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
Illusion [34]
2 years ago
10

Circle the letter of each sentence that is part of John Dalton’s atomic theory.

Chemistry
1 answer:
satela [25.4K]2 years ago
4 0

Answer:

A) All the elements are composed of atoms.

d) Atoms cannot be created or destroyed in any chemical changes.

c) An atom of one element cannot be changed into an atom of a different element.

Explanation:

The main postulates of Dalton atomic theory was:

1) The matter is composed of atoms and atom is indivisible particle which can not be destroyed.

2) The atoms of an element are identical.

3) The atoms of different elements are combining with definite proportion and form compounds.

4) The atoms of different elements are different from each other.

5) During chemical reaction rearrangement of atoms occur and form new compounds.

You might be interested in
Suppose 50.0g of silver nitrate is reacted with 50g of hydrochloric acid producing silver chloride and a mixture of other produc
docker41 [41]

Answer:

53.6 grams of silver chloride was produced.

Explanation:

AgNO_3+HCl+\rightarrow AgCl+HNO_3

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

This also means that total mass on the reactant side must be equal to the total mass on the product side.

Mass of silver nitrate = 50.0 g

Mass of hydrogen chloride = 50.0 g

Mass of silver chloride = x

Mass of  nitric acid = 46.4 g

Mass of silver nitrate + Mass of hydrogen chloride =

                             Mass of silver chloride + Mass of  nitric acid

[te]50.0 g+50.0 g=x+46.4 g[/tex]

x=50.0 g+50.0 g - 46.4 g = 53.6 g

53.6 grams of silver chloride was produced.

8 0
3 years ago
What is the boiling point of water?​
ExtremeBDS [4]

Answer:

212°F , 100°C , 373.15°K

They are all the same, in different units.

6 0
2 years ago
Read 2 more answers
Which unit is not a measurement of volume?<br><br> cm<br> L<br> ml<br> Cm^3
Mademuasel [1]
Centimeters are units of length.
8 0
3 years ago
Calcium has an atomic number of 20. How many electrons of a calcium atom are involved in chemical bonding?
NARA [144]

The answer is 2 electrons.


The electron configuration of calcium is 2:8:8:2

Calcium has two electrons in its outermost shell. These are its valence electrons and are the ones used in bonding with other elements.  Valence electrons of an atom are those electrons that are in its outer energy shell or that are available for bonding.

Calcium is a metal. When metals react with non-metals, electrons are transferred from the metal atoms to the non-metal atoms forming ions. The resulting compound is known  as an ionic compound.

For example, when calcium metal reacts with chlorine gas,   calcium gives up its two valence electrons and Chlorine accepts them resulting in a new substance called calcium chloride in which the two elements have ended up forming ionic bonds.

3 0
3 years ago
A gecko used its sticky feet to crawl from the bottom of a window to the top of
sp2606 [1]

Answer:

Decreased

Explanation:

You're faster when you go downhill than you are uphill.

8 0
3 years ago
Other questions:
  • Which statement about the scientific veiws is correct?
    15·1 answer
  • Is 4Si2H3 + 11O2=8SiO2+6H2O balanced
    5·1 answer
  • How would decreasing the volume of the reaction vessel affect each of the following equilibria?
    11·1 answer
  • Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
    14·1 answer
  • If 65.5 ml of HCl stock solution is used to make 450 ml of a 0.675 M HCl dilution, what is the molarity of the stock solution?
    11·1 answer
  • What is the vapor pressure of a solution that contains 70.0 mL of ether and 30.0 mL of benzene?
    9·1 answer
  • The movement of water from an area of high concentration to one of low concentration through a semipermeable membrane is called
    6·2 answers
  • 2. The energy of motion is called
    13·1 answer
  • 3. Your friend's new car can go from 0 to 60 m/s in 7 sec. What is the acceleration?<br>​
    5·1 answer
  • What data can be used to make a model of food?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!