1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solmaris [256]
3 years ago
6

Hola tengo un examen, no es necesario que me den todas las respuestas pero me seria de gran ayuda si me respondieran las que sep

an
Calcula la cantidad de gramos que hay en 12,5 mol de NaCl (Masa Na: 23,0; Cl: 35,5)
Opciones:
737,5 g de NaC
737,5 gr de NaC
738,5 g de NaC

Determinar la cantidad de moles y átomos de Calcio que hay en 120 g de Ca. (Masas Ca:40)
opciones:
3 mol de Ca y 1,8066 x 10^24
3 mol de Ca y 1,8065 x 10^24
3 mol de Ca y 1,8067 x 10^24

Para el ácido sulfúrico H2SO4 (Masas H:1,0 S: 32,01; O: 16,0). ¿Cuál es su masa molar?
opciones:
98 Kg/mol
98 gr/mol
98 g/mol

Cuántos átomos de Magnesio (Mg) hay 52 g de este (Masa Mg: 24,31)?
opciones:
12.89 x 10^23 (4 puntos)
12.88 x 10^23 (4 puntos)
12.88 x 10^24 (4 puntos)

Sabrías decir el número de moles de átomos de carbono en 513 g de C12H22O11 (Masa molar de C12H22O11: 342 g)
17 mol de átomo de C.
16 mol de átomo de C.
18 mol de átomo de C.

Ncesito ayuda no entiendo :( de verdad estaria agradecido si me ayudan
Biology
1 answer:
Verdich [7]3 years ago
6 0
Answer//
Answer//
Answer//
Passed
You might be interested in
What do fossil fuels produce
vfiekz [6]
Fossil fuel power burn carbon fuels such a coil,oil or gas to generate that drives large turbines that produces electricity by burning carbon fuel they produce large amount carbon dioxide.
3 0
3 years ago
Read 2 more answers
Researchers are studying lichens growing on trees in a forest
vesna_86 [32]

Answer:

The answer is A. Most lichen species are unaffected by the forest fire

7 0
4 years ago
Where does the H+ come from that makes ATP synthase work?
MissTica

Answer:

Chemiosmosis

Explanation:

The electrons from from NADH and FADH2 pass through the electron transport chain in the mitochondria, donating their electrons and generating a H+ buildup. This generates a proton pump to power ATP synthase. This process is called chemiosmosis.

3 0
3 years ago
Read 2 more answers
Escribe falso o verdadero punto justifica tus respuestas sean falsas o verdaderas la mujer desarrolla mayor cantidad de hormonas
zhannawk [14.2K]

Answer:Explanation:hola me respuesta es d

Si juegas free fire bn garcias por escucharme

Explanation:Explanation:hola me respuesta es d

Si juegas free fire bn garcias por escucharme

5 0
3 years ago
In the Florida map shown below, use the law of superposition to determine which rocks are oldest? Map of Florida identifying fou
tatiyna

Answer:

The answer is A

Explanation:

You can tell that rocks are older or younger depending on if other layers overlap. B is the oldest because all the others cover it, C is the second youngest because D and A overlap it. From what I could tell, when I took the test, it was either A or D, neither overlap each other so I was not sure so I guessed A and got it right. Though it could be looked at that A is smaller than D since its still growing and building.  

3 0
3 years ago
Other questions:
  • What is the relationship between oxygen debt and muscle fatigue and an elevated respiratory rate after exercise ?
    7·1 answer
  • "Consider a gram-negative pathogen isolated from marine mammals. This pathogen is subjected to a series of tests and found to ha
    12·1 answer
  • Please Help me I will give out extra points. This type of cell contains a nucleus and organelles that are surrounded by membrane
    13·2 answers
  • What process results in two complete strands of DNA from one original strand?
    15·1 answer
  • What are some of the renewable resources?
    8·1 answer
  • What purpose do specialized cells serve?
    15·2 answers
  • At a birthday party, a teen decides to inhale some of the helium from a nearby balloon using his mouth. Before the helium gas re
    13·1 answer
  • When you do something anaerobic, your body makes a natural chemical called __________ that is like emergency energy for your mus
    10·2 answers
  • What are the astronauts doing in the opening scene when storm arrives ?
    11·1 answer
  • Meiosis and fertilization are important for the survival of many species because these two processes result in —
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!