1. temperature scale with water freezing at 0° and boiling at 100° meniscus 2. space occupied, measured in cubic units balance 3. an instrument for determining mass molecule 4. temperature scale with water freezing 32° and boiling at 212° volume 5. curved top surface of a liquid column Celsius scale 6. two or more atoms chemically combined Fahrenheit

4- c, because all matter stays the same no matter what. it is still there. 5- b, because matter is known as mass. 6-c because, flammability is a chemical property. malleability is changing the shape of an object.

The think of process to make something successful

According to arrhenius theory of acid and bases, an acid is a proton donor, while base donates hydroxyl ions. further, acid and base reacts to form salt and water.consider following example.hcl    +      h2o          →      cl-          +      h3o+here, hcl has donated a proton, hence it is an acid.now consider following reactionhcl      +      naoh            ↔      nacl      +        h2oin this reaction, hcl donates proton, hence it is acid. on other hand, naoh donates hydroxyl ion (i.e. hence it is a base.   

The answer will be +250