Answer:
1. Density of the rectangular prism is <u>20 g/cm3</u>
2. A material's ability to dissolve : <u>Soubility</u>
3. <u>Intensive property</u> : A physical property that is independent of sample size.
Explanation:
Volume of Prism is calculated by :
Length = 3 cm
Width = 2 cm
Height = 1 cm
V = 6 cm3
mass = 120 g
Density = 20 g/cm3
2.
<u>Solubility :</u>
- It is the chemical property of the substance.
- It shows the ability of the solute to dissolve in the solvent at a given temperature.
3.
<u>Intensive Properties:</u>
- These are bulk properties(Do not depend upon the amount of matter present)
- They are independent of sample size.
- Example : boiling point,melting point,temperature,refractive index
Answer : Cr203
Explanation:
The molecular formula of the compound that has a percent composition of 38.7% carbon, 9.76% hydrogen, 51.5% oxygen is C2H6O2.
<h3>How to calculate molecular formula?</h3>
The molecular formula can be calculated from the empirical formula. The empirical formula of the compound is calculated as follows:
- C = 38.7% = 38.7g
- H = 9.76% = 9.76g
- O = 51.5% = 51.5g
Next, we convert the mass to moles by dividing by their atomic mass:
- C = 38.7 ÷ 12 = 3.23mol
- H = 9.76 ÷ 1 = 9.76mol
- O = 51.5÷ 16 = 3.22mol
Next, we divide by the smallest (3.22)
Hence, the empirical formula of the compound is CH3O
If the molar mass of the compound is 62g/mol;
(CH3O)n = 62
31n = 62
n = 2
(CH3O)2 = C2H6O2
Therefore, the molecular formula of the compound that has a percent composition of 38.7% carbon, 9.76% hydrogen, 51.5% oxygen is C2H6O2.
Learn more about molecular formula at: brainly.com/question/14425592
A) The bond that will be formed by these elements is : <u>Ionic Bond </u>
B) Group 1 elements Gives up its electron to Group 17 elements
<h3><u /></h3><h3><u>Electronegativity values </u></h3>
From the electronegativity values given in the question group 17 elements with an electronegativity value of 2.99 are more electronegative than group 1 elements with a value of 0.84. Therefore they accept electron transfer from group 1 elements.
The acceptance of electrons from group 17 elements leads to formation of an ionic bond between group 1 and group 17.
Hence we can conclude that the bond that will be formed by these elements is Ionic bond and Group 1 elements gives up its electron to group 17 elements.
Learn more about Ionic bonds : brainly.com/question/13526463
Solute is the detergent
Solvent is the water