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gayaneshka [121]
3 years ago
6

Which best describes how water's movement affects landforms? Select one 0 Mechanical weathering by water causes rock to break do

wn, changing the shape of landforms Mechanical and chemical weathering by water cause rock to break down, and erosion by water causes the movement of pieces of rock. These processes all contribute to how water's movement affects landforms. O Chemical weathering by water causes rock to break down changing the shape of landforms Erosion by water causes the movement of pieces of rock, changing the shape of landforms​
Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

Answer:

......................................................................................................

I..............

dont..............

know.............

sorry..........

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Explanation:

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Why is the greenhouse effect important to life on earth
navik [9.2K]

Answer:

Because Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. And this way, they act like the glass walls of a greenhouse. This greenhouse effect also keeps the Earth warm enough to sustain life.

Explanation:

8 0
3 years ago
Read 2 more answers
The polymerization of amino acids produces:
Delicious77 [7]

Answer:

Proteins

Explanation:

Polymerization, in chemistry, is the chemical combination of monomeric units to form a polymer. Polymers are large molecules made up of smaller units called monomers. Amino acids are the monomeric units of proteins i.e. A protein is made up of of many amino acids joined together.

Therefore, the chemical combination of amino acids will form a peptide bond between the carbon atom of the acid group and nitrogen atom of the amine group in the structure of the amino acids. This is done by the loss of a water molecule. The continuous repetition of this polymerization process will form a chain called polypeptide, which is the PROTEIN.

8 0
3 years ago
What is the wavelength of infrared radiation with a frequency of 3.85 x 10^12 Hz?
ELEN [110]

Answer:

Wavelenght is 7,79x10⁻⁵ m

Explanation:

The equation that connects wavelentgh (λ) and frequency (ν) is:

λ=c/ν

Where c is speed of light (3x10⁸ m/sec) and λ is expressed in lenght´s units and ν is expressed in "time⁻¹ " units (for example, sec⁻¹)

According to the details, if we just replace the given value of frequency, we just obtaing wavelenght data:

λ= (3x10⁸ m/sec)/(3,85x10¹² sec⁻¹) = 7,79x10⁻⁵ m

3 0
3 years ago
As a "rule of thumb" there are 20 drops of a liquid in a mL. Using this estimate and a density of 1.685, how many moles are in 2
arlik [135]

Answer:

0.020 mol

Explanation:

Let's consider the following relations:

  • 20 drops of a liquid have a volume of 1 mL.
  • The density of the solution is 1.685 g/mL, that is, each milliliter of solution has a mass of 1.685 g of solution.
  • There are 85 g of phosphoric acid per 100 grams of solution (85 % by weight).
  • The molar mass of phosphoric acid is 97.99 g/mol

With these relations, we can calculate the moles of phosphoric acid in 27 drops of solution.

27drop \times \frac{1mL}{20drop} \times \frac{1.685gSolution}{1mL} \times \frac{85gH_3PO_4}{100gSolution} \times \frac{1molH_3PO_4}{97.99gH_3PO_4} = 0.020 mol

4 0
2 years ago
5. A flask containing 90.0 mL of hydrogen gas was collected under a pressure of 97.5 atm. At what
marishachu [46]

Answer:

0.125 atm

Explanation:

From the question,

Applying boyles law

PV = P'V'................................. Equation 1

Where P = Initial pressure, V = Initial volume, P' = Final pressure, V' = final Volume.

make P' the subject of the equation

P' = PV/V'............................. Equation 2

Given: P = 97.5 atm, V = 90 mL = 0.09 L, V' = 70 L.

Substitute these values into equation 2

P' = 97.5×0.09/70

P' = 0.125 atm

5 0
3 years ago
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