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
Suppose there is 0.63 g of HNO3 per 100 mL of a particular solution. What is the concentration of the HNO3 solution in moles per
Vadim26 [7]

Answer:

There are 0.09996826 moles per liter of the solution.

Explanation:

Molar mass of HNO3: 63.02

Convert grams to moles

0.63 grams/ 63.02= 0.009996826

Convert mL to L and place under moles (mol/L)

100mL=0.1 L

0.009996826/0.1= 0.09996826 mol/L

4 0
3 years ago
What is the atomic number of iron oxide?
Irina-Kira [14]

Answer:

26. Hemoglobin is a tetramer that consists of four polypeptide chains. Each monomer contains a heme group in which an iron ion is bound to oxygen.

Explanation:

5 0
3 years ago
Read 2 more answers
54
skelet666 [1.2K]

Answer:

less than 5 centimeters because it is a nonvascular plant

Explanation:

Mosses are a group of plants under the division Bryophyta. They are said to be the most primitive plant life in existence as they lack true roots, stems and leaves. They also lack vascular system, hence, they are regarded as non-vascular plants. They usually grow in very small sizes (about 0.2 - 10cm).

According to this question, Penny bought a club moss plant for her water garden and needs to know how tall the plant will grow so she know how much space it will need. Since it is a miss plant that lacks vascular tissues i.e. nonvascular, it will likely grow less than 5 centimeters in height.

7 0
2 years ago
Which begins as chemical energy and can be transformed into electricity?
Umnica [9.8K]
Sunlight i think thats the answer
8 0
3 years ago
Org. chem. How is this "1-aminopropan-2-ol" and not "3-aminopropan-2-ol"
MatroZZZ [7]
You want to achieve the lowest number possible
Because <span>3-aminopropan-2-ol is bigger than </span><span>1-aminopropan-2-ol number wise, so you should name it as </span>1-aminopropan-2-ol
3 0
3 years ago
Other questions:
  • Clayton will mix xxx milliliters of a 10\%10%10, percent by mass saline solution with yyy milliliters of a 20\%20%20, percent by
    7·1 answer
  • It is found that when one mole of sodium acetate trihydrate (nac2h302 3h2o, fw 136.08 g/mol) was heated to 58oc, water of hydra
    5·1 answer
  • A piece of gold with a mass of 15.23g and an initial temp of 53 Celsius was dropped into a calorimeter containing 28g of water,
    5·1 answer
  • Please i need help ​
    11·1 answer
  • Metallic behavior is generally associated with elements with partially filled p orbitals. elements with unpaired electrons. elem
    5·1 answer
  • 32. A sample of potassium is composed of 23% K-39, 48% K-40 and the remainder K-41. Calculate the average mass
    15·1 answer
  • A scientist who collects and analyzes DNA from a crime scene is a
    7·2 answers
  • How many atoms of carbon are in 6.00g of carbon?(Mm of carbon is<br> 12g/mol)
    13·1 answer
  • 5. Name the compound which contain Strontium, Fluorine, and Oxygen. options: Strontium fluorate Strontium fluoride Strontium chl
    14·1 answer
  • Calculate the percent composition of SrCO3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!