Answer:
Statement 1 can be matched with option f (Van der waal forces)
Statement 2 can be matched with option b (Liquid crystal)
statement 3 can be matched with option e (Thermal expansion)
Statement 4 can be matched with option g (Viscosity)
Statement 5 can be matched with option b (Fractional distillation)
Statement 6 can be matched with option a (Diffusion)
Statement 7 can be matched with option d (Miscible)
Explanation:
- Van der waal forces are weak inter-molecular bonds found between covalent molecules e.g molecules of graphite, noble gases etc
- Liquid crystals are substances that behave like liquids and its molecules orientate itself like a crystal (solid). They can be referred to as LCs.
- Thermal expansion is a phenomenon where by matter changes in shape, volume and area due to a change in temperature.
- Viscosity is a term used to describe a fluid's resistance to flow. It is also used to describe the internal friction that a moving liquid experiences. Oil is more viscose than liquid water
- Fractional distillation is a separation technique used in separating two or more miscible liquids of close boiling points. For example petrol and diesel oil can be separated using fractional distillation. An industrial application of this technique is Fractional distillation of crude oil where crude oil is separated into its components
- Diffusion is the movement of dissolved particles, gases, liquid from a region of higher concentration to a region of lower concentration until there is a equal balance. This can occur when you spray a perfume in one end of a room. You will get to smell the perfume at the other end after some time. Diffusion is fastest in gas as compared to liquids and solids.
- Miscible is a word used to describe liquids forming a homogeneous mixture when dissolved in each other. Miscibility is factor to be considered when separating mixture.
Answer:
0.0002
Explanation:
First you have to solve exponents first, so you solve 10 to the power of negative 4 which is 0.0001 and now you have 2.0x0.0001 and that equals 0.0002
1kg = 1000000000 micrograms
I hope it helps you ;)
To solve this problem we will apply the concepts related to gravitational potential energy.
This can be defined as the product between mass, gravity and body height.
Mathematically it can be expressed as
Therefore the change in the internal energy of the system is 255.78
Answer:
Name one organ or organ system in the human body that relies upon voltage to function properly.
BRAIN
Explanation:
The brain works with the passage of signals in form of neurons to all part of the body. The brain interprets every signals sent from all part of the body and respond by passage of signals in neuron form to deliver to the recipient part of the body
