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
Mumz [18]
3 years ago
12

Can someone help me please :(

Chemistry
2 answers:
topjm [15]3 years ago
8 0
I think the answe is C
ICE Princess25 [194]3 years ago
6 0
One liquid disappears into another liquid
You might be interested in
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of
Arisa [49]

Answer:  12033 kJ of heat produced per kg of CO_2 formed during the combustion of benzene

Explanation:

The balanced chemical equation for combustion of benzene is :

2C_6H_6(l)+15O_2(g)\rightarrow 12CO_2(g)+6H_2O(g)  \Delta H°rxn = -6278 kJ

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H for the reaction comes out to be negative.

\text{Moles of }CO_2=\frac{\text{given mass}}{\text{Molar Mass}}=\frac{1000g}{44g/mol}=23mol      (1kg=1000g)

According to stoichiometry :

12 moles of CO_2 on combustion produce heat = 6278 kJ

Thus 23 mole of CO_2 on combustion produce heat =\frac{6278}{12}\times 23=12033kJ

Thus 12033 kJ of heat produced per kg of CO_2 formed during the combustion of benzene

5 0
3 years ago
List the following elements in order , from best to worst conductor of electric current : silicon , copper, iodine.
Bingel [31]

Answer:

Iodine, Silicon, Copper.

Explanation:

Iodine is an insulator, which doesn't conduct electricity. Silicon is a semiconductor. Copper is a conductor.

8 0
3 years ago
Which of these CANNOT happen in a chemical reaction ?
choli [55]
The production of mew atoms?
4 0
3 years ago
Read 2 more answers
A 10.0-gram sample of liquid water at 23.0°C absorbs 209 joules of heat.
Aliun [14]

Answer:

The final temperature of the water is 28.0 °C

Explanation:

Step 1: Data given

Mass of liquid water = 10.0 grams

Temperature = 23.0 °C

Heat absorbed = 209 Joules

Since heat was absorbed by the water, you must have a positive value for  

Δ T

Step 2: Calculate final temperature

q = m*c* ΔT

⇒ with m = the mass of the water = 10.0 grams

⇒ with c = the specific heat of water = 4.184 J/g°C

⇒ with ΔT = The change in temperature = T2 -  T1 = T2 - 23.0 °C

⇒ with q = the heat absorbed = 209 Joule

209 = 10.0 * 4.184 * ΔT

ΔT = 5

ΔT = 5 = T2 - 23

T2 = 28 °C

The final temperature of the water is 28.0 °C

8 0
3 years ago
Glucose C6 H12 O6 is the simple sugar that plants make what is the total number of atoms in glucose
12345 [234]

Answer:

Total number of atoms in glucose are 24.

Explanation:

Photosynthesis:

It is the process in which in the presence of sun light and chlorophyll by using carbon dioxide and water plants produce the oxygen and glucose.

Carbon dioxide + water + energy →   glucose + oxygen

water is supplied through the roots, carbon dioxide collected through stomata and sun light is capture  by chloroplast.

Chemical equation:

6H₂O + 6CO₂ + energy  →   C₆H₁₂O₆ + 6O₂

Glucose molecule =  C₆H₁₂O₆

Total number of atoms = 6+12+6 = 24

Types of atoms = 3 (C,H,O)

3 0
4 years ago
Other questions:
  • Calculate the number of atoms per cubic meter in aluminum. The density and atomic weight of aluminum are 2.70 g/cm3 and 26.98 g/
    11·2 answers
  • What volume of 0.500 M zinc nitrate contains 2.94 g of zinc nitrate?
    13·1 answer
  • Hello I need help very bad!!!
    5·1 answer
  • What is the age of mummified primate skin that contains 8.25% of the original quantity of 14C?
    12·1 answer
  • Calculate the reaction quotient Qp for the following redox reaction: 14H+ + Cr2O72- + 6Cl- ----> 2Cr3+ + 3Cl2 + 7H2O The reac
    7·1 answer
  • what do the symbols tell you about the conditions of the reaction shown to the right check all boxes that apply
    13·2 answers
  • Decane (C10H22) can be split into propene (C3H6) and heptane (C7H16) by cracking
    10·1 answer
  • What does the smoke in the tube prove scientifically?/
    5·1 answer
  • Which type of rock is most likely to form because of high heat and pressure?
    13·2 answers
  • Calculate the mass of 1.33 mol of copper (II) sulphate
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!