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
Rufina [12.5K]
3 years ago
7

Kito puts his spoon into a helping of fresh, hot, mashed potatoes as shown in the figure. Which process takes place when the two

objects come together
A. The temperature of the spoon increases, but its thermal energy does not change

B. Energy in the form of heat is transferred from the warmer mashed potatoes to the cooler spoon

C. The thermal energy of both the mashed potatoes and the spoon increases as energy in the form of heat is transferred between them

(please answer quickly, I don't want to fail this test due to being stuck on this one)
Chemistry
1 answer:
Svet_ta [14]3 years ago
7 0

Answer:

B. is the answer

Explanation:

Energy in form of heat is transferred from the warmer mashed potatoes to the cooler spoon.

You might be interested in
Determine the oxidation state of nitrogen in lino3.
Andre45 [30]

Answer : The oxidation state of nitrogen in LiNO_3 is, (+5)

Explanation :

Rules for the oxidation numbers :

  • The oxidation number of a free element is always be zero.
  • The oxidation number of a monatomic ion equal to the charge of the ion.
  • The oxidation number of  Hydrogen (H)  is +1.
  • The oxidation number of  oxygen (O)  in compounds is usually -2, but it is -1 in the peroxides.
  • The oxidation number of a Group 1 element in a compound is +1.
  • The oxidation number of a Group 2 element in a compound is +2.
  • The oxidation number of a Group 17 element in a binary compound is -1.
  • The sum of the oxidation numbers of all of the atoms in a neutral compound is zero.
  • The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.

The given compound is, LiNO_3

Let the oxidation state of 'N' be, 'x'

(+1)+x+3(-2)=0\\\\x=+5

Hence, the oxidation state of N is, (+5)

3 0
4 years ago
Read 2 more answers
A copper atom has 29 protons and 36 neutrons. What is the mass number of this atom in amu?​
Mamont248 [21]
The Mass number is 65, Copper-65

To find the mass number you add the number of protons to the number of neutrons.
4 0
2 years ago
How is energy passed from the sun to all organisms in an ecosystem?
Studentka2010 [4]

Answer:

B. through food cycles

I think it will help you

8 0
3 years ago
_____ occurs when the product of the ion concentrations exceeds the Ksp.
arlik [135]
Precipitation occurs when the product of the ion concentration exceeds the Ksp.
4 0
3 years ago
Read 2 more answers
What is the oxidation number of Ni in NiO
galben [10]

Answer:

+2

Explanation:

Nickel (II) oxide, or NiO, is an ionic compound. Recalling a few rules of determining the oxidation number of substances:

1. Oxidation numbers of elements in ionic compounds are usually their own ionic charge

2. The total oxidation number of a neutral compound should be 0

And,

3. The oxidation number of oxygen in most cases is -2.

Therefore, since O in NiO has a oxidation number of -2, and nickel (II) ion usually has a charge of 2+, the oxidation number of Ni in NiO is +2 (always remember to put the positive sign in front of the number)

4 0
4 years ago
Other questions:
  • If you dissolve 23 g of ammonium chloride in 500.0 mL of water, what is the molar concentration of the solution?
    6·1 answer
  • Since this reaction takes place in acidic solution, H2O(l) and H+(aq) will be involved in the reaction. Places for these species
    6·1 answer
  • How many liters of CO2 are in 4.76 moles? (at STP)
    9·1 answer
  • You take the mass of the empty detergent container and find that is 390 g. It’s volume is 300.0ml what it’s density
    14·1 answer
  • What is true about a liquid that has been converted to its solid state?
    7·1 answer
  • Convert 1000.0 mm/s to km/hr. (1 km= 1000 m, 1 m = 1000 mm, 1 hr = 3600 S )
    15·1 answer
  • I am so confused
    8·2 answers
  • Give two examples of diffusion of gases and liquids found in the house. ​
    7·1 answer
  • PLeaseee help me with this.
    10·1 answer
  • How many moles of carbon dioxide are produced when 23. 0 g of c3h8o3 is burned during the complete combustion of c3h8o3?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!