Physics, 28.09.2019 02:30, delgadillogiselle711
Maria and miquel were enjoying the fireworks when they got into a chemistry argument. maria insisted that the fireworks were the result of a chemical reaction. miguel disagreed. what would you tell them to solve this argument.
a)
it is a change of state, solid to gas, due to the addition of energy.
b)
it was a physical reaction since the fuse was lit and heat was produced.
c)
the color changes and the release of energy indicate a chemical reaction.
d)
it is an endothermic reaction because energy was added; therefore it is a chemical reaction,
Answers: 1
Physics, 22.06.2019 07:00, gracie18383
We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation
Answers: 3
Physics, 22.06.2019 16:00, 6FOOT
The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.
Answers: 2
Maria and miquel were enjoying the fireworks when they got into a chemistry argument. maria insisted...
Mathematics, 27.03.2020 21:27
History, 27.03.2020 21:27
Mathematics, 27.03.2020 21:27
Mathematics, 27.03.2020 21:27
Geography, 27.03.2020 21:27