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
just olya [345]
3 years ago
6

Which statement describes the change that occurs during the reaction of tin with lead(II) nitrate? A. Tin atoms give electrons t

o lead(II) ions and are reduced to tin(II) ions. B. Tin atoms accept electrons from lead(II) ions and are oxidized to tin(II) ions. C. Tin atoms accept electrons from lead(II) ions and are reduced to tin(II) ions. D. Tin atoms give electrons to lead(II) ions and are oxidized to tin(II) ions.
Chemistry
1 answer:
timama [110]3 years ago
3 0
Answer is: <span>D. Tin atoms give electrons to lead(II) ions and are oxidized to tin(II) ions.
Chemical reaction: Sn</span>⁰ + Pb²⁺ → Sn²⁺ + Pb.
Tin atom (oxidation number 0) give two electrons to led ions, oxidation number of tin is greater now (oxidation number +2).
<span>Oxidation is loss of electrons.</span>
You might be interested in
If the pOH of vinegar is 9.45, what is its [OH− ]?
7nadin3 [17]
Answer:
            [OH⁻]  =  3.54 × 10⁻¹⁰ M

Solution:

pOH is related to [OH⁻] as,

                           pOH  =  - log [OH⁻]

Putting value of pOH,

                           9.45  =  -log [OH⁻]

Solving for [OH⁻],

                           [OH⁻]  =  10⁻⁹·⁴⁵                       ∴ 10  =  Antilog

                           [OH⁻]  =  3.54 × 10⁻¹⁰ M
4 0
3 years ago
Read 2 more answers
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration
DerKrebs [107]

Answer:

3.65 g / ml correct to 3 sig. fig.

Explanation:

The computation of the concentration required is shown below:

As we know that

[A] = mass of solute ÷ volume of solution

Before that first find the mass of solute

Given that

Initial weight = 5.55g

And,

Final weight = 92.7 g

So,

Mass of KCl is

= 92.7 - 5.55

= 87.15 g ~ 87.2 g

Now the KCi is fully dissolved, so the volume is 23.9 ml

So,  concentration is

= 87.2 g ÷ 23.9 ml

= 3.65 g / ml correct to 3 sig. fig.

6 0
3 years ago
. Calculate the molality of each of the following solutions: (a) 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0 kg
Step2247 [10]

Answer:

a)0.67 molal

b) 5.67 molal

c) 2.82 molal

d) 0.0268 molal

Explanation:

Step 1: Data given

Molality = moles solute / mass solvent

(a) 0.710 kg of sodium carbonate (washing soda), Na2CO3, in 10.0 kg of water—a saturated solution at 0°C

Calculate moles of Na2CO3 =  710 grams / 105.99 g/mol = 6.70 moles

Molality = 6.70 moles / 10 kg = 0.67 molal

(b) 125 g of NH4NO3 in 275 g of water—a mixture used to make an instant ice pack

Calculate moles of NH4NO3 = 125 grams / 80.04 g/mol = 1.56 moles

molality = 1.56 moles / 0.275 kg = 5.67 molal

(c) 25 g of Cl2 in 125 g of dichloromethane, CH2Cl2

Calculate moles Cl2 = 25 grams / 70.9 g/mol= 0.353 moles

Molality = 0.353 moles / 0.125 kg = 2.82 molal

0.372 g of histamine, C5H9N, in 125 g of chloroform, CHCl3

Calculate moles histamine = 0.372 grams / 111.15 g/moles = 0.00335 moles

Calculate molality = 0.00335 moles / 0.125 kg = 0.0268 molal

NOTE: histamine is C5H9N3 not C5H9N

4 0
3 years ago
What is cellulose and what does it do?
olga2289 [7]

Answer:

Cellulose is an organic compound with the formula , a polysaccharide consisting of a linear chain of several hundred to many thousands of β linked D-glucose units. Cellulose is an important structural component of the primary cell wall of green plants, many forms of algae and the oomycetes.

Explanation:

8 0
3 years ago
Read 2 more answers
What evidence suggests that global climate change is causing the oceans to get warmer?
jasenka [17]

Answer:

A large point of evidence in this would be the rate of increase in how fast the polar ice caps are melting and the ocean is rising as a result. As the climate is getting warmer so are the oceans and this is causing the ice caps which are in the ocean.

Explanation:

4 0
3 years ago
Other questions:
  • Calcium carbonates are incorporated into the shells of microscopic marine plants and animals and then participate into the ocean
    11·1 answer
  • You know the concentration of your unknown hcl solution is approximately 0.10 m and you would like to use 40. ml to reach the en
    14·1 answer
  • 36g of KOH dissolved in 800mL of water. What is the molality of the solution?
    14·1 answer
  • Never have what near a heating device ?
    12·1 answer
  • What is the ph of an aqueous solution with the hydronium ion concentration?
    14·1 answer
  • Which structure is found in plant cell but not in an animal cell ?
    10·1 answer
  • Silicate particles from a construction site float through a heavily forested site and then make it into the upper troposphere wh
    6·1 answer
  • Which of the following species is not capable of acting as an Arrhenius acid in aqueous solution?
    9·1 answer
  • How many electrons does an aluminum ion have?<br> a. 10<br> b. 13<br> c. 14<br> d. 16
    12·2 answers
  • A 300.0 mL saturated solution of copper(II) peroidate, Cu(IO4)2, contains .30 grams of dissolved salt. Calculate Ksp.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!