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
ladessa [460]
3 years ago
10

If I have 2.4g of magnesium, how many g of oxygen(O2 ) will I need to react completely with the magnesium? 2Mg +O2 → MgO

Chemistry
1 answer:
Jet001 [13]3 years ago
5 0

Explanation:

just trying....hope that helps

You might be interested in
All of the following are reasons why equations or balanced EXCEPT
Anni [7]

Answer:

monkey

Explanation:

4 0
2 years ago
Calculate the energy (in kJ) required to heat 10.1 g of liquid water from 55 oC to 100 oC and change it to steam at 100 oC. The
Maksim231197 [3]

Answer:

           \large\boxed{\large\boxed{24.6kJ}}

Explanation:

<u>1. Energy to heat the liquid water from 55ºC to 100ºC</u>

     Q=m\times C\times \Delta T

  • m = 10.1g
  • C = 4.18g/JºC
  • ΔT = 100ºC - 55ºC = 45ºC

     Q=10.1g\times 4.18J/g\ºC\times 45\ºC=1,899.81J

<u>2. Energy to change the liquid to steam at 100ºC</u>

      L=\lambda \times n

  • λ = 40.6kJ/mol
  • n = 10.1g / 18.015g/mol = 0.5606mol

      L=40.6kJ/mol\times 0.5604mol=22.76214kJ=22,762.14J

<u>3. Total energy</u>

       1,899.81J+22,762.14J=24,661.95J\approx24,662J\approx24.6kJ

7 0
3 years ago
ICl has a higher boiling point than Br2. What is the best explanation for this?
Flura [38]
<span>The best answer is B. ICl experiences induced dipole-induced dipole interactions. Both iodine and chlorine belongs to the same group of the periodic table. Electronegativity decreases as you go down a group therefore Cl will have a greater attraction with the bond it forms with another atom. Dipole-dipole interactions form between I and Cl. For the Br2 molecule, no dipole occurs because they are two identical atoms. Therefore we will be expecting ICl will have a higher boiling point due to higher binding energy it forms.</span>
7 0
3 years ago
Determine which set of properties correctly describes copper (Cu)?
Yakvenalex [24]

Answer:

D. Malleable, conducts electricity, high melting point, giant structure, metallic lattice

Explanation:

Copper is a metal with an atomic number of 29. This metal is soft and reddish in color which explains why it is very malleable(beaten to form various shapes without breaking).

All metals are good conductors of electricity including copper which is also a metal. Metals generally are insoluble in water. Copper also has a high melting point which is a characteristic of metals due to their giant structure and metallic lattice which makes it difficult to be broken down.

8 0
3 years ago
When 33.3 grams of propane (C​3​H​8​) undergoes combustion, what is the theoretical yield of water in grams? The molar mass of p
aev [14]
C3H8+ 5 O2 --> 3 CO2 + 4 H2O
44 g. --------> 72 g
33.3 g. --------> x
x =  \frac{33.3 \times 72}{44} \\ x = 54.5 \: g
Answer: The theoretical yield of H2O is 54.5
3 0
3 years ago
Read 2 more answers
Other questions:
  • Are dogs considered organisms?
    5·2 answers
  • A compound with the empirical formula ch2 has a molar mass of 98 g/mol what is the molecular formula for this compound ?
    13·1 answer
  • Persamaan ion for Mg+HCI
    12·1 answer
  • Charles’ law explains which of these phenomena?
    11·2 answers
  • About how many stars does the Milky Way Galaxy contain?
    5·1 answer
  • A 50.0-ml sample of 0.200 m sodium hydroxide is titrated with 0.200 m nitric acid. calculate the ph in the titration after you a
    6·1 answer
  • Number of Mg(OH)2 formula units in 7.40 moles of Mg(OH)2.
    8·1 answer
  • 12 points
    12·1 answer
  • Which of the following is not a magnetic material A cobalt B iron C nickel D plastic E steel
    15·1 answer
  • Write the balanced nuclear equation for the alpha decay of thorium-232.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!