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
elixir [45]
4 years ago
5

Anyone , help with these chemistry questions

Chemistry
1 answer:
postnew [5]4 years ago
4 0
2) 1
3) 1
4) 2
5) 3 or 2, I’m not sure
6) 1
7) 2
8) 1
9) 4
10) 2
11) 3
12) 1
I hope this helps, good luck.
You might be interested in
Silver nitrate solution reacts with calcium chloride solution according to the equation: 2 AgNO3 + CaCl2 → Ca(NO3)2 + 2 AgCl All
HACTEHA [7]

Answer:

14.33 g

Explanation:

Solve this problem based on the stoichiometry of the reaction.

To do that we need the molecular weight of the masses involved and then calculate the number of moles, find the limiting reagent and  finally calculate the mass of AgCl.

                      2 AgNO₃   + CaCl₂    ⇒   Ca(NO₃)₂   + 2 AgCl

mass, g                  6.97        6.39                                     ?

MW ,g/mol         169.87      110.98                                  143.32

mol =m/MW           0.10         0.06                                    0.10

From the table above AgNO₃ is the limiting reagent and we will produce 0.10 mol AgCl which is a mass :

0.10 mol x 143.32 g/mol = 14.33 g

5 0
4 years ago
Which of the following demonstrates a poor internal control procedure?
Alex_Xolod [135]

Answer: The bookkeeper makes cash deposits and records journal entries related to cash, while the treasurer prepares the bank reconciliation.

Explanation: The bookkeeper in an organization is the person in charge of records keeping, his basic task is to keep financial records and therefore the bookkeeper has no business handling physical cash in an organization.

The financial secretary on the hand is in charge saving cash income and withdrawal of cash from an organization, this is done with the organization's accountant approval.

5 0
3 years ago
Structural formula for:<br>5 - methyl hept - 3 - enal​
Oksanka [162]

Answer:

draw the carbon chain is containing 6 carbon then attach the aldehyde group with edge carbon in chain then put the put double bond at 3 no. carbon

5 0
3 years ago
How does an increase in concentration affect a chemical reaction? (3 points)
Firlakuza [10]

Answer:

Explanation:

1. Increasing the concentrations of reactants in a chemical reaction would affect a reaction positively by increasing the number of collisions within a particular period which in turn increases the rate of reaction.

2. The molecules gains energy,which enable them to move faster and collide with the right energy for a reaction to take place.

3. The average kinetic motion of molecules in a solution can be measured by measuring the temperature. Temperature is a measure of the average kinetic energy of molecules in a solution.

4 0
4 years ago
What is the equilibrium expression for the reaction below?
Mariana [72]

Answer:

A. K=\frac{[N_2O]^2}{[N_2]^2[O_2]}

Explanation:

Hello there!

In this case, for us to figure out the appropriate equilibrium expression, it will be firstly necessary for us to recall the law of conservation of mass which states that the equilibrium constant of an equilibrium chemical reaction is written by dividing the products and reactants and including the stoichiometric coefficients as exponents. In such a way, for the given reaction, we will have:

K=\frac{[N_2O]^2}{[N_2]^2[O_2]}

As N2O is the product whereas N2 and O2 are reactants; thus, the equilibrium expression will be A.

Regards!

6 0
3 years ago
Other questions:
  • You have 49.8 g of O2 gas in a container with twice the volume as one with CO2 gas. The pressure and temperature of both contain
    5·1 answer
  • How many gallons of a 30% salt solution must be added to 40 gallons of a 12% salt solution to obtain a 20% solution?
    14·1 answer
  • I need help pls brainless if right
    15·1 answer
  • Which element when combined with chlorine would most likely form an ionic compound
    14·1 answer
  • What is the standard cell potential (E°cell) for the voltaic cell based on the reaction below? Sn2+ (aq) + 2Fe3+ (aq) → 2Fe2+ (a
    6·1 answer
  • Calculate the concentration of hydronium and hydroxide ions in a 0.050 M solution of nitric acid.
    12·1 answer
  • The diagram below shows a cell placed in a solution.
    11·1 answer
  • Is there a connection between the tools used for creating art and the technology of the time?
    15·1 answer
  • A one electron species, X m, where m is the charge of the one electron species and X is the element symbol, loses its one electr
    5·1 answer
  • Define valence electrons.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!