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
son4ous [18]
4 years ago
7

Help on this one, i have no idea how to do it​

Chemistry
1 answer:
Gennadij [26K]4 years ago
8 0

Answer:

c

Explanation:

You might be interested in
A substance with a pH of 9 ha
TEA [102]

Answer:

Baking soda has a ph of 9

Explanation:

5 0
3 years ago
Calculate the standard enthalpy change for the reaction at 25 ∘ C. Standard enthalpy of formation values can be found in this li
meriva

Answer:

The standard enthalpy change for the reaction at 25^{0}\textrm{C} is -2043.999kJ

Explanation:

Standard enthalpy change (\Delta H_{rxn}^{0}) for the given reaction is expressed as:

\Delta H_{rxn}^{0}=[3mol\times \Delta H_{f}^{0}(CO_{2})_{g}]+[4mol\times \Delta H_{f}^{0}(H_{2}O)_{g}]-[1mol\times \Delta H_{f}^{0}(C_{3}H_{8})_{g}]-[5mol\times \Delta H_{f}^{0}(O_{2})_{g}]

Where \Delta H_{f}^{0} refers standard enthalpy of formation

Plug in all the given values from literature in the above equation:

\Delta H_{rxn}^{0}=[3mol\times (-393.509kJ/mol)]+[4mol\times (-241.818kJ/mol)]-[1mol\times (-103.8kJ/mol)]-[5mol\times (0kJ/mol)]=-2043.999kJ

4 0
3 years ago
Complete the following reaction.<br> 14N+ on →?C+1H<br> 18C<br> 14<br> 1 C<br> 18C
CaHeK987 [17]

Answer: The complete reaction is as follows.

 ^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H

Explanation:

When nucleus of two or more atoms are bombarded together then it leads to the formation of new particles with new identity. This type of reaction are called nuclear reaction.

For example, ^{14}_{7}N + ^{1}_{0}n \rightarrow ?C + ^{1}_{1}H

Here, nitrogen atom when bombarded with a neutron then it is forming hydrogen and a carbon atom.

As total atomic mass on reactant side is (14 + 1) = 15

So, the atomic mass of carbon formed on product side is (15 - 1) = 14.

The number of protons holded by this carbon atom is (7 - 1) = 6.

Therefore, we can conclude that the complete reaction is as follows.

 ^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H

6 0
3 years ago
Which of the following is a mixture?<br>steel<br>water<br>oxygen<br>gold​
Natasha_Volkova [10]

Water is the answer out of all the other options

6 0
3 years ago
A mixture in which one substance is evenly mixed with another substance is called a..
Brrunno [24]

Answer:

C solution

Explanation:

i hope that i got it right im not very good with questions

8 0
3 years ago
Other questions:
  • Which of the following techniques is most appropriate for the recovery of solid KNO3 from an aqueous solution of KNO3?
    10·1 answer
  • What is the property of a neutron?
    12·1 answer
  • Suppose a current of 0.880 A flows through a copper wire for 132. seconds. Calculate how many moles of electrons travel through
    9·1 answer
  • One positive attribute of dietary fat is that it's a good source of
    14·1 answer
  • Chemistry: An oxygen gas container has a volume of 20.0 L. How many grams of oxygen are in the container, if the gas has a press
    9·1 answer
  • How many grams does 1.0 liter of motor the density of motor oil is 0.80g / mL
    8·1 answer
  • How is volume calculated given mass and density? (4 points)
    6·2 answers
  • How many moles of hexane must burn to form 18.4 mol of carbon dioxide
    8·2 answers
  • A student makes a ball-and-stick model of a propane molecule, as shown below. The black balls represent carbon atoms, and the wh
    10·1 answer
  • Please help!! what is the compound of Sr(NO2)2​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!