Answer:
48.6 g
Explanation:
Given data:
Length of one side = 3 cm
Density of cube = 8.1 g/cm³
Mass of cube = ?
Solution:
First of all we will calculate the volume of cube.
V = length × height × width
V = 3 cm × 3cm× 3cm
V = 27cm³
Now we will determine the mass by using density formula.
d = m/v
d = density
m = mass
v = volume
8.1 g/cm³ = m/ 27 cm³
m = 8.1 g/cm³ ×27 cm³
m = 48.6 g
The type of crude oil that is considered to be the highest quality for gasoline is West Texas Intermediate (Option B).
<h3>What is oil?</h3>
Oil is a fossil fuel obtained from Earth's crust, which is fundamental nowadays to generate electricity.
West Texas Intermediate is a highly pure and high-type energy source of crude oil used in industry.
In conclusion, the type of crude oil that is considered to be the highest quality for gasoline is West Texas Intermediate.
Learn more about oil fuel here:
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B. The erosion of the walls of a canyon hide. When wind, water,etc washes away sand dirt gravel etc it is an example of erosion. the walls of a canyon hide can erode rather quickly as well.
it causes bacteria and viruses from human and animal waste, and a major cause of illness from contaminated drinking water. Diseases spread by unsafe water include cholera, giardia, and typhoid.
Answer: 2) Chloroform & Caustic potash
Explanation:
The carbylamine reaction is a kind of chemical test which is done to detect primary amines in an unknown solution. It cannot detect secondary and tertiary amines.
The reaction involves the heating with up of the unknown solution with alcoholic potassium hydroxide or caustic potash and the chloroform.
In the presence of primary amine, the production of isocyanide results.
