Matter- Law of Conservation, Mixtures & Definite Proportions

Matter- Law of Conservation, Mixtures & Definite Proportions

Multiple Choice

If reaction starts with 20g of reactants it should produce

• a total of 40g of products

• a total of 10g of products

• a total of 80 g of products

• a total of 20g of products

Multiple Choice

In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 

• 4g
• 5g
• 9g
• 14g

Multiple Choice

A homogeneous mixture is a combination of two substances which produce a uniform or the same appearance in their product after the mixing procedure. Which among the choices below show a uniform appearance of the product?

Multiple Choice

Mixture is classified into two: Homogeneous and Heterogeneous. All are examples of heterogeneous mixture except ________.

Multiple Choice

Classify the picture with the correct label.

• Element
• Compound
• Mixture of Compounds
• Mixture of Elements

Multiple Choice

Classify the picture with the correct label.

• Element
• Compound
• Mixture of Elements & Compounds
• Mixture of Compounds

Multiple Choice

This diagram represents a _____.

• pure substance that is a compound
• mixture of elements
• pure substance that is an element
• mixture of compounds

Multiple Choice

This picture represents which of the following?

• element
• compound
• mixture of elements
• mixture of compounds

Multiple Choice

Which of the following is an element?

• Sugar
• Salt
• Water
• Oxygen