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
zhenek [66]
4 years ago
9

One difference between plant and animal cells is that animal cells do not have

Chemistry
2 answers:
aev [14]4 years ago
5 0
Plant cells have cell walls and a bigger vacuole than animal cells
rewona [7]4 years ago
3 0

Chloroplasts.

Plants use chloroplasts to create their own energy by using sunlight.

You might be interested in
Which element is the least attracted in a chemical bond?
Ilya [14]
The answer is Nitrogen.
5 0
3 years ago
The oxidation of sulfur dioxide by oxygen to sulfur trioxide has been implicated as an important step in the formation of acid r
Igoryamba

Answer:

The value of the equilibrium constant K_p at this temperature is 3.42.

Explanation:

Partial pressure of the sulfur dioxide =p_1=0.564 atm

Partial pressure of the oxygen gas =p_2=0.102 atm

Partial pressure of the sulfur trioxide =p_3=0.333

2 SO_2(g) + O_2(g)\rightleftharpoons 2 SO_3(g)

The expression of an equilibrium constant is given by :

K_p=\frac{(p_3)^2}{(p_1)^2\times p_2}

K_p=\frac{(0.333 atm)^2}{(0.564 atm)\times (0.102 atm)}=3.42

The value of the equilibrium constant K_p at this temperature is 3.42.

7 0
4 years ago
In calculating the relationship between the amount of heat added to a substance and the corresponding temperature change, the sp
otez555 [7]

Answer:

C.

Explanation:

Specific heat capacity of a substance can be defined as the amount of heat a gram of the substance must lose or absorb in order to change its temperature by a degree Celsius. It is measured in Joules per kilogram per degree Celsius (J/kg°C).

Generally, the specific heat capacity of water is 4.182J/kg°C and is the highest among liquids.

Heat capacity or quantity of heat is given by the formula;

Q = mcdt

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of the substance.

dt represents the change in temperature.

Hence in calculating the relationship between the amount of heat added to a substance and the corresponding temperature change, the specific heat capacity is usually represented by the symbol C.

6 0
3 years ago
A scientist measures the standard enthalpy change for the following reaction to be 81.1 kJ :2CO2(g) + 5 H2(g)C2H2(g) + 4 H2O(g)B
posledela

<u>Answer:</u> The enthalpy of the formation of CO_2(g) is coming out to be -410.8 kJ/mol.Z

<u>Explanation:</u>

Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as \Delta H^o

The equation used to calculate enthalpy change is of a reaction is:  

\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f(product)]-\sum [n\times \Delta H^o_f(reactant)]

For the given chemical reaction:

2CO_2(g)+5H_2(g)\rightarrow C_2H_2(g)+4H_2O(g)

The equation for the enthalpy change of the above reaction is:

\Delta H^o_{rxn}=[(1\times \Delta H^o_f_{(C_2H_2(g))})+(4\times \Delta H^o_f_{(H_2O(g))})]-[(2\times \Delta H^o_f_{(CO_2(g))})+(5\times \Delta H^o_f_{(H_2(g))})]

We are given:

\Delta H^o_f_{(H_2O(g))}=-241.8kJ/mol\\\Delta H^o_f_{(H_2(g))}=0kJ/mol\\\Delta H^o_f_{(C_2H_2(g))}=226.7kJ/mol\\\Delta H^o_{rxn}=81.1kJ

Putting values in above equation, we get:

81.1=[(1\times (226.7)})+(4\times (-241.8))]-[(2\times \Delta H^o_f_{(CO_2(g))})+(5\times (0))]\\\\\Delta H^o_f_{(CO_2(g))}=-410.8kJ/mol

Hence, the enthalpy of the formation of CO_2(g) is coming out to be -410.8 kJ/mol.

8 0
3 years ago
If you were to reach the location in 316 minutes, what is your average speed in
nirvana33 [79]

The average speed is zero if our frame of reference is the rotation of the Earth because the relative distance with respect to the earth is zero.

Average speed = 0.26 km/hr

total time = 316 minutes

distance = speed * time

                = 8.3 * 5*1/30 = 8.3 *1/6

                = 1.38 km

Average speed = total distance / total time

                             1.38 km / 5.27

                             = 0.26 km/hr

Distance is described to be the importance or length of displacement among positions. observe that the gap between two positions is not the same as the distance traveled between them. Distance traveled is the whole period of the path traveled among positions. Distance traveled isn't a vector.

There are three foremost styles of average: imply, median, and mode. each of these strategies works barely otherwise and frequently results in slightly distinct ordinary values. The suggest is the maximum usually used commonly. To get the mean cost, you add up all of the values and divide this general by means of the variety of values.

Learn more about average speed here:-brainly.com/question/4931057

#SPJ4

4 0
2 years ago
Other questions:
  • How many grams of aluminum will be produced if 21.3g of Ba react with 19.7g of Al2 (SO4)3
    14·1 answer
  • The positive crankcase ventilation (PCV) system helps reduce _______ exhaust gas emissions. A. CO2 (carbon dioxide) B. HC (hydro
    7·1 answer
  • At the end of mitosis the cells produced are identical to each other is it True or False
    14·2 answers
  • Wade thinks it would be really cool to become a radiologist. Which two skills are important for him to have in order to excel in
    9·1 answer
  • Solid NaBr is slowly added to a solution that is 0.073 M in Cu+ and 0.073 M in Ag+.Which compound will begin to precipitate firs
    7·1 answer
  • 1. Ethers show :
    11·1 answer
  • Calculate the mass of beryllium and phosphorus in 39.8g of beryllium phosphide
    8·1 answer
  • How many grams of carbon are there in 706 grams of acetic acid
    11·1 answer
  • (giving brainiest) solve please! dont copy I've looked up everything ill know if you copied something!
    12·1 answer
  • The atomic number of neutrons in oxygen
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!