WILL MARK BRAINLIEST The freezing point of water is 0.00°C at 1 atmosphere.

How many grams of cobalt(II) chloride (129.8 g/mol), must be dissolved in 228.0 grams of water to reduce the freezing point by 0.450°C ? Refer to the table below for the necessary boiling or freezing point constant.

Solvent Formula Kb (°C/m) Kf (°C/m)

Water H2O 0.512 1.86

Ethanol CH3CH2OH 1.22 1.99

Chloroform CHCl3 3.67

Benzene C6H6 2.53 5.12

Diethyl ether CH3CH2OCH2CH3 2.02

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.