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
3241004551 [841]
2 years ago
15

1.

Chemistry
1 answer:
german2 years ago
3 0

Order of metals from least reactive to most reactive: B <C <A <D

<h3>Further explanation</h3>

Reducing agents are substances that experience oxidation  

Oxidizing agents are substances that experience reduction

The metal activity series is expressed in voltaic series  

<em>Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au  </em>

The more to the left, the metal is more reactive (easily release electrons) and the stronger reducing agent  

The more to the right, the metal is less reactive (harder to release electrons) and the stronger oxidizing agent

So that the metal located on the left can push the metal on the right in the redox reaction  

Let's analyze the statement in the problem

I. Only A, C and D react with 1 mol/L HCl to give H₂(e)

M + HCl ⇒ MCl + H₂(MCl : alkali, MCl₂ : alkaline earth)

A, C and D can react with 1 mol / L HCl, meaning metals A, C and D are located to the left of element H (more reactive), and B in the right of element H

II. When A is added to solutions of the other metal ions, metallic B and C are  formed but not D.

This means that metal A is more reactive than metals B and C, while D is more reactive than A, so metal D is the most reactive

You might be interested in
Please help. It's for chemistry
irinina [24]
What do i help with what
3 0
2 years ago
In the forward reaction of this equilibrium, which substance acts as the Brønsted-Lowry base? H2S(aq)+CH3NH2(aq)⇋HS−(aq)+CH3NH+3
timama [110]
H2S donates a proton, therefore it is a Brønsted-Lowry base; CH3NH2 accepts a proton, so it’s a Brønsted-Lowry base.
8 0
3 years ago
How carbon dioxide prepared in lab?
Nana76 [90]

Explanation:

In laboratory, carbon dioxide is not obtained from the air, carbon dioxide is prepared from carbonates by adding acids to the carbonates. In this experiment carbon dioxide is prepared by the reaction of marble with hydrochloric acid.

7 0
3 years ago
The only part of Earth's inner structure that is a liquid is the _____. A. inner core B. lower mantle C. outer core D. crust
slavikrds [6]

Answer:

lower mantle

Explanation:

because the core and the crust are solid.

8 0
2 years ago
Read 2 more answers
PLEASE HELP!!!!! Noble gases are often described as being very stable. Give two points to explain what this means.
Leya [2.2K]

Answer:

Noble Gases are very stable because...

1) Noble Gases have a full octet

2) Low chemical reactivity

Explanation:

This means that is has 8 valence electrons so it won't need any more, so it is less likely to react with other substances.

6 0
3 years ago
Other questions:
  • When considering light moving through a diffraction grating, you should treat the light as what?
    8·2 answers
  • Giraffes with short necks lived in arid regions. Over time, grasses disappeared, forcing giraffes to eat from trees. Mutations i
    5·2 answers
  • If one mole of a substance has a mass of 56.0 g, what is the mass of 11 nanomoles of the substance? Express your answer in nanog
    13·1 answer
  • These cooked noodles were separated from the water they were cooked in. By which physical property were they separated? A. size
    12·1 answer
  • 1. I am a rock particle that wear down rocks. I am also apart of physical
    15·1 answer
  • Who can help me with this? I will give brainliest lmk!
    5·1 answer
  • Choose the best tool for each scenario.
    15·1 answer
  • What is the definition of a community in environmental science
    13·1 answer
  • Acids, bases, and salts belong to a large group of compounds called:__________
    8·1 answer
  • Consider the following reaction in the forward direction. Identify the base:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!