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The surface tension in a cup of water is caused by _______________________.
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
The _________________ is a unit of force.
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
In the compound H2O, the electrons in the bonds are unequally shared between oxygen and hydrogen, forming __________________.
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
A basic sample has pH range ______________________.
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
Which of the following changes is chemical rather than physical?
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
Which of the following factors would not speed up a chemical reaction?
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
Which of the following conditions would likely cause the activation energy to be high?
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
Which of the following is an example of a chemical change?
attractive forces between the water molecules
between 7 and 14
wood is burned
making the reactant particles larger
newton
polar bonds
atoms are not close together
baking soda in water
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