Answer:
a compound is a substance that contains atoms of two or more chemical elements held together by chemical bonds. any combination of two or more parts, aspects, etc. a word formed from two existing words or combining forms.
Explanation:
a substance that contains atoms of two or more chemical elements held together by chemical bonds. any combination of two or more parts, aspects, etc. a word formed from two existing words or combining forms.
Answer
The answer and procedures of the exercise are attached in the following archives.
Explanation
You will find the procedures, formulas or necessary explanations in the archive attached below. If you have any question ask and I will aclare your doubts kindly.
Answer:
3.54 L
Explanation:
To find the new volume, we'll use this formula:
V₁ = Liters (5.6)
T₁ = Volume in kelvin (273 + 35 = 308)
V₂ = New liters (?)
T₂ = New temperature (273 - 78 = 195)
First, cross multiply
1092 = V₂308
Divide both sides by 308
1092/308 = V₂308/308
V₂ = 3.54
The number of milliliters of isopropyl alcohol that are in a 400 ml bottle of this solution is 280 Ml
calculation
% V/V = volume of solute/ volume of solution x 100
Let the volume of solute be = y ml
the volume of solution = 400 ml
convert 70% to fraction = 70/100
by substituting the value in the equation
= y ml/ 400 ml = 70/100
by cross multiplication
100y =400 x70
100y= 28000
y= 280 ml
Chemicals are used to clean soil to remove dangerous materials