A32.2 g iron rod, initially at 21.9 c, is submerged into an unknown mass of water at 63.5 c. in an insulated container. the final temperature of the mixture upon reaching thermal equilibrium is 59 2 c what is the mass of the water? express your answer to two significant figures

Answer : The mass of the water in two significant figures is,

Explanation :

In this case the heat given by the hot body is equal to the heat taken by the cold body.

where,

= specific heat of iron metal =

= specific heat of water =

= mass of iron metal = 32.3 g

= mass of water = ?

= final temperature of mixture =

= initial temperature of iron metal =

= initial temperature of water =

Now put all the given values in the above formula, we get

Therefore, the mass of the water in two significant figures is,

all eukaryotic cell have mitochondria : )

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).