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
Nuetrik [128]
3 years ago
8

Some magnesium powder was mixed with some copper( II)oxide and heated strongly. there was a victorious reaction producing a lot

of sparks and a bright flash of light.
1) name the products of the reaction
2)write a balanced equation for the reaction.

plzzzzz help!!!​
Chemistry
2 answers:
Ilya [14]3 years ago
8 0

Answer:

See below.

Explanation:

1)  Magnesium oxide MgO  and copper metal (Cu).

2) Mg + CuO --->  MgO + Cu.

-BARSIC- [3]3 years ago
4 0

Reaction:

\mathrm{Mg \: + \: CuO \rightarrow Cu\: + \: MgO}

Magnesium is a stronger reducing agent than copper and is thus able to reduce copper(II) oxide.

Products of the reaction: Magnesium oxide and metallic copper.

You might be interested in
What happens in a voltaic cell?
nirvana33 [79]

Answer:

Hi ,

Answer:

A chemical energy is changed to a electrical energy

3 0
3 years ago
A buffer is prepared by adding 12.0g of ammonium chloride (NH4Cl) to 250mL of 1.00 M NH3 solution?The pH is 9.3 Write the net io
solniwko [45]

Answer:- NH_3(aq)+H^+(aq)\rightleftharpoons NH_4^+(aq)

Explanations:- The solution we have is a buffer solution and we know that a buffer solution resists a change in its pH if a strong acid or base is added to it.

Here, the buffer solution we have is of a weak base and it's conjugate acid. So, a strong acid(nitric acid) is added to this buffer then it reacts with the base present in the buffer so that the acid could be neutralized. This is called buffer action.

The net ionic equation is written as:

NH_3(aq)+H^+(aq)\rightleftharpoons NH_4^+(aq)

Note that HNO_3 is a strong acid and nitrate ion is the spectator ion so it is not included in the net ionic equation.

8 0
3 years ago
"A crosslinked copolymer consists of 57 wt% ethylene (C2H4) repeat units and 43 wt% propylene (C3H6) repeat units. Determine the
ch4aika [34]

Explanation:

Percentage ethylene by weight = 57%

Percentage propylene by weight = 43%

Suppose in 100 grams of polymer:

Mass of ethylene = 57 g

Mass of propylene = 43 g

Moles of ethylene = \frac{57 g}{28 g/mol}=2.036 mol

Moles of propylene = \frac{43g}{42g/mol}=1.024 mol

1 mole = N_A =6.022\times 10^{23} molecules/ atoms

Units of ethylene = 2.036 mol\times N_A

Units of propylene = 1.024 mol\times N_A

a) Fraction of ethylene units:

=\frac{2.036 mol\times N_A}{2.306 mol\times N_A+1.024 mol\times N_A}=\frac{509}{765}

b ) Fraction of propylene units:

=\frac{1.024mol\times N_A}{2.306 mol\times N_A+1.024 mol\times N_A}=\frac{256}{765}

3 0
3 years ago
Which of the following is a quantitative observation of the frog?
Nataliya [291]
Quantitative means to count how many of something. The correct answer is B, It has two eyes. Hope this helps
6 0
3 years ago
Read 2 more answers
An atom of the element iron has an atomic number of 26 and an atomic weight of 56. if it is neutral, how many protons, neutrons,
guapka [62]
Proton 26
neutron 0
you can tell how many proton by the atomic number
3 0
3 years ago
Other questions:
  • Beryllium (Be): 1sC2sD, what's C and D?
    12·2 answers
  • A reaction between liquid reactants takes place at in a sealed, evacuated vessel with a measured volume of . Measurements show t
    8·1 answer
  • A solution is made by adding 360 g of table salt into 1 L of water. The solubility of the salt is 36 g/100 mL water. Which term
    15·2 answers
  • A 10.0 g ice cube is placed into 250 g of water with an initial temperature of 20.0 C. If the water drops to a temperature of 16
    8·1 answer
  • Help please !!!
    6·2 answers
  • What do you see happen when you increase the frequency?
    15·2 answers
  • What part of the food chain is a lemming
    6·2 answers
  • Describe the effects that constant stress can have on your body functions.
    11·2 answers
  • Pls help i am in 8th grade k12
    13·1 answer
  • Fluorine (F
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!