Answer:
v = 10 cm³
Explanation:
Given data:
Mass of sample = 80 g
Density of sample = 8 g/cm³
Volume of sample = ?
Solution:
We will calculate the volume by rearranging the density formula,
Density:
Density is equal to the mass of substance divided by its volume.
Units:
SI unit of density is Kg/m3.
Other units are given below,
g/cm3, g/mL , kg/L
Formula:
d =m/v
d = density
m =mass
v = m/d
Now we will put the values in formula,
v = 80 g / 8 g/cm³
v = 10 cm³
Answer:
A= Metallic
B= Conducts electricity as a solid
C= Covalent
D=Does not conduct electricity
Explanation:
A. Because sodium is a metal and metals are good conductors
Answer: The value of Keq for the reaction expressed in scientific notation is 
Explanation:
Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios.
For the given chemical reaction:

The expression for
is written as:
![K_{eq}=\frac{[NO]^2\times [Cl_2]}{[NOCl]^2}](https://tex.z-dn.net/?f=K_%7Beq%7D%3D%5Cfrac%7B%5BNO%5D%5E2%5Ctimes%20%5BCl_2%5D%7D%7B%5BNOCl%5D%5E2%7D)


The value of Keq for the reaction expressed in scientific notation is 
Answer:
I believe the first one is correct but I think the second one would be the blood like substance. not a 100% sure sorry