Rate of chemical reactions
"Rate" of reaction is defined as...
What is the speed of the reaction.
Anything that has mass and takes up space
What is matter
Heat is absorbed in what type of reaction?
What is Endothermic Reaction?
The equation shown below is this type of chemical reaction: 2Na + Cl2 ---> 2NaCl
What is a synthesis or combination reaction?
The product is purple. Is there enough information/evidence to prove there was a chemical reaction?
No
It can change based on the concentration, temperature, and catalysts involved in the chemical reaction.
How can the rate of a chemical reaction change?
Substances at the beginning of an equation = _________________ new substances at the end of an equation = _________________
What is reactants; products
Heat is released in what type of reaction?
What is exothermic reaction
This equation below is this type of reaction chemical reaction: H2O2 + heated ----> H2(g) + O2.
What is decomposition?
What evidence does bubbles forming in a beaker reveal?
What is a gas is forming?
An increase in temperature will usually cause the rate of reaction to ________________.
What is increase?
Which of the following is an example of a chemical reaction: melting ice, burning wood, or boiling water?
What is burning wood?
An intermediate phase between reactants and products in a chemical reaction
What is the Activated Complex?
The equation shown below is this type of chemical reaction: CH4 + 2O2 ---> CO2 + 2H2O
What is combustion?
A solid that forms from solution during a chemical reaction is called a ______________.
What is a precipitate?
The reaction between solid zinc metal and hydrochloric acid vs. powdered zinc and hydrochloric acid have different rates because of their difference in...
What is surface area?
______________________ occur when bonds break and new bonds form.
What are chemical reactions?
What is the minimum amount of energy needed to start a chemical reaction?
What is activation energy?
The equation shown below is an example of this type of reaction: CaSO4 + 2K ---> K2SO4 + Ca
What is a single replacement reaction?
A change that alters the form or appearance of a substance without changing the substance itself is called what?
What is Physical Change?
This is the name of a substance that can be added to speed up a chemical reaction, and does so by lowering the what?
What is a catalyst and the activation energy.
What is collision theory? Including the two requirements for a reaction occur.
What is that particles must collide with the correct orientation and enough energy in order for a reaction to occur.
The heat of reaction is defined as...
What is the difference in potential energy of the products and reactants?
This reaction occurs when two elements in different compounds change places with each other to form two new compounds.
What is a double replacement?
Give three examples that a chemical reaction has taken place.
What is temp. change, color change, odor change, formation of a precipitate, formation of a gas, light?