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
Ostrovityanka [42]
3 years ago
12

What is the transfer of heat by direct contact - occurs when the particles in a material collide with neighboring particles?

Chemistry
1 answer:
nignag [31]3 years ago
8 0

Answer:

Conduction

Explanation:

<h2>Hope I helped you:)</h2>
You might be interested in
Pyridine, C5H5N, is a polar organic solvent. How many carbon atoms are in 7.05 moles of pyridine? 4.24 x 1024 4.24 x 10, 24 2.12
leonid [27]

Answer:

2.122×10^25atoms

Explanation:

number of moles=mass/molar mass

7.05moles= mass of pyridine/79

reacting mass of pyridine=556.95

C5H5N= (12×5)+(5)+(14)=79

C5=60

to find the mass of carbon in 556.95g of pyridine we take the stoichometric ratio

60[C5] -----> 79[C5H5N]

x[C5] --------> 556.95g[C5H5N]

cross multiply

x=(60×556.95)/79

x=423g of carbon

moles=mass/molar mass

moles of carbon=423/12

moles=35.25moles of carbon

moles=number of particles/Avogadro's constant

35.25=number of particles/6.02×10^23

number of particles=2.122×10^25atoms of carbon

3 0
2 years ago
QUESTION 3 (a) Ammonium sulphate, (NH),50, is a soluble salt and it is used in agriculture as fertiliser. 5 g of ammonium sulpha
nataly862011 [7]

Answer:

The equation: (NH₄)₂SO₄ = 2NH4(+) + SO4(-2)

The number of moles = 5 g / 132.14 g/mol = 0.038 mol

The number of molecules = 0.038 X 6.022x10^23 = 2.29x10^23

the number of positive ions present in the ammonium sulphate solution:

2 positive ions for every 1 molecule of (NH₄)₂SO₄

so 2 x 2.29x10^23 = 4.58x10^23

the number of negative ions present in the ammonium sulphate solution

1 negative ion for every 1 molecule of (NH₄)₂SO₄

so 1 x 2.29x10^23 = 2.29x10^23

the total number of ions present in the ammonium sulphate solution​

4.58x10^23 + 2.29x10^23 = 6.87x10^23

4 0
3 years ago
If the pOH of a cesium hydroxide solution is known to be 4.00. what is the (OH)? *Please round your answer to the appropriate nu
Snowcat [4.5K]

Answer:

i going to be aniston i would say take a gess

4 0
2 years ago
How many particles are in one mole of copper (II) sulfate, CuSO4?
Kobotan [32]
2. Avogadro’s number
3 0
3 years ago
A 500 gram piece of metal had a volume of 2.75cm3. What is it’s density
beks73 [17]

Answer:

181.82 g/cm3

Explanation:

density is mass / volume so it is 500 / 2.75=181.82 g/cm3

8 0
3 years ago
Other questions:
  • What is the effect of adding a pre-made mix to alcohol?
    10·1 answer
  • (Chemistry question)
    9·1 answer
  • Benzoic acid is a weak monoprotic acid. It has a pKa of 4.20. A student transferred 25.00mL of 0.126M benzoic acid into a beaker
    5·1 answer
  • Important parts of biological membranes
    5·1 answer
  • For the chemical reaction C2H6 --&gt; C2H4 + H2 + 137kJ, the chemical energy of the
    15·1 answer
  • melting, boiling, and bending are considered physical changes, but burning is a chemical change. explain why this is so.
    12·1 answer
  • Why do ice cubes formed from water of a glacier freeze at a higher temperature than ice cubes formed from water of an undergroun
    15·2 answers
  • Guide Questions:
    9·1 answer
  • Why is it difficult to detect the presence of isotopes of an element during chemical<br> studies?
    14·1 answer
  • Is John Cena a rabbit?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!