Select the best answer for the question. 6. Which of the following accurately describes the behavior of water when subjected to temperature change?
es -
1).
A. A mass of water will expand if heated from 0°C to 2°C.
B. The volume of water will increase if cooled from 3°C to 2°C.
C. A mass of water will contract if cooled from 1°C to 0°C.
O D. The volume of water will decrease if heated from 6°C to 7°C. A
oste
ent

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

the answer is definitely c.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

let that person have a turn to speak : )