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Vlad1618 [11]
3 years ago
10

What group of plants was found in the mesozoic but not in the paleozoic?

Chemistry
1 answer:
const2013 [10]3 years ago
8 0
Angiosperms didn't exist until the late Mesozoic era..
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Which word equation represents a neutralization reaction
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Base+salt > acid +alkali > neutralization i think this is the reaction
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3 years ago
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Drawing a conclusion derived from knowledge of an established principle is called deductive reasoning.
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Answer:

the answer would be true

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if 0.3 moles of carbon reacts completely with 0.3 moles of molecular oxygen, what is the yield in Percent of 6.6 g of CO2 are fo
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Answer is:<span>the yield is 50%.
</span>
Chemical reaction: C + O₂ → CO₂.
n(C) = 0.3 mol; amount of substance.
n(O₂) = 0.3 mol.
From chemical reaction: n(C) : n(CO₂) = 1 : 1.
n(CO₂) = 0.3 mol.
M(CO₂) = 44 g/mol; molar mass of caron(IV) oxide.
m(CO₂) = n(CO₂) · M(CO₂).
m(CO₂) =0.3 mol · 44 g/mol.
m(CO₂) = 13.2 g; mass of carbon(IV) oxide.
the yield = 6.6 g ÷ 13.2 g · 100%.
the yield = 50%.
8 0
3 years ago
What's a hypothesis for Which fruit contains the most vitamin c?
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Answer: I hypothesize that kiwi contains the most vitamin C

Then after that you test your hypothesis by comparing fruit that contains vitamin C in an experiment.
4 0
3 years ago
What are the strengths in the bonds of potassium bromide
DIA [1.3K]

Answer: Potassium Bromide (KBr) The Ionic bond formed between Potassium and Bromine is created through the transfer of electrons from Potassium (metal) to Bromine (nonmetal).

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