A coordination complex is made up of . (Choose one) Selected IncorrectC. a transition metal center and alkaline earth metal ligands surrounding it. Answers: CorrectA. a Lewis acidic metal center with Lewis basic ligands surrounding it. B. an Arrhenius basic metal center with Lewis acidic ligands surrounding it. C. a transition metal center and alkaline earth metal ligands surrounding it. D. a Lewis basic metal center with Lewis acidic ligands surrounding it.

a Lewis acidic metal center with Lewis basic ligands surrounding it.

Explanation:

A lewis acid is a chemical specie capable of accepting a lone pair of electrons while a lewis base is a chemical specie capable of donating a lone pair of electrons.

In a coordination compound, a lewis acid(central metal atom/ion) accepts electron pairs from lewis bases (ligands). Any chemical specie called a ligand must possess at least one electron pair available for coordinate covalent bonding.

Coordination compounds are usually formed between transition metal atoms/ions and neutral molecules having lone pairs of electrons or anionc species .

beta decay is the answer

(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