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
Mariulka [41]
2 years ago
6

Of the three metals pb cu zn which is the most active

Chemistry
1 answer:
Paladinen [302]2 years ago
6 0
Zn is the most active of the three metals.
You might be interested in
An endothermic dissolution process a. absorbs energy as heat and has positive enthalpy of solution. b. releases energy as heat a
Whitepunk [10]

Answer:

a. absorbs energy as heat and has positive enthalpy of solution.

Explanation:

A reaction can either be exothermic or endothermic. An endothermic reaction, as the dissolution described in the question, is that which absorbs heat energy from the surroundings in order to start the reaction.

Because an endothermic reaction makes heat lost from the surroundings, the enthalpy (∆H) of the solution will be positive (+). ∆H is got by finding the difference between the enthalpy of the reactants and products and since the enthalpy of a product in endothermic reaction is more, the enthalpy change (∆T) will be positive.

8 0
3 years ago
Iron(II) is available to bond with chloride ion. How many of each type of ion will bond to form an ionic compound?
Evgesh-ka [11]

Answer:

D) 1 iron(II), 2 chloride

Explanation:

Iron II chloride is the compound; FeCl2. It is formed as follows, ionically;

Fe^2+(aq) + 2Cl^-(aq) -----> FeCl2

The formation of one mole of FeCl2 involves the reaction one mole of iron and two moles of chloride ions. This means that in FeCl2, the ratio of iron to chlorine is 1:2 as seen above.

Therefore there is one iron II ion and two chloride ions in each mole of iron II chloride, hence the answer.

7 0
3 years ago
Each incomplete reaction is a neutralization reaction. Match each equation with the salt formed.
ddd [48]
Based on the incomplete neutralization reaction above, the corresponding salts that each reaction would form are as follows:
1. H2SO4 + 2NH4OH----(NH4)2SO4 with water as a byproduct
2. 2NaOH + H2CO3 ----Na2CO3 with water as a byproduct
3. HNO3 + KOH ----KNO3 with water as a byproduct
6 0
2 years ago
Read 2 more answers
To what category of elements does an element belong if it's a poor conductor of electricity
Karo-lina-s [1.5K]

Answer:

I would assume NON-METALS

7 0
3 years ago
Of the following transitions in the Bohr hydrogen atom, the ________ transition results in the emission of the lowest-energy pho
Sladkaya [172]
N=6 ——> n=1
hope this helps!
5 0
3 years ago
Other questions:
  • Two of the simplest compounds containing just carbon and hydrogen are methane and ethane. Methane contains 0.3357 g of hydrogen
    12·1 answer
  • The standard metric units of density are:<br> kg/N<br> g/cm3<br> kg/cm3<br> g/L
    6·2 answers
  • Why do you think the experimenter conducted this experiment in a lab rather than in the natural world, where this
    14·1 answer
  • Metal cations are atoms that have a positive charge. What type of bond is metal cation likely to form?
    9·2 answers
  • If 1.0g of each of the following gases is stored at STP, which one would occupy the greatest volume? CH4, CO, H2O, NO, or will t
    8·1 answer
  • A 0.500-g sample of chromium metal reacted with sulfur powder to give 0.963 g of product. Calculate the empirical formula of the
    10·1 answer
  • Reaction type <br> __HCl + __Mg -&gt; __MgCl2 + __H2
    7·1 answer
  • Perform the following operation
    11·1 answer
  • A compound has an empirical formula of CH 0 and a molecular mass of 180 g. What is the compound's
    5·1 answer
  • Why do Earth and the moon remain in orbit?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!