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
Klio2033 [76]
2 years ago
10

Enter a balanced equation for the reaction between aqueous lead(II) nitrite and aqueous potassium bromide to form solid lead(II)

bromide and aqueous potassium nitrite. Express your answer as a chemical equation. Identify all of the phases in your answer.
Chemistry
1 answer:
lesya [120]2 years ago
6 0

Answer:

Pb(NO_{2})_{2}_{(aq)} + 2KBr_{(aq)}----->PbBr_{2}_{(s)} + 2 KNO_{2}_{(aq)}

Explanation:

The charges are as follows:

Pb^{+2} since oxidation number of lead is 2 as indicated lead (II)nitrite. The number in parentheses indicates the oxidation number.

NO_{2}^{-1} bears the charge -1.

As lead bears 2 positive charges so we need two nitrite ions to form lead (II) nitrite.

Br^{-1} , it is a halogen and bears the charge -1.

K^{+1} , it is an alkali metal.

Since Bromide bears -1 charge and potassium bears +1 charge so we need only 1 ion of bromide and 1 ion of potassium to form potassium bromide.

Similarly, to form lead bromide we need 2 ions of bromide and 1 ion of lead, and to form potassium nitrite we need 1 nitrite ion and 1 potassium ion.

The final balanced equation is as follows, the various states of reactants and products are also written properly.

Pb(NO_{2})_{2}_{(aq)} + 2KBr_{(aq)}----->PbBr_{2}_{(s)} + 2 KNO_{2}_{(aq)}

You might be interested in
True or false: the most easily ionizable elements are the most electronegative.
ehidna [41]
<span>False, This is because when you can easily ionize and atom or the chances of it being ionizable are quite high, it means that that particular atom have very low ionization potential that is the reason why it was easily ionizable An atom with a high ionization power and a firmly negative electron fondness will both pull in electrons from different particles and oppose having its electrons taken away; it will be an exceedingly electronegative molecule.</span>
3 0
2 years ago
How many moles of glucose are in 19.1g of glucose?​
Crank

Answer:

0.106 mol (3s.f.)

Explanation:

To find the number of moles, divide the mass of glucose (in grams) by its Mr. Glucose has a chemical formula of C6H12O6. To find the Mr, add all the Ar of all the atoms in C6H12O6.

Ar of C= 12, Ar of H= 1, Mr of O= 16

These Ar values can be found on the periodic table.

Mr of glucose= 6(12)+ 12(1) + 6(16)= 180

Moles of glucose

= mass ÷ mr

= 19.1 ÷ 180

= 0.106 mol (3 s.f.)

3 0
3 years ago
What are some factors that might stop populations exponential growth?
ipn [44]
Economy - If there isn't a sustainable economy, it won't be able to support many people so instead they are limited.

Weather- If a place is too warm or too cold it can affect the population. The weather may be seen as harsh.

Government- If people are not agreeing with the government and are against, many will leave. They won't be able to withstand it.

Overpopulation- If there is too many people, they may restrict how many babies you can have and how many people can live there. China, a co
7 0
3 years ago
Which of the following is a properly written formula for a compound between copper and bromine? CuBR CUBR CuBr CUBr
drek231 [11]
Elements are represented by their symbols with the first letter capitalized and the rest in lowercase. Copper is represented by Cu and Bromine is represented by Br. When combined to for a compound, the format of the symbols remain. Hence, the correct format would be CuBr. Thus, the answer is C: CuBr<span>.</span><span />
5 0
3 years ago
Read 2 more answers
How would you decrease the mass number?
iragen [17]

Answer:

Protons are positively charged. When a nucleus emits an alpha particle, these changes happen: the mass number decreases by 4. the atomic number decreases by 2.

Explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • How many tiny frogs sitting next to each other would measure the same length as a Blue Whale?
    7·2 answers
  • an ------ model with dark bands representing energy levels shows where an atoms electrons are most likely to be.
    11·1 answer
  • The reaction between nitrogen dioxide and carbon monoxide is NO2(g)+CO(g)→NO(g)+CO2(g)NO2(g)+CO(g)→NO(g)+CO2(g) The rate constan
    10·1 answer
  • HELP PLEASE. 50 points!
    10·2 answers
  • 2. The cheetah is considered one of the fastest land
    12·1 answer
  • Something made of all one material
    5·1 answer
  • Which of the following is a strong electrolyte
    8·1 answer
  • Please help with my chemistry! PLEASE
    13·1 answer
  • A 2.500g sample of compound containing only Carbon and Hydrogen is found containing 2.002g of Carbon. Determine the empirical fo
    13·1 answer
  • (a) 7.56 0.375 +14.3103<br>​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!