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
LiRa [457]
3 years ago
5

in the reaction Mg (s) + 2HCl (aq) H2 (g) + MgCl2 (aq), how many moles of hydrogen gas will e produced from 75.0 milliliters of

a 1.0 M HCl in an excess of Mg?
Chemistry
1 answer:
Anna35 [415]3 years ago
6 0
This question uses mole ratios. firstly, we look at how many moles of H2 are produced for every mole of HCl: from 1 Hcl, we get half a mole of H2. therefore, however many moles of HCl are present in the 0.075 L of 1.0M HCl, half that number of H2 moles will be produced. 

n=cv
  =0.0750 x 1.0
  =0.075 mol HCl
n(H2)= 0.5 x n(HCl)
         =0.0375 moles of H2
You might be interested in
Accidentally sent a message! never mind
stealth61 [152]
So it’s OKAYYYYY ITS OKAYYYY
5 0
3 years ago
You want to minimize an objects thermal energy loss on a cold day. How does heat energy transfer affect thermal energy loss?
san4es73 [151]

Answer:

4- A material that transfers heat energy more easily than another material will experience a greater rate of thermal energy loss than an object that does not transfer heat energy easily.

Explanation:

Thermal energy loss has to do with loss of heat energy by a body to another body or its environment. The aim of the process is usually the attainment of thermal equilibrium between the body and its environment.

On a cold day, a material that transfers thermal energy more easily will loose thermal energy faster than an object that does not transfer thermal energy. The rate of heat transfer of a body determines its rate of loss of thermal energy.

6 0
3 years ago
Identify the following as an element or compound <br><br> copper II oxide
user100 [1]
Copper II oxide is a compound.
4 0
3 years ago
Read 2 more answers
Which equation has both a liquid and a gas as products? 2 upper H g upper O (s) right arrow 2 upper H g (l) plus upper O subscri
Mandarinka [93]
<h2>Let us predict the gas and liquid products in option </h2>

Explanation:

option  1 :  2 upper H g upper O (s) right arrow 2 upper H g (l) plus upper O subscript 2 (g).

Chemical reaction

It is the reactants react to form products .

Chemical equation

It is the method of representing reaction in terms of moles , specifying states , symbols , molecular formulas etc .

This actually gives the complete info about the reaction .

In the above asked question or any other question we can specify the states by writting :

Solid as "S".

Liquid as "L"

Gas as (g).

8 0
3 years ago
Read 2 more answers
How many moles of copper are present in a sample that contains 4.55 x 10^24 atoms of copper
FinnZ [79.3K]

Hope you could understand.

If you have any query, feel free to ask.

3 0
2 years ago
Other questions:
  • The reaction between lead ion and chloride ion is given below:
    6·1 answer
  • How can the ph scale tell you if a substance is an acid a base or neutral?
    11·1 answer
  • The enthalpy change, ΔH, for a reaction at constant pressure is defined as: ΔH = ΔE + PΔV. For which of the following reactions
    12·1 answer
  • The mean free path of nitrogen molecules at 2.3°C and 1.28 atm is 1.51 x 10-5 cm. At this temperature and pressure there are 3.4
    14·1 answer
  • Which of these pairs is in Kingdom Fungi?
    13·2 answers
  • Which substance below has the greatest mass?
    8·1 answer
  • Can someone help me with Q4 MCQ? I would like to have an explanation pls. Thanks, will mark brainliest.
    15·1 answer
  • A salt dissolved in water forms _____.
    9·2 answers
  • The image shows sedimentary rock layers with index fossils and a fault.
    10·1 answer
  • Separate the pennies you have into two groups: one group with pennies dated before 1982 and the other with pennies dated after 1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!