Go to the Quizzes Page Matter and its Properties 0% 6 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 What are the starting materials in a reaction? subscript coefficient reactants product 2 / 20 Evidence of a chemical reactions is anything that shows - a change in the state of matter interaction between 2 gases a new substance has formed a solid dissolved in a liquid 3 / 20 Examples of Chemical Changes Burning Evaporating Combustion Rusting 4 / 20 This substance can be separated by physical means Pure Substances Compounds Mixtures Elements 5 / 20 Which statements are TRUE about mass? is a physical property is how much space an object takes up is a chemical property is the amount of matter in an object 6 / 20 Which formula is used to calculate the density of an object? density = volume − mass density = mass + volume density = mass / volume density = volume / mass 7 / 20 In the presence of water, iron nail reacts with oxygen in the air to produce a brownish substance called rust. Which statement is TRUE about rusting? Rusting is a chemical change because the identity of the substance doesn't change. Rusting is a chemical change because there is formation of a new substance. Rusting is a physical change because the identity of the substance doesn't change. Rusting is a physical change because there is formation of a new substance. 8 / 20 Which of the following is the best description of the results of a chemical reaction? The substance changes from liquid to solid at a low temperature The reaction can be reversed to get back the original substance The substance seems to disappear after dissolving in water A new substance with different properties is formed 9 / 20 A material whose particle composition allows heat & electricity to pass through it easily are described as having a high ___________. Weight Conductivity Hardness Density 10 / 20 What is the BEST way to find the volume of the box shown in the next image? using displacement method using a balance using a formula ( l × w × h ) using a graduated container 11 / 20 The relationship between mass and volume is called ----------------- physical property weight gravity density 12 / 20 Examples of Physical Changes Grinding Burning Freezing Evaporating 13 / 20 Rust forming on a piece of iron is an example of which of the following: A chemical change because oxygen atoms from the atmosphere bonded with the iron atoms The natural process of decay as metallic ions age A violation of the laws of physics because new mass has been created A physical change because the process can be reversed 14 / 20 Combining substances to form new substances is called .............. Physical reaction Exothermic reaction Chemical reaction Endothermic reaction 15 / 20 What is the volume of the stone? V stone = 20 mL / 80 mL = 0 . 25 V stone = 100 mL − 80 mL = 20 mL V stone = 80 mL / 20 mL = 4 V stone = 100 mL + 80 mL = 180 mL 16 / 20 Dissolving salt is a ............... Physical change Flammability Production of new substances Chemical change 17 / 20 Maha was given a shiny golden ring as a gift for her graduation. Maha was confused about whether the ring was made of gold or plated gold. Which practical method can be followed to determine the nature of the ring without deforming it? Calculate the density of the ring to know if it is made of real gold or plated gold. Measure the melting point of the ring to know if it is made of real gold or plated gold. Observe the color of the ring to know if it is made of real gold or plated gold. Measure the volume of the ring to know if it is made of real gold or plated gold. 18 / 20 Which of the following statements is true? Freezing water is an example of a chemical reaction because a new substance is formed and the process cannot be undone Melting ice is an example of a chemical reaction because a new substance is formed and the process cannot be undone Burning paper is an example of a chemical reaction because a new substance is formed and the process cannot be undone Cutting paper is an example of a chemical reaction because a new substance is formed and the process cannot be undone 19 / 20 Consider a solid and liquid object having the same volume. Why a solid object has a greater density than a liquid object? because the particles of a solid are closely packed in a smaller space because the solid has a fixed volume because the liquid can flow because the particles of a liquid are closely packed in a smaller space 20 / 20 The displacement method is followed to determine the ................ of a solid that has an irregular shape. density mass volume shape Your score is 0% Restart quiz Go to the Quizzes Page