Answer
monosaccharide
Explanation
The 3 parts are
1) A five carbon ribose sugar
2) A Phosphate molecule
3) The four nitrogenous bases
I hope that's help !
B. H3O+ ions as the only positive ions in solution
C. OH– ions as the only negative ions in solution
D. H– ions as the only negative ions in solution
Answer : The correct option is, (C) ions as the only negative ions in solution
Explanation :
According to the Arrhenius concept, an acid is a substance that ionizes in the water to give hydronium ion or hydrogen ion and a bases is a substance that ionizes in the water to give hydroxide ion .
A sample of is considered to be an Arrhenius base because when it dissolves in the water to yield ions as the only negative ions in solution.
Hence, the correct option is, (C)
One mole of any element contains 6.022×10²³ atoms which is also called Avogadro number. The mass of 0.159 mole silicon dioxide. is 9.55g.
The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity of amount of substance. It measure the number of elementary entities of a given substance that are present in a given sample.
Mathematically,
mole =given mass ÷ Molar mass
First of all we find the molar mass of silicon oxide
Molar mass of silicon oxide= atomic mass of silicon+2×molar mass of oxygen
Molar mass of silicon oxide=28.0855+2×16
Molar mass of silicon oxide=60.08 g/mol
Substituting the values in fisrt equation we get
0.159 mol=given mass÷60.08 g/mol
0.159 mole x 60.08 g/mol=mass
9.55g=mass of silicon oxide
Therefore the mass of 0.159 mol silicon dioxide. is 9.55g.
To know more about mole, here:
#SPJ2
Answer:
9.55 grams of SiO2
Explanation:
If the mass you mean by grams:
0.159 mole x 60.08 g (Periodic table by adding both elements)
Cancel moles with moles (Original moles with the 1 mol at the bottom of the grams) and gives you:
9.55 grams of SiO2
Select one:
a. Wave A and Wave B travel through Earth's interior.
b. Wave A and Wave B are absorbed by liquid medium.
c. Wave A and Wave C are absorbed by liquid medium.
On a seismogram, the first recorded waves are the P type, followed by the S type and, finally, the surface waves. Option A) A and B travel through Earth's interior.
Note: the question was answered according to the attached image. Look at the seismogram and the explanation, and if your image differs from this one, apply the same reasoning to answer the question.
When rocks break during plate movements, they generate waves that propagate, moving inside the Earth and on its surface. These are the seismic waves.
There are three types of waves,
P waves are the fastest in moving and can be transmitted through different materials, liquid or solid.
S wavesare slower and can not be transmitted through liquid masses.
Surface waves are the slowest ones.
Due to the difference in the speed, the first recorded waves on a seismograph during an earthquake are the P waves, followed by the S waves, and finally, the surface waves.
The difference in waves' speed is used to determine the location of the earthquake focus and the structures of Earth.
As waves move through different materials, they change their speed. This change leads scientists to know what type of masses they are going through.
Following the waves from earthquake focus and recording their travel speed is helpful to determine the structures of Earth's interior.
The provided seismogram shows,
A- P waves ⇒ Transmitted in the interior of the Earth ⇒ first ones to be recorded. They are absorbed by liquid and solid medium.
B- S waves ⇒ Transmitted in the interior of the Earth ⇒ second ones to be recorded. They are absorbed by solid medium.
C- Surface waves ⇒ Transmitted in the syperficial layers of the Earth ⇒ last ones to be recorded. They are the slowest ones.
According to this information, we can assume that the correct option is a. Wave A and Wave B travel through Earth's interior.
You can learn more about earthquake waves at
#SPJ5