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
Pie
3 years ago
8

Which element is reduced in the following reaction: 2Mg+O₂ → 2MgO if Mg goes from 0 to +2 and O goes from 0 to -2?

Chemistry
1 answer:
Lyrx [107]3 years ago
8 0

Answer:

O.

Explanation:

  • The element which is oxidized is the element that losses electrons and its oxidation state be more positive.
  • The element which is reduced is the element that gain electrons and its oxidation state be more negative.

<em> O goes from 0 to -2, so, it is the element that is reduced.</em>

You might be interested in
10 points Which of these is the best example of heat transfer by radiation? *
insens350 [35]

Answer:

a) A satellite is warmed by sunlight.

Explanation:

Heat transfer by radiation mostly involves heat gain or heat loss from the Sun. In this case, Option A is the only option where sunlight is involved so it is the best example of heat transfer by radiation.

3 0
2 years ago
HELP ME PLEASE!!!! I NEEDZ HELP!!!
Anuta_ua [19.1K]
It goes Meter mega meter giga meter and kilometer
3 0
2 years ago
How many days will pass between a new moon and a full moon?
Nimfa-mama [501]

Answer:

30

Explanation:

im smart

8 0
3 years ago
Read 2 more answers
A 100.0 g sample of aluminum released 1680 calories when cooled from 100.0c to 20.0 c what is the specific heat of the metal
vovangra [49]

Answer:

The specific heat of aluminium is 0.8792 J/g °C  or 0.21 Cal/g °C

Explanation:

Step 1 : Write formule of specific heat

Q=mcΔT

with Q = heat transfer (J)

with m = mass of the substance

with c = specific heat ⇒ depends on material and phase ( J/g °C)

with ΔT = Change in temperature

For this case :

Q = 1680 Calories = 7033.824 J ( 1 calorie = 4.1868 J)

m = 100.0g

c= has to be determined

ΔT = 100 - 20 = 80°C

<u>Step 2:  Calculating specific heat</u>

⇒ via the formule Q=mcΔT

7033.824 J = 100g * c * 80

7033.824 = 8000 *c

c = 7033.824 /8000

c = 0,879228 J/g °C

or 0.21 Cal / g°C

The specific heat of aluminium is 0.8792 J/g °C  or 0.21 Cal/g °C

6 0
3 years ago
=:)
german

Answer:The Law of Conservation of Mass simply states that the total amount of mass should not change in a chemical reaction that is isolated (no other objects can enter the reaction). The total mass of the reactants must be equal to the total mass of the products. Thus, the correct estimate of the amount of oxygen used in the interaction is the difference between 133 g and 29 g.

Explanation: I hope this helped!

8 0
2 years ago
Other questions:
  • Jim collects a sample of beach sand during a class trip. After a close inspection of the sample he classifies it as a __________
    5·2 answers
  • Which are causes of mechanical weathering? Check all that apply.
    8·2 answers
  • If an element has a half-life of 16.7 days, how many days to go from 1000 to 250 atoms?
    5·1 answer
  • Woodpeckers find insects to eat by pecking holes in trees with their beaks. One day, a woodpecker finds a particular tree that o
    14·1 answer
  • Calculate the amount of heat gained when one 250 gram bottle is heated from 25oC to 30oC. The specific heat of water is 4.18 J/g
    14·2 answers
  • The structure of carbon dioxide using dots and crosses​
    14·1 answer
  • What is the [OH-] in a solution if the [H*] = 1.2 x 10-3 M?
    6·1 answer
  • Which is stronger- the attractive forces between water molecules and chromium and chloride ions, or the combined ionic bond stre
    9·1 answer
  • IV. Provide the chemical Name of below acid or base.
    6·1 answer
  • Someone please notice!! Explain the other parts such as the petal and receptacle do in the flower.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!