Copper (Cu) is a chemical element.
Iron is more reactive than copper because it is higher up on the activity series. There is more reasons to back this up such as outer electrons more tightly bound than others. Those who have less tightly bound electrons are more reactive. Hope this helps you.
Door county is 483 square miles.
in the summer, there is more humidity and it causes the wood to swell. When it is cold outside, the swelling goes down and it is easier to close the door without it rubbing against the frame. Heat expands everything, the doors and house included. When they expand the door will rub against the frame. When it's cold things will contract or constrict and therefore the door and house will shrink and be easier to open. ( The house will shrink but since there is a space where the door is the house won't shrink inwards at the door frame but when it expands it will close the gap of the door frame).
Yes. A hurricane could easily break a sliding glass door.
True. If the prehung entry door is closed completely, and there is no screen in the storm door, then the storm door will not close and latch on its' own because there is an air cushion that is created between the 2 doors. Essentially, the storm door is closing faster than the air can escape between the 2 doors, which means eventually the air pressure built up will be come stronger than the doors momentum in closing, so this air pressure will stop the door before it has a chance to close completely.
Element
Element
If all the components are made from pure copper - yes, all is from the chemical element copper.
Both are mixtures.
it is a mixture
Metals can be elements, yes, however, most that you would see on a day to day basis i.e. cookware, door handles, etc. Most of these metals are alloys, which are a mixture of several elemental elements. For example, brass, a common door handle metal, is a mixture of zinc and copper. So, to find out the elemental metals, look at a periodic table.
Doors vary in composition and are rarely composed of a single element. Many doors are made of wood, which is not an element but a mixture of compounds. The primary component is cellulose, a compound of carbon, hydrogen, and oxygen. Doors may also be made of various metals such as aluminum, iron, steel (a mixture of iron, carbon, and possibly other metals), and galvanized metal (metal coated with a layer of zinc).
Door is not a compound word.
A compound word that contains the word door is doorbell.
No, it is not.
I only know one soz and the compound word that starts with door is doormat
No, copper is too soft and maleable to be used for something like a door know. The most common metal for doorknobs is brass which is an alloy of copper and zinc