Answer:
it will change
Explanation:
if temperature of room is hot it doesn't freeze.
if temperature of room is cold it freezes
Answer:
Light
Explanation:
The discovery of light from the other side of a black hole was predicted by Einstein's theory of general relativity. ... The research began with a slightly different aim of a more common light formed by a black hole: the corona which wraps around the outside of it, formed as material falls in.
Answer:
It's size
Explanation:
The definition of a dwarf planet is "a celestial body that orbits the sun and has a spherical shape but is not large enough to disturb other objects from its orbit"
Essentially, "dwarf" is an adjective. Just like saying the colour distinguishes a purple planet...
Answer:
Which type of chemistry studies the chemical reactions that occur in the human body? .
biochemistry
The complete question is as follows: I want to make a homemade cake recipe you need 100 grams of sugar, calculate the moles to which it is equivalent and the number of molecules of sucrose.
Answer: In 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are
.
Explanation:
Given: Mass = 100 g
Molar mass of sugar = 342.3 g/mol
As number of moles is the mass of substance divided by its molar mass.
Hence, moles of sucrose are calculated as follows.
![Moles = \frac{mass}{molar mass}\\= \frac{100 g}{342.3 g/mol}\\= 0.292 mol](https://tex.z-dn.net/?f=Moles%20%3D%20%5Cfrac%7Bmass%7D%7Bmolar%20mass%7D%5C%5C%3D%20%5Cfrac%7B100%20g%7D%7B342.3%20g%2Fmol%7D%5C%5C%3D%200.292%20mol)
According to mole concept, 1 mole of every substance contains
molecules.
Hence, the number of molecules present in 0.292 mol are calculated as follows.
![0.292 mol \times 6.022 \times 10^{23}\\= 1.76 \times 10^{23}](https://tex.z-dn.net/?f=0.292%20mol%20%5Ctimes%206.022%20%5Ctimes%2010%5E%7B23%7D%5C%5C%3D%201.76%20%5Ctimes%2010%5E%7B23%7D)
Thus, we can conclude that in 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are
.