Answer:
Science is the study of the world and how it works through collecting data using the scientific method. Technology is the application of that scientific knowledge to create devices that solve problems and carry out tasks.
<em>M CaCl₂: 40+(35,5×2) = 111 g/mol</em>
6,02·10²³ molecules ---------- 111g
X molecules --------------------- 75,9g
X = (75,9×<span>6,02·10²³)/111
X = <u>4,116</u></span><span><u>·10²³</u> molecules of CaCl</span>₂
:)
Answer:
1 kg
Explanation:
prefix nano means 10^-9
kilo 10^3
mili 10^-3
centi 10^-2
the largest amount is 1 kg
Answer:
Xenon
Explanation:
Avogadro’s number represent the number of the constituent particles which are present in one mole of the substance. It is named after scientist Amedeo Avogadro and is denoted by
.
Avogadro constant:-
![N_a=6.023\times 10^{23}](https://tex.z-dn.net/?f=N_a%3D6.023%5Ctimes%2010%5E%7B23%7D)
Let the molar mass of the element is x g/mol
So,
atoms have a mass of x g
Also,
atoms have a mass of
g
This mass is equal to 848 g
So,
![\frac{x}{6.023\times 10^{23}}\times 3.89\times 10^{24}=848](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B6.023%5Ctimes%2010%5E%7B23%7D%7D%5Ctimes%203.89%5Ctimes%2010%5E%7B24%7D%3D848)
x= 131.3 g/mol
This mass correspond to xenon.
Answer:the size of the atom increases is your answer have a great day
Explanation: