Answer:
The scientific name of the grasshopper is Caelifera.
Explanation:
hope this helps.
Answer: Option (D) is the correct answer.
Explanation:
When heat or energy is transferred through the space in the form of waves or through a material medium then it is know as radiation.
For example, when we take Sun bath then our body gets warm due to solar radiation.
For transfer of heat through radiation it is not necessary that the objects have to in contact with each other.
Thus, we can conclude that out of the given options, the transmission of heat without any contact.
Answer: C) Both are made up of monomers that are linked by covalent bonds
Explanation: Polymers are large molecules which are formed by combination of small repeating units called as monomers.
Natural polymers are found in nature such as cellulose whereas synthetic polymers are synthesized in laboratories such as Nylon 6,6.
All the polymers, whether natural or synthetic are made up of monomers and are joined by covalent bonds.
Explanation:
The problem basically wants you to find a way to convert between the number of atoms present in the sample and the number of moles they are equivalent to.
To convert between atoms and moles we use something called Avogadro's constant, which basically acts as the definition of a mole.
More specifically, in order to have one mole of an element you need
6.022 x 10^23 atoms of that element. You can thus use this number as a conversion factor to take you from atoms to moles or vice versa.
In your case, you will have
3.90 x 10^ 26 atoms Zn x 1 mole Zn ( Avogrado’s constant) / 6.022 x 10^23 atoms Zn
= 6.5 x 10^8 is the answer
Answer:
Nitrogen monoxide and oxygen are called the reactants
Explanation:
Step 1: Given data
Nitrogen monoxide = NO
Oxygen = O2
Step 2: Balanced equation
2NO + O2 → 2NO2
This means that 2 moles of NO will be consumed and and 1 mole of O2 to produce 2 moles of NO2
This means NO2 is the prodcut that is produced.
NO +O2 react with eachother, to form NO2
This means nitrogen monoxide (NO) and Oxygen (O2) are called the reactants.
