Answer: A new model of the atom that described electrons as being in a cloud
Explanation:
Answer:
6g/mL
Explanation:
The density, which is the mass per unit volume of an object, can be calculated using the formula;
D= m/v
Where; D = density (g/mL)
M = mass of substance (g)
V = volume (mL)
In this question, the object's mass = 15g, volume of water= 2.5 mL, d =?
Therefore,
Density = 15/2.5
Density = 6 g/mL
The object's density is 6g/mL
Co2(s). Co2 Solid Solids have definite shape and definite volume. This is because the particles that build up a solid are crammed in a fixed, closely packed geometric arrangement.
Fluids (gases or liquids) do not have definite shape and occupies the shape of the containers. While gases assume the volume of the container, liquids occupy part of it.In aqueous solutions, the particles lose their shape and volume and occupies the shape of its solvent (water). The volume is also modified accordingly. CO2(s) has definite shape and definite volume. and the correct answer would be Co2 solid.
<h2>Work done = mgh </h2>
Explanation:
- In this case, while lifting the book we are working against the force of gravity.
Using the Newton's laws, we can find the force F required for lifting the book having mass (m) and acceleration due to gravity (g) that is ;
and, the change in the position of the book that is Δx (Height)
→ Δx = Final position - Initial position
which is only the height, then the amount of work done will be calculated by :
W= mgh
m = Mass of the Body
g = Acceleration due to Gravity
h = Height of Body being displaced
Answer:
.094 M
Explanation: 0.32molNaCl/ 3.4L = .094M