reaction h2so4 + na2co3 → na2so4 + co2 + h2o 14.5 g of water is collected. what is the molarity of sulfuric acid if 1.78

Yuliya22 [10]

H2SO4 + Na2CO3 → Na2SO4 + CO2 + H2O

The molarity of sulfuric acid if 1.78 L were used in the above reaction is
0.453 M (answer 2)

Calculation
find the moles of water produced = mass/molar mass

= 14.5 g /18 g/mol = 0.806 moles

by use of of mole ratio between H2So4 to H2O which is 1:1 the moles of H2SO4 is also = 0.806 moles

Molarity of H2SO4 is therefore = moles/volume in liters

= 0.806 mol/ 1.78 L = 0.453 M (answer 2)

8 0

2 years ago