Answer:
24 atoms makes altogether a molecule of glucose
Because Electrons have a negative charge
Answer:
4
Explanation:
Si has atomic number 14 so the electronic configuration 2,8,4
An alloy is a mixture of two or more metals which is produced with a specific proportion between metals. So, if the proportion is changed the physical characteristic would be changed as well. For example, brass musical instruments are made of brass which is a mixture (an alloy) of zinc and copper in a specific proportion. If you change a proportion, you will change the physical characteristic of brass musical instruments, and a sound they produce will be different.
Heat needed=mcθ
=7×0.031×(42-17)
=5.425cal
