NotYourStudent

12.01.2020 • 

Chemistry

Chemical reactions
occur only in living organisms
create and destroy atoms
only occur outside living organisms
produce new substances
2. what does the symbolin a chemical equation mean? heat is supplied to the reaction.
a catalyst is needed.
yields
precipitate
3. a skeleton equation does not show which of the following?
the correct formulas of the reactants and products
the reactants on the left, the products on the right
an arrow connecting the reactants to the products
the relative amounts of reactant

Ответ:

jskdkfjf

14.01.2022

Chemistry

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I put in the answers over there and they weren't all right according to the question.
for number 1 is was D(you got that right), 2 was A.heat is supplied to the reaction(it sowed a triangle symbol, not a yield one). 3 was D(you got this one right). 4 was D. the reaction is reversible. 5 was A.1,3,1, 3 

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Ответ:

maskythegamer

27.02.2021

Chemistry

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there was some concern about the effects of high altitude on humans. and the rooster was included as a further control because, while it was also a bird, it did not fly at high altitudes. the balloon and its animal passengers lifted off on.

explanation:

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