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3 years ago

What are the Characteristics of handwriting?

Chemistry

2 answers:

mel-nik [20]3 years ago

5 0

Answer:

the specific shape of letters, e.g. their roundness or sharpness.

regular or irregular spacing between letters.

the slope of the letters.

the rhythmic repetition of the elements or arrhythmia.

the pressure to the paper.

the average size of letters.

the thickness of letters.

inna [77]3 years ago

4 0

Line quality: Examiners determine whether the letters flow in a smooth manner, or in an erratic or shaky way.

Spacing: Examiners determine whether the letters have equal spaces from each other or crowded.

Size consistency: Examiners check the consistency in terms of the ratio of the letter's height to its width.

You might be interested in

If you have an aqueous solution that is 13.5 % Na3PO4 by mass, what is the molality of Na3PO4 in the solution?

Nata [24]

Considering the definition of percentage by mass and molality, the molality of Na₃PO₄ in the solution is 0.948 $\frac{moles}{kg}$ .

Percentage by mass

The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.

In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.

The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

$percentage by mass=\frac{mass of solute}{mass of solution}x100$

Molality

Molality is the ratio of the number of moles of any dissolved solute to kilograms of solvent.

The Molality of a solution is determined by the expression:

$molality=\frac{number of moles of solute}{kilograms of solvent}$

This case

Considering 100 grams as a sample of the solution, then the value of the percentage of concentration given indicates that 13.5 g correspond to Na₃PO₄.

Remember that percent concentration by mass is calculated using the mass of solute and the mass of the solution, which includes both the solute and the solvent. Then:

mass solution= mass solute + mass solvent

100 g= 13.5 g + mass solvent

100 g - 13.5 g= mass solvent

86.5 g= mass solvent

Then, you know:

number of moles of solvent= $13.5 gramsx\frac{1 mole}{163.94 grams} =0.082 moles$ being 163.94 $\frac{grams}{mole}$ the molar mass of Na₃PO₄, this is the amount of mass a substance contains in one mole.
mass of solvent= 86.5 grams= 0.0865 kg (being 1000 g= 1 kg)

Then, replacing in the definition of molality:

$molality=\frac{0.082 moles}{0.0865 kg}$

Solving:

molality= 0.948 $\frac{moles}{kg}$

Finally, the molality of Na₃PO₄ in the solution is 0.948 $\frac{moles}{kg}$ .

Learn more about:

mass percentage:

molality

7 0

3 years ago

Whats the atomic mass of an atom

lapo4ka [179]

Atomic mass is usually defined by the total number of protons, neutrons and electrons in a single atom. You can measure it by spectrometry.

8 0

3 years ago

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Heart, 5 stars, Brainiest, and 40 coins if right! Answer needed ASAP

kicyunya [14]

Answer:

His kinetic energy is converted into potential energy.

Explanation:

6 0

3 years ago

Use the periodic table and example bond table to answer the question.

lyudmila [28]

In keeping with the general trends, K-Br will have the smallest bond energy. The bond energy refers to the energy that keeps the atoms in a bond together.

<h3>What is bond energy?</h3>

Bond energy is the energy that is required to hold atoms together in a bond. This energy must also be supplied when the atoms are to be separated.

We have the bond energies of each of the bons in the question, we have to note that the the smallest value of bond energy is Na-Br hence in keeping with the general trends, K-Br will have the smallest bond energy.

Learn more about bond energies: brainly.com/question/14842720?

7 0

2 years ago

Which best describes the importance of the microscope to the development of cell theory? Microscopes color different parts of ce

aliya0001 [1]

Cells are too small to see with the naked eye.

It's pretty straight forward, use the cross-out method.

1) Microscopes MAGNIFY images, they don't color the cells. In fact, scientists have to use these chemicals to "stain" or color the cells to see them more easily through microscopes.

2) If the lenses of a microscope reduced the image of an organism to the size of a cell, you'd be seeing a very tiny human through your microscope, instead of actual cells.

3) Microscopes don't "trap" anything. In fact, scientists use plates or slides under microscopes to contain what they're studying.

8 0

3 years ago

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