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shtirl [24]
3 years ago
7

Please help!!!!

Chemistry
1 answer:
Crazy boy [7]3 years ago
5 0

Answer:

the answer is b

Explanation: its b because for number won ik the answer because i took the test early and made a 100 because i am

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¿ que característica tiene el conocimiento científico ?
saw5 [17]

Answer: El conocimiento científico es un saber crítico (fundamentado), metódico, verificable, sistemático, unificado, ordenado, universal, objetivo, comunicable (por medio del lenguaje científico), racional, provisorio y que explica y predice hechos por medio de leyes.

Explanation: El conocimiento científico es un saber crítico (fundamentado), metódico, verificable, sistemático, unificado, ordenado, universal, objetivo, comunicable (por medio del lenguaje científico), racional, provisorio y que explica y predice hechos por medio de leyes.

7 0
3 years ago
Which of the following is a greenhouse gas?
Komok [63]

Answer:

carbon dioxixe

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3 0
3 years ago
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How to remember all your answers for a test?
Troyanec [42]

rewrite them and say them out loud or in your head repeatedly

8 0
4 years ago
How many moles of water are in 1.23 x 10 to the 18th power water molecules
mamaluj [8]

Divide the number of molecules you have by, 6.022 x 10^23. This will give you the moles of water, or the moles of anything, since there is always 6.022 x 10^23 molecules in 1 mole of substance. 

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3 0
3 years ago
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The average cup of coffee contains about 125 mg of caffeine, C8H10N4O2. Caffeine is also found in tea, colas, and headache remed
Rashid [163]

Answer:

The answer to your question is 194 g

Explanation:

Molecular mass is the sum of all the masses of the atoms that form a molecule.

In the problem, we have C₈H₁₀N₄O₂ which means

                  atomic mass          number of atoms          total

Carbon           12                                      8                      12 x 8 = 96

Hydrogen         1                                     10                       1 x 10 = 10

Nitrogen       14                                       4                      14 x 4 = 56

Oxygen         16                                       2                      16 x 2 = 32

                                                                                                     194 g

8 0
3 years ago
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