Shield volcano type of eruption?

Answer: Distillation

Explanation:

Distillation is the process of purifying a liquid by successive evaporation and condensation. Water vaporises at a lower temperature compared to the ink pigment, therefore, the mixture is heated to boiling so that the water evaporates leaving the ink pigments in the flask. The evaporated water can the be passed into a condenser which converts the water vapour into liquid.

Answer: Distillation

Explanation: Separate ink from water using a process called distillation. This is a process of separating two substances mixed together. Water vaporizes at a lower temperature than the ink pigment so if you heat them, the water evaporates, leaving the ink pigment in the flask.

Answer:

mass Mg = 1.937 Kg

Explanation:

from periodic table for Mg:

⇒ molecular mass Mg = 24.305 g/mol

∴ mol ≡ 6.022 E23 atoms

⇒ mol Mg = (4.80 E25 atoms)×(mol/6.022 E23 atoms)

⇒ mol Mg = 79.708 mol

⇒ mass Mg = (79.708 mol)×(24.305 g/mol)

⇒ mass Mg = 1937.3 g

⇒ mass Mg = 1.937 Kg

To identify pH with indicator paper,Set a piece of pH paper in front of each solution before testing to keep organized then, Use a transfer pipet to remove a few drops from the solution to drop onto the paper, Lastly Wait a minute or so before reading color.

What is a pH?

• The pH is a measure of how acidic/basic a solution bythe amount of free hydrogen and hydroxyl ions in the water.

• The range goes from 0 - 14, A point on  7 is neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates alkalinity.

A pH paper usually called litmus paper is used to determine if  the acidity, basicity or neutrality of a solution. This is determined by the following process:

• Set a piece of pH paper in front of each solution before testing to keep organized.
• Use a transfer pipet to remove a few drops from the solution to drop onto the paper.
• Wait a minute or so before reading color.

Now if the paper turns red, the pH may likely be below 7 to show acidity

if the paper turns blue the pH may likely be above  7 to show basicity/alkalinity.

if the paper turns green , the pH is 7 to show neutrality.

See here for similar answer on  pH with indicator paperbrainly.com/question/15639358

Answer:

A) Set a piece of pH paper in front of each solution before testing to keep organized.

C) Use a transfer pipet to remove a few drops from the solution to drop onto the paper.

D) Wait a minute or so before reading color.