Exercises 4 ESO Dynamics Review Exam

1. A force F=(3i-4j) acts over a 2kg particle at rest during 5s. Determine: The impulse, the final linear momentum of the particle, the final speed of the particle.
   
2. If the Earth turns around the Sun in 365 days. How long does it take to Mercury? Data: dMercury-Sun=58 mill km. dEarth-Sun=150mill km
3. An hidraulic press has a minor radious of 20 cm and a bigger radious of 1m. Which force do we need to lift a 1200 kg car?Which will be the displacement to lift it 20 cm?

Review 4 ESO Organic Chemistry

Write the formula of 

1. 2 ethyl 3 hidroxi 4 cyclopentenone 
2. 2 methyl 4 hidroxi 3 hexynoic acid 
3. 2 propyl 5 ethyl 3 hexanodiol
4. 2,4 ciclopentenodiol

Name

An organic branched compound with terminal C=O bonds has a Pm=86g/mol. It has 7% of H and a 55,8%C. Determine its empiric and mollecular formula. Draw its geometric fórmula or its s.d. formula. 

Organic formulation

Name

Write the formula of

1. 4 methyl 4 Chloro 1,3 hexanodiol
2. Buthenodioic acid
3. 1 Methyl 1,3 cyclobuthadiene
4. 2,2-dichloro 3-hidroxi-buthanoic acid

Formulation 4 ESO cont

Name:

1. H2SO3
2. CaI2
3. CuCO3
4. SiH4
5. Cl2
6. MgO2
7. Ni2O3
8. BeH2
9. Rb2SO4
10. Na3PO4
11. HNO2
12. Cu(ClO3)2
13. CoS
14. BaO
15. Fe2(SO4)3

Formulate:

1. Berylium bromide
2. Dihidrogen
3. Ozone
4. Carbon tetrachloride
5. Trioxoseleniate(IV) of hidrogen
6. Potassium peroxide
7. Iodine
8. Strontium sulphate
9. Arsane
10. Nitrogen trichloride
11. Gold(III) chlorate
12. Tin(II) oxide
13. Methane
14. Lead(II) chloride
15. Hipoiodous acid

Formulation 4ESO

Name these compounds

1. CaSO4
2. N2O5
3. CH4
4. Ag2O
5. NiCl3
6. AlH3
7. H2SO4
8. Cu (ClO4)2
9. BaF2
10. N2
11. NaO

Formulate

1. Trioxoseleniate(IV) of hidrógen
2. Chlorous acid
3. Magnesium oxide
4. Water
5. Berilium peroxide 
6. Rubidium sulphate 
7. Tetraoxoiodate (VII) of copper(II)
8. Silane
9. Sodium permanganate 
10. Hidrochloric acid
11. LiF
12. Fe2O

Formulation 4 ESO

Name these compounds:

1. Cu2O
2. AlF3
3. SiH4
4. PtO
5. AgCl
6. NiI2
7. Ba3N2
8. I2O5
9. KH
10. CaBr2
11. I2O7
12. H2Se

Write the formula of

1. Methane
2. Iron(II) fluoride
3. Hidrohloric acide
4. Diclorine Trioxide
5. Gold (III) nitride
6. Copper (II) oxide
7. Aluminium iodide
8. Magnesium hydride
9. Hidrofluoric acid
10. Lithium oxide
11. Ammonia
12. Aluminium oxide

Ideal gases equation 4ESO

When we study reactions with gases at

condiciones which are noticias ideal, we must use the ideal gases equation:

PV=nRT

P=pressure in atm. 1atm=760mmHg

V=volume in L

n=n of moles, If we have mass n=m/Pm

R=0.082 atm•l/Kmol 

T=temperature in K (T°C+273.15)

Exercises:

1. Determine the volume of a)3 mol of gas at 1.5 atm and 30°C b)10 g of O2 at 500mmHg and 100°C c
2. Determine the number of moles of 5L of gas at 50°C and 1000mmHg. 
3. Determine the temperature of 56g of N2 at 380mmHg in a 20L recipient. b)2 mol of gas at 5atm in a 10L recipient
4. Determine the pressure of: 5 mol of gas at 25°C in 100L b) 1 g of H2 at 30°C in a 5L recipient.
5. A 5L bottle has H2 at 2.5 atm and 50°C. A spark makes it burn with air. How much air will we need at 30°C and 1atm How much water will we produce?

Data: Pm/ g/mol = H=1, O=16, N=14

Consejo seguridad nuclear

For this activity You must visit Visita Virtual CSN

• What does radioactivity consist of?
• What are the three main types of radioactive emmisions?
• Explain the interior of a nuclear reactor and the safety equipment. 
• What can they do With the nuclear waste?