Question
ng is a chemical change in the following list? read C. grinding of wheat to make flour s in the sunshine D. using modeling clay to make a toy ng would NOT be a physical change? to make ice cubes C. boiling water for ramen of aluminum foil D. burning gasoline in a lawnmower e formation of fog on a cool humid day, what type of event nge in oxygen C. a physical change in water ge in air D. a chemical change in water nd formed in a mold to make a piece of jewelry,what type nge C. evaporation D. a physical change is a physical change? a fireplace C. iron rusting D. digesting food is an example of a homogeneous mixture? oil C. salt dissolved in water D. gasoline mixed with water s a compound? gauge C. aluminum (Al) in a can aker D. gold (Au) in a ring
Solution
4.4
(257 Votos)
Marília
Mestre · Tutor por 5 anos
Resposta
1. D. burning gasoline in a lawnmower2. D. the formation of fog on a cool humid day3. C. a physical change in water4. D. a physical change5. C. iron rusting6. C. salt dissolved in water7. C. aluminum (Al) in a can
Explicação
## Step 1The first question asks which of the given options is a chemical change. A chemical change is a process where one or more substances are altered into one or more new and different substances. In the given options, the process of burning gasoline in a lawnmower is a chemical change because it involves the transformation of gasoline into different substances.## Step 2The second question asks which of the given options would NOT be a physical change. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The formation of fog on a cool humid day is a physical change because it involves the change of state of water from gas to liquid.## Step 3The third question asks what type of event is the formation of fog on a cool humid day. As mentioned in step 2, this is a physical change because it involves the change of state of water from gas to liquid.## Step 4The fourth question asks what type of change is the formation of a piece of jewelry in a mold. This is a physical change because it involves the change of shape of the material, but not its chemical composition.## Step 5The fifth question asks what is a physical change. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. Iron rusting is not a physical change because it involves the transformation of iron into a new substance, rust.## Step 6The sixth question asks which is an example of a homogeneous mixture. A homogeneous mixture is a type of mixture in which the components are uniformly distributed throughout the mixture. Salt dissolved in water is an example of a homogeneous mixture because the salt is evenly distributed throughout the water.## Step 7The seventh question asks what is a compound. A compound is a substance formed when two or more chemical elements are chemically bonded together. Aluminum (Al) in a can is not a compound because it is a single element, not a combination of different elements.