Explanation:
Mass is the amount of matter in an object. Mass is measured in grams (1000 grams = 1 kilogram). 2. Solid- The particles of matter in a solid are tightly packed together and have a definite shape and take up a definite amount of space (volume).
for example and apple you can use a scale to find the mass. or a graduated cylinder to find the volume
Answer:
4. gives the relative number of atoms of each element per formula unit
Explanation:
An empirical formula -
It refers to the formula which determined the simplest whole - number ratio of all the atoms in a given species , is referred to as an empirical formula .
In simple terms ,
It is he smallest formula of the whole number which when multiplied by some whole number gives the actual structure of the compound .
Hence , from the given information of the question ,
The correct option for empirical formula is 4.
Answer:
5000 molecules of A will needed to react with 5000 molecules of B to gives 5000 molecules of AB.
Explanation:
A+B → AB
Given that 100 molecules of A combines with 100 molecules of B to give 100 molecules of AB.
According to reaction, 1 molecule of AB is produced by 1 molecule of A.
Then 5000 molecules of AB will be given by:
molecules of A
5000 molecules of A will needed to react with 5000 molecules of B to gives 5000 molecules of AB.
Answer:
It can enhance survival because the animals for example birds are migrating to those places for high or increasing resources
Explanation: