Divide 180kg and 90m3 and your density will be 2kg/m3
Hope that helps, pls double check tho :)
The answer is ligand: a molecule or ion that can bond to a (central) metal ion (to form a complex);
NH3: Lewis base and Cu2+: Lewis acid (need both for mark);
<span>each NH3/ligand donates an electron pair (to Cu2+); forming coordinate covalent/dative covalent bond; i hope this help you.</span>
Answer:
The concentration of dilute solution is 0.72M
Explanation:
According to the given question
V1=30 ml
S1 = 12 M
V2= 500 ml
then S2 =?
we all know that V1S1=V2S2
or S2= V1S1÷V2
or S2 = 30×12÷500
or S2= 360÷500
or S2 =0.72 M.
The concentration of dilute solution is 0.72 M
Answer:
<h3>Density = 0.5 g/cm³</h3>
Explanation:
Density of a substance can be found by using the formula

From the question
mass = 32g
To find the density we must first find the volume of the block
From the question the block is a cuboid
Volume of cuboid = length × width × height
length = 8 cm
width = 4 cm
height = 2 cm
Volume of block = 8 × 4 × 2 = 64 cm³
Substitute the values into the above formula and solve for the density
That's....

We have the final answer as
Density = 0.5 g/cm³
The block will float because it's density is less than the density of water which is
1 g/cm³
Hope this helps you