Chemistry, 26.07.2019 02:30 cindykulei3719
1. why does putting baking soda on a fire put it out? a. the baking soda cools the fire off so it can’t burn. b. co2 gas is produced reducing the amount of heat. c. the fuel is covered and not available to the fire. d. co2 gas is produced cutting off the flow of oxygen. 2. why does baking bread require a constant input of heat from the oven? a. it is a physical reaction. b. it is an endothermic reaction. c. it is a chemical reaction. d. it is an exothermic reaction.
Answers: 1
Chemistry, 22.06.2019 05:30, maddyjones4172
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 3
Chemistry, 22.06.2019 06:00, citlalli30
An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
Answers: 2
Chemistry, 22.06.2019 06:30, irvinbhangal2
What effect might melting sea ice have for people who live in coastal areas?
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Chemistry, 22.06.2019 10:00, 2019reynolds
Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.
Answers: 1
1. why does putting baking soda on a fire put it out? a. the baking soda cools the fire off so it c...
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