CHEMISTRY HIGH SCHOOL

Which type of perspective makes objects look similar to how they look in real life (select the best answer)linear perspective

fractional perspective

isometric perspective

Answers

Answer 1
Answer: I believe it's fractional perspective
Answer 2
Answer:

Answer:

The answer is linear Perspective

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The metric unit of force is the A. kilogram.B. newton.C. gram.D. nanometer.
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In your own words, what is an isotope

Answers

Answer:

It is a chemical element with an atomic number.

if 500g of water is added to 75g of 25% nacl solution, what is the percent solution by mass of nacl in the diluted solution

Answers

Percent solution of NaCl = 3.26%

Step 1: Determine the mass of NaCl in the initial solution
The initial solution is 25% NaCl, which means there are 25 grams of NaCl for every 100 grams of solution. To find the mass of NaCl in the 75g solution, use this proportion:

(25g NaCl / 100g solution) = (x / 75g solution)

Solve for x:

x = (25g NaCl * 75g solution) / 100g solution
x = 18.75g NaCl

Step 2: Determine the total mass of the diluted solution
Add the mass of water (500g) to the mass of the initial solution (75g):

Total mass = 500g water + 75g solution = 575g diluted solution

Step 3: Calculate the percentage of NaCl in the diluted solution
Use the mass of NaCl from Step 1 and the total mass of the diluted solution from Step 2 to find the percentage by mass:

Percentage = (Mass of NaCl / Total mass of diluted solution) * 100
Percentage = (18.75g NaCl / 575g diluted solution) * 100
Percentage ≈ 3.26%

The percent solution by mass of NaCl in the diluted solution is approximately 3.26%.

To learn more about Percent Solutions, visit:

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Determine the number of neutrons in an atom of Si-29

Answers

15 as 29 (atomic mass-number of neutrons and protons) - 14 (atomic number-number of protons)

In which pair would both compounds have the same empirical formula? A. H2O and H2O2 B. BaSO4 and BaSO3 C. FeO and Fe2O3 D. C6H12O6 and HC2H3O2

Answers

The pair of both compounds that have the same empirical formula are C6H12O6 and HC2H3O2. The answer is letter D. H2O and H2O2, BaSO4 and BaSO3 and FeO and Fe2O3 do not have the same empirical formula.

Which equations shows the complete dissociation of a strong base? HCl -> cl- + H+

HNO2 -> H+ + NO2-

HA + h20 -> A- + H+ + h20

BOH + h20 -> B+ + OH- + H20

Answers

The correct answer is the fourth option. The complete dissociation of a strong base is BOH + h20 -> B+ + OH- + H20 since this is the only base from the choices given. A base is a substance that accepts hydrogen ions. 

Answer : The correct option is, (4) BOH+H_20\rightarrow B^++OH^-+H_20

Explanation :

Strong acid : Strong acids are those acids which are completely dissociates into ions in water. It dissociates into hydrogen ion and an anion.

Strong base : Strong base are those base which are completely dissociates into ions in water. It dissociates into hydroxide ion and a cation.

In all the given options, option (4) BOH+H_20\rightarrow B^++OH^-+H_20 equation shows the complete dissociation of a strong base.

While the other options shows the complete dissociation of an acid.

A compound contain only carbon, Hydrogen, Oxygen. Mass percentage of carbon is 52.2%, relative molecular mass of compound is 46, Find how many hydrogen atom present​

Answers

Answer:

Six

Explanation:

Mᵣ                           =  46

Aᵣ(C) = 0.522 × 46 =  24

Difference              =  22

Less 1 O                  = -16

Aᵣ(H)                        =   6

The relative atomic mass of the H atoms is 6.

The molecule contains six hydrogen atoms.
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