Can you help because it is very urgent

Explanation:

1. C. It can explode and burn in the presence of oxygen would be a chemical property of hydrogen.

2. A chemical property of propane is its combustibility. This can warm up houses and be used in a grill to cook food.

3. 1) Physical, because this is a phase change.

2) Physical because the properties of the gold isn't changed.

3) Chemical, the bubbles show us that a chemical reaction is happening.

4) Chemical, rust is an example of a chemical change in the iron.

5) Physical, the copper does not chemically change, it only bends.

4. a) Brass is a homogenous mixture because it combines copper and zinc.

b) Air is a homogenous mixture because it mixes multiple elements

c) Table sugar, or sucrose, is a compound because it’s formed when two or more elements are joined together.

d) Because its composition is not uniform throughout, orange juice is a heterogeneous mixture.

e) Tin can be found on the periodic table therefore it is an element.

5. It strips the hair and makes it brittle

the supreme court plays a big role in government. the constitution gives them ability to check the president and the congresses actions and dictate if their actions are allowed by the constitution or not.

hope this .

i truly dont know the answer wait i do its 1,3,4