Describe the difference between elements and compounds and atoms and molecules

Chemistry

1 answer:

dangina [55]3 years ago

3 0

Answer:

element are made up of the same type of atom, while a molecule is made up of 2 or more atoms of the same species. a compound is made up of 2 or more different types of atoms of different species

Explanation:

essentialy, elements and compounds are made both of atoms, except elements are made of one type of atom, while compounds are made up of 2 or more types of atoms.

an atom is the smallest building block of matter while molecules consist of one or more atoms bonded together

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What would be the final temperature of a 73.174g sample

madreJ [45]

The final temperature is -138 °C.

Explanation:

Using the equation of specific heat

$Q = m*c* del T$

We can easily find the final temperature of a 73.174 g of copper sample. As we know that specific heat is the amount of energy required to raise the temperature of the object to 1°C.

The specific heat of copper is known as 0.387 J/g°C and the initial temperature is said as 102 °C . The mass is given as 73.174 g. The heat released is 6800 J.

Since the heat is released the Q value will be negative.

$-6800=0.387*73.174*(T_{final}-102)$