Describe two observations you might make when a physical change occurs
Plz help! The best answer will be marked as brainliest!Make a funny sentence of alloys for MagnesiumHere
mobeteOctober 23, 20213 Comments
Calculate the molarity of a solution that contains 724.8 g CuSO4 in 332.6 mLwater. (The molar mass of CuSO4 is 159.60 g/mol.)
Ant5784tgiOctober 23, 20214 Comments
I need the answer asap
mobeteOctober 23, 202112 Comments
1. a metal with 3 valence electrons, used in cans.2. a period 3 element that will not react naturally.3. has 5 valence
PoolwaterisgrossOctober 23, 20213 Comments
At what temperature in K would CO2 gas have to be if 1.5 mol occupies a 5Lcontainer at 777 kPa?
Montgomerykarloxc24xOctober 23, 20216 Comments
This Post Has 4 Comments
Well you could observe a color change or even a change in smell
answer: a tank of height h is filled with water and sits on the ground. water squirts from a hole at a height y above the ground and has a range r. for two y values, 0 and h, r is zero. determine the value of y for which the range will be a maximum.
10 years is the answer
1. Its physical properties change by an increase or decrease of things.
2. The chemical or genetic makeup of it, sometimes a type of instrument
(not music a tool in this term) to observe the chemicals making up what happened.
Example for 1: A larvae of a mosquito is a very tiny organisms found in dirty water like lakes, rivers, swamps etc (not slat). Over a certain time period they mature and have physical changes, called stages. These physical changes can be observed with the naked eye.
Egg to Mosquito.
Example for 2: When someone with natural Black hair bleaches their hair that's a physical observation you can see in the process, but to see what's really happening you need special equipment.
(Another example if the one above doesn't help)
When there's oxygen for an rat to breathe in, its blood cells are healthy and working properly giving it a red look. But if there's a shortage or no oxygen the blood cells will start dying out in a limited time. Slowly as there's no oxygen in the air for the rat to breathe its veins starts showing. That blue you see, well yes that's why whenever you see someone whose been dead for awhile they have hints of blue on them.
Hope this helps