U1 L2 Speed of chemical reactions Prep 3 Science 2nd term

Put true or false:
The speed of chemical reaction decreases by increasing the concentration of reactants

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The speed of reaction between oil and caustic soda is very fast

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The speed of reaction between oil and caustic soda is ...............

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The speed of chemical reaction inside the human body in presence of ..................

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The measuring unit of concentration rate is ................

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.............. enzyme is present in sweet potatoes

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The rate of breaking down of hydrogen peroxide increases by adding ..............

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The substance that changes the rate of a chemical reaction without being changed is called .................

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The rate of breaking down of hydrogen peroxide increases by adding copper oxide

Put true or false:
The rate of breaking down of hydrogen peroxide increases by adding copper oxide

Put true or false:
The rate of breaking down of hydrogen peroxide increases by adding copper oxide

Put true or false:
The rate of breaking down of hydrogen peroxide increases by adding copper oxide

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Put true or false:
Amylase enzyme is present in sweet potatoes

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The ceramic cells in the catalytic converter leads to ...............

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At the beginning of the reaction, percentage of reactants concentration equals ..........

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The chemical substance that controls and organizes most of body vital activities is the .................