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
Mekhanik [1.2K]
3 years ago
7

Which reactions have a positive Δrxn? A(g)+B(g)⟶C(g) 2A(g)+2B(g)⟶5C(g) A(s)+B(s)⟶C(g) 2A(g)+2B(g)⟶3C(g)

Chemistry
1 answer:
Sidana [21]3 years ago
4 0

Answer:

A(g)+B(g)⟶C(g) 2A(g)+2B(g)⟶5C(g)

A(s)+B(s)⟶C(g) 2A(g)+2B(g)⟶3C(g):

You might be interested in
A saturated solution of sodium nitrate is formed using 100 g of water. If the saturated solution is cooled from 80 C to 60 C, ho
Nataly_w [17]

Answer:

120b

Explanation:

im really good at math i think

5 0
3 years ago
Explain why a coin is able to float on top of water in a glass.
AlexFokin [52]
It is the concept of surface tension that helps the coin to float on the top of the water in the glass. The surface tension acts just opposite to the gravitational force and that is why when any metal placed in the water it will float and come on the surface. Hope this helps!
8 0
3 years ago
Read 2 more answers
Complete the chart below.
omeli [17]

Answer:

Deformation of heat and pressure

Explanation:

It is deformation of heat and pressure because igneous rock is made by magma when it cools. After a long time and pressure, it will turn into sedimentary rock.

6 0
3 years ago
2. When carbohydrates are oxidized, the C-H bonds of the carbohydrate become C=O bonds of carbon dioxide. Oxidation is defined a
Flauer [41]

Answer:

A) The shared electrons in C-O bonds spend less time close to the carbon nucleus than the shared electrons in C-H bonds.

Explanation:

The electronegativity from H is 2.2, from C is 2.55 and from O is 3.44. This property is the measure of the attractive force between an atom and a pair of electrons.

So, the difference of electronegativity of H and C is smaller than the difference between O and C. Because oxygen is more electronegative, the electrons stay close to it in the bond C=O. So carbon has a partial positive charge in that bond. For the bond C-H, the shared electrons stay closes to carbon.

5 0
3 years ago
Which of the following are cations? Select all that apply.
miskamm [114]

Answer:

Mg2+

NH4+

are cations because of there positive charge

Explanation:

-He is a noble gas and have no formal charge therefor it is not a cation

-cl- and o2- have a negative formal charge so they are called anion

3 0
2 years ago
Other questions:
  • Patient added a 17-g measured dose of polyethylene glycol 3350 (MIRALAX) to 180 mL of water to use as a laxative. If the volume
    6·1 answer
  • What is the molecular formula of the compound whose molar mass is 90.08 g/mol and empirical formula is CH2O??
    15·1 answer
  • What is the mass in grams, if you have 8.42 x 10^18 atoms of Bromine
    9·1 answer
  • This reaction forms triphenylmethanol from benzophenone. How could you use infrared spectroscopy to show that the benzophenone h
    5·1 answer
  • When steam is passed through red hot coke, a mixture of two gases is formed. Explain with reaction​
    10·1 answer
  • O 1. 12 moles
    13·1 answer
  • Early historical models of the solar system were geocentric. Which of these phrases describes a geocentric solar system?
    11·2 answers
  • Plz help me fast plz !!!!!!
    14·2 answers
  • A crane lifts a 5,800-N block from the ground to 20 m above the ground in 80 seconds. How much Power
    14·1 answer
  • If the change in Gibbs free energy for a process is positive, the corresponding change in entropy for the universe will be
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!