Answer: The first one: 2.50 x 10^-5
Explanation:
Raisins are dried up grapes. The drying process worked on preserving raisins. Most of the water contained in them was removed during the drying process. This dry environment is not suitable for bacteria to breed in and, thus, raisins won't go rancid.
Answer:
The empirical formula is P2O5 (option B)
Explanation:
An empirical formula does not necessarily represent the actual numbers of atoms present in a molecule of a compound; it represents only the ratio between those numbers.
The actual numbers of atoms of each element that occur in the smallest freely existing unit or molecule of the compound is expressed by the molecular formula of the compound.
The molecular formula of a compound may be the empirical formula, or it may be a multiple of the empirical formula.
If the molecular formula is P4O10, this means for each for P-atoms we have 10-O atoms this is a ratio 4:10 or 1: 2.5
To find the empirical formula we divide the molecular formula by 2 what will give us P2O5
For each 2 P atoms we have 5 O-atoms. This is a ratio 1: 2.5
This is the simpliest form for the compound P4O10.
The empirical formula is P2O5 (option B)
Answer:
A growing population will require more housing for shelter which may use trees as building supplies. To cook for a growing population could use fire as fuel to cook food. Trees can be used for so many things and a growing population will need more and more supplies which can be provided by trees. In short, a growing population may reduce your supply of trees due to increased demand for the resource. Even though trees are a renewable resource if you take them faster than they can be replenished you will run out.
Answer:
mass number
Explanation:
Answer and Explanation: The value closest to the mass of an atom is its mass number. The mass number is the total count of the protons and neutrons in the nucleus of the...