The diagram below shows a laboratory setup. In the diagram, flask A contains a mixture of two liquids. This flask is being heated, which is causing alcohol in the mixture to evaporate and recondense into flask B. Flask B contains pure liquid alcohol. What does this demonstrate? A. Mixtures form when pure substances chemically react to form new substances. B. Liquids must be heated until both substances are gases in order for a mixture to form. C. Mixtures can be separated into their component parts through physical processes like boiling. D. Liquids can only form mixtures with other liquids.

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.

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58750.08068 is the answer i think

i'm pretty sure it is letter c.) car

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied