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v2 Intro to Chemistry Quiz #1

Last updated almost 5 years ago

13 questions

1

Determine which of the following represent a chemical change (select all that apply)

1

Does a chemical reaction take place during a chemical change?

1

What are the reactants in the equation above?

1

What are the products in the equation above?

1

List the Elements that are present in the chemical equation above

1

In the last molecule, how many atoms of carbon are there?

1

What does the coefficient of 6 in front of water tell you?

1

In the chemical equation above, are the products the same substances as the reactants

1

In your own words, describe the law of Conservation of Matter

1

You add 20g of baking soda and 30g of vinegar into a flask. A chemical reaction happens. What do you expect the mass of the products to be?

1

After the reaction the flask felt cold. Based on the temperature change, what type of reaction is it?

1

Determinewhich of the following is an element, compound or mixture

Draggable item		Corresponding Item
water		mixture
salt water		element
chlorine		compound

1

Extra Credit. Balance the Equation - Use the space to show your work