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
juin [17]
3 years ago
6

PLEASE HELP

Chemistry
2 answers:
Amiraneli [1.4K]3 years ago
7 0

Answer:

A. Melting point

Explanation:

Isotopes have the same atomic number hence the same number of electrons which causes them to have the same chemical properties. But isotopes have different number of neutrons which causes them to have different mass numbers. The difference in mass numbers causes isotopes to have different physical properties. Heavier isotopes have a higher mass numbers than lighter isotopes because of which they have a higher melting point, boiling point etc.

Deffense [45]3 years ago
3 0

The answer is A. Isotopes only differ in the number of neutrons in the nucleus of their atoms. Otherwise, all other subatomic particles are the same. The isotope with the more neutrons in its nucleus is therefore, heavier (have higher mass number). They share the same chemical properties but have slight physical differences such as boiling points with the heavier element having a slightly higher boiling point that the lighter element.

You might be interested in
Over-encouraging lesser skilled players can lead to embarrassment.<br> a. True<br> b. False
Margarita [4]
My answer would be a. True
6 0
3 years ago
Read 2 more answers
The table below shows the dimensions of two colored cubes.
Lynna [10]

Answer:

Red, because it has less volume and more amount of matter.

Explanation:

3 0
3 years ago
Omg pls help i dunno what the frick frack this is
snow_lady [41]

Answer:

1. Mass of KCl produced = 774.8 g of KCl

2. Mass of KNO₃ produced = 13.837g

3. Moles of NaOH made = 0.846 moles

4. Moles of LiCl produced = 0.846 moles

5. Moles of CO₂ produced = 207.6 moles

Explanation:

1. From the equation of reaction, 1 mole of ZnCl₂ produces, 2 moles of KCl.

5.02 moles of ZnCl₂ will produce, 2 × 5.02 moles of KCl = 10.4 moles of KCl

Molar mass of KCl = (39 + 35.5) g/mol = 74.5 g/mol

10.4 moles of KCl = 10.4 × 74.5 g

Mass of KCl produced = 774.8 g of KCl

2. Mole ratio of KNO₃ and KOH = 1:1

O.137 moles of KOH will produce 0.137 moles of KNO₃

Molar mass of KNO₃ = 101 g/mol

Mass of KNO₃ produced = 0.137 × 101 g = 13.837g

3. Molar mas of Ca(OH)₂ = 74.0 g

Moles of Ca(OH)₂ in 31.3 g = 31.3/74.0 = 0.423 moles of Ca(OH)₂

Mole ratio of NaOH and Ca(OH)₂ in the reaction = 2 : 1

Moles of NaOH made = 2 × 0.423 = 0.846 moles

4. Molar mass of MgCl₂ = 95.0 g

Moles of MgCl₂ in 40.2 g = 40.2/95.0 = 0.423 moles

From the reaction equation, mole ratio of MgCl₂ and LiCl = 1:2

Moles of LiCl produced = 2 × 0.423 = 0.846 moles

5. From the equation of reaction, 1 mole of C₆H₁₀O₅ produces 6 moles of cO₂

34.6 moles of C₆H₁₀O₅ will produce 34.6 × 6 moles of CO₂

Moles of CO₂ produced = 207.6 moles

4 0
3 years ago
State how you can tell from a dot and cross diagram that the particles in a compound are held together by ionic bonds
Darina [25.2K]

Answer:

In diagram you have to show the electrons(dots) near to the more electronegative element by this you can show that this is an ionic bond.

Explanation:

8 0
3 years ago
What are the constituents of baking powder?
timurjin [86]
Baking powder is a mixture of baking soda and a mild edible acid such as tartaric acid
5 0
3 years ago
Other questions:
  • Which is an example of a solution?
    14·2 answers
  • In ionic bonds the atom that contributes an electron and has a positive charge as a result is called the . The atom in ionic bon
    8·1 answer
  • What causes a substance to change states of matter?
    15·1 answer
  • 7.55 grams of P4 and 7.55 grams of O2 react according to the following reaction:
    15·1 answer
  • What did Bohr conclude about the atom after observing emission spectrum lines a. Electrons can exist in any energy state but hav
    5·1 answer
  • Calculate the molar mass of Ba(ClO4)2
    7·1 answer
  • When nonmetals react with nonemtalss, the atoms of the nonmetals?
    11·1 answer
  • How many micrograms (ug) are in 3.4 x 10^-5 ounces (oz)
    9·1 answer
  • POS MOLECULES SPEED UP WHEN ENERGY IS CREATED AND SLOW DOWN WHEN ENERGY IS DESTROYED True False? explain why​
    7·1 answer
  • Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!