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
Julli [10]
3 years ago
12

Which two parts of an atom determine the atom's mass?

Chemistry
1 answer:
DENIUS [597]3 years ago
4 0

the number of protons and the number of neutrons determine an element's mass number. :D

You might be interested in
What is meaning of trash​
salantis [7]

Answer:

waste or discarded material

7 0
3 years ago
Read 2 more answers
The dissolution of calcium chloride in water is given by the following equation:
never [62]

Answer:

The reactants would appear at a higher energy state than the products.

Have a nice day!

8 0
2 years ago
How much (Q) heat is needed to melt 35 g of iodine? Hf = 61.7 J/g.
aev [14]

Taking into account the definition of calorimetry and latent heat, a heat of 2159.5 J is needed to melt 35 g of iodine.

<h3>Calorimetry</h3>

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

<h3>Latent heat</h3>

Latent heat is defined as the energy required by a quantity of substance to change state.

When this change consists of changing from a solid to a liquid phase, it is called heat of fusion and when the change occurs from a liquid to a gaseous state, it is called heat of vaporization.

The heat Q that is necessary to provide for a mass m of a certain substance to change phase is equal to

Q = m×L

where L is called the latent heat of the substance and depends on the type of phase change.

<h3>Heat needed to melt iodine</h3>

In this case, you know:

  • m= 35 g
  • L=61.7 \frac{J}{g}

Replacing in the definition of latent heat:

Q= 35 g× 61.7 \frac{J}{g}

Solving:

<u><em>Q=2159.5 J</em></u>

Finally, a heat of 2159.5 J is needed to melt 35 g of iodine.

Learn more about calorimetry:

brainly.com/question/14057615

brainly.com/question/24988785

brainly.com/question/21315372

brainly.com/question/13959344

brainly.com/question/14309811

brainly.com/question/23578297

#SPJ1

8 0
1 year ago
True or False? Some solids after mixing with other solids can be distinguished from each other
katen-ka-za [31]

Answer:

True

Explanation:

Depends of the size and comparison

4 0
2 years ago
Read 2 more answers
What is the other name for a helium nucleus?
alisha [4.7K]

Answer:

A particle consisting of two neutrons and two protons, with a positive charge; emitted energetically from the nuclei of unstable isotopes of mass number 82 and up. Synonym(s): alpha ray. Helie, Louis T.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Consider the group a1 element sodium atomic number 11, the group 3a element aluminum atomic number 13, and the group 7a element
    10·1 answer
  • Standard Thermodynamic Quantities for Selected Substances at 25 ∘C Reactant or product ΔHf∘(kJ/mol) Al(s) 0.0 MnO2(s) −520.0 Al2
    6·1 answer
  • The standard cell potential Ec for the reduction of silver ions with elemental copper is 0.46V at 25 degrees celsius. calculate
    7·1 answer
  • A man carrying a torch walks though a jungle on a very dark night. Suddenly, he sees two eyes looking down from a tree that seem
    13·1 answer
  • What is the correctly balanced chemical equation for the reaction of KOH and H2SO4
    13·1 answer
  • Power plants use specialized scrubbers to remove sulfur oxide gases. true or false.
    13·2 answers
  • The answer to this question is D as it says in the answer sheet of the question paper but how?
    5·1 answer
  • What do you call the movement of the earth's surface to the atmosphere?
    6·1 answer
  • Please help me out! Fr
    9·1 answer
  • Which layer of Earth has partially melted material that moves the tectonic plates?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!