An occluded front forms when a warm air mass is caught between two cooler air masses.
Explanation:
Given that,
The dimensions of the block of iron is 2 cm, 10 cm and 5 cm
To find,
The mass of the block.
Solution,
We know that, the density of iron is, d = 7.874 g/cm³
Density,
Where
m is mass and V is volume
Solving for m,
The block is in the form of a cuboid,
So,
Answer,
The mass of the block of iron is .
Reference,
Answer : 787.4 g
Explanation : With the given information; the volume of the block will be equal to = 5 cm X 10 cm X 2 cm = 100 .
Therefore, the volume will be100 .
but density of iron is found to be
So, now calculating for mass; on the basis of the density formula;
which is density = mass/volume; so, mass = density X volume;
Therefore, mass will be 7.874 g X 100 = 787.4 g
mass of the iron block = 787.4 g
★ C = 1, H = 6, O = 5
★ C = 6, H = 6, O = 1
★ the number of molecules.
Answer:
The subscripts in a chemical formula represent two things:
Explanation:
The subscripts in a chemical formula represent two things:
1. The number of atoms: The subscripts indicate the number of atoms of each element present in a compound. For example, in the chemical formula H2O, the subscript "2" indicates that there are two hydrogen atoms in each water molecule.
2. The number of molecules: The subscripts can also represent the number of molecules in a compound. However, it's important to note that this is not always the case. In most cases, the subscripts in a chemical formula specifically indicate the number of atoms rather than the number of molecules.
To clarify the examples given:
- The statement "★ the number of atoms" is correct. Subscripts in a chemical formula do represent the number of atoms.
- The statements "★ C = 1, H = 6, O = 5" and "★ C = 6, H = 6, O = 1" are not relevant to the question as they do not pertain to the role of subscripts in a chemical formula.