Chemistry

Chemistry, 16.07.2019 23:00, krudisill

Which of these is an example of a chemical change? a) cutting bread b) spreading peanut butter c) digesting a sandwich d) stirring jelly

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Computers and Technology, 24.06.2019 00:00, babysisjessica1

For the following example of making a peanut butter and jelly sandwich, identify which are inputs, processes, or outputs: bread scooping and spreading peanut butter plate scooping and spreading jelly finished sandwich putting two pieces of covered bread together dirty plate crumbs

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Chemistry, 04.07.2019 23:00, Santos7446

Iv'e got a long one question one which of these is a chemical property of a substance? a. reactivity b. color c. boiling point d. melting point question two which of these is true of a chemical reaction? a. energy is always released b. energy is always obtained c. energy is either released or absorbed d. energy is not transferred question three which of these is an example of a chemical change? a. leaving cheese out to get moldy (this one prob) b. smelling sprayed perfume c. feeling ice melt on your skin d. crushing ice /w hammer question four which of these is an example of a chemical change? a. exploding fireworks b. grinding powder c. melting cheese d. ironing a shirt question five which of these is an example of a chemical change? a. cutting bread b. spreading peanut butter c. digesting a sandwich (prob this one) d. stirring jelly

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Chemistry, 07.07.2019 06:30, dinecree

Halp ! 1) which of these is a chemical property of a substance? 1-reactivity 2-color 3-boiling point 4-melting point 2) which of these is true of a chemical reaction? 1-energy is always transferred from reactants to products. 2-energy is always transferred from reactants to reactants 3-energy is transferred between products and reactants. 4-energy is not transfered. 3) which of these is an example of physical change? 1-melting a substance 2-breaking chemical bonds 3-forming chemical bonds 4-nuclear decay 4) which of these is an example of a chemical change? 1-cutting bread 2-spreading peanut butter 3-digesting a sandwich 4-stirring jelly 5) which of these is an example of a physical change? 1-gasoline burning 2-metal denting 3-iron rusting 4-silver tarnishing

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Biology, 13.10.2019 04:20, garzamatt7

Is it a? which of these is an example of a chemical change? digesting a sandwich. cutting bread. stirring jelly. spreading peanut butter.

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