Answer:
148g/mol
Explanation:
The molar mass of a compound is the sum of the molar masses of all the individual elements present in the compound.
Molar Mass of Mg(NO3)2 = 24 + 2[14 + (16x3)] = 24 + 2[14 + 48] = 24 + 2[62] = 24 + 124 = 148g/mol
The living things in the earth (biosphere) interact with the earth (geosphere) in many ways thereby changing the communities of organisms found in ecosystems in the geosphere.
<h3>What is biosphere?</h3>
The biosphere is a zone of life found on earth. Hence the biosphere consists of living things. The geosphere consists of refers to the earth excluding the hydrosphere.
The living things in the earth (biosphere) interact with the earth (geosphere) in many ways thereby changing the communities of organisms found in ecosystems in the geosphere. This change of communities is called ecological succession.
Learn more about geosphere: brainly.com/question/17484682
It will cover up all oxygen from the fire. And sand has no natural flammability because it is simply a crushed up mineral, so it can not make the fire any bigger.
<h3>
Answer:</h3>
- Can only be seen while looking through a lens
- May appear larger than the object
- Appears to come from behind the lens
<h3>
Explanation:</h3>
To answer this question we need to ask ourselves;
What is a virtual image?
- A virtual image is an image that can not be formed on a screen.
- It is formed by rays that appear to converge at a point.
What are the characteristics of a virtual image?
- A virtual image can only be seen while looking through lenses
- The image appear to come from behind the lens
- It may be larger than the object
- It can not be projected onto a screen.
- It is always upright
Given molecule:
CH3-CH2-CH2-CH2-CH2-CH2-CH3
- The molecule contain only C and H atoms, hence it is a hydrocarbon
- The C atoms in the linear chain are linked together by carbon-carbon single bonds, hence it is a saturated compound
- It has 7 C atoms and 16 H atoms, hence the molecular formula is C7H16
-The molecular formula can be generally represented as CnH2n+2 where n = 7. This corresponds to the general molecular formula for alkanes
The given molecule is best described as an <u>alkane</u>
