1 mole = 6.022 * 10^23 formula units.
1.84*10^24 formula units CaCl₂ * (1 mole CaCl₂/6.022*10^23 formula units CaCl₂) = 3.06 moles of CaCl₂.
There are 3.06 moles of CaCl₂.
Answer: A) Nonmetal carbon shares valence electrons with each nonmetal chlorine forming four covalent bonds.
Explanation: Covalent bond is formed by sharing of electrons between atoms.
Ionic bond is formed by transfer of electrons between atoms.
Carbon with atomic no 6 and has configuration of 
. Carbon has 4 valence electrons. It can only share electrons as it is difficult to gain or lose 4 electrons to complete it's octet.
Chlorine with atomic no 17 has configuration of 
. It has 7 valence electrons and need one electron to complete its octet.
Thus carbon will share 4 electrons, one each with four chlorine atoms to form carbon tetra chloride.
Answer:
B no observation pls mark me branilest
Answer:
0.26 ml
Explanation:
d = m/V
=> V = m/d = 15.2/58 = 0.26 ml
Answer: D: y - 1 = (3/2) (x + 3)
Explanation:
The very first thing that needs to be done is to calculate the slope of the line shown, as we have to points, we can do it following the equation:
m=(y2 - y1)/(x2 - x1)
We know that the x1,y1 couple is (2,2) and the x2,y2 couple is (-2,-4), then we replace the values on the equation and we have:
m=(-4 - 2)/(-2 - 2) = -6/-4, then we simplify the result and we have 3/2.
We already have the slope of the equation, we are just missing the units that the line is moved to the left. We know that the equation must follow the form y = mx + b, and we already know m, we are missing b on both equations, but, as the line drawn is passing by (0,-1), or the origin, we know that b for that equation is -1. So the equation for that line is:
y = (3/2)x - 1
And the only answer that has the same slope is D.
