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
Alborosie
4 years ago
14

Seashells can be most easily separated from sand because of differences in which property?density

Chemistry
2 answers:
Zolol [24]4 years ago
4 0

Answer: particle size

Explanation:

1. Density is defined as mass contained per unit volume.

If two substances have different densities, the one with higher density sinks in the one with lower density.

2. Magnetism is the property of an object that can attract or repel objects that have a magnetic material like iron inside them.

It is used in separation when one of the material is magnetic.

3. Boiling point is the temperature when liquid converts to gaseous form.

It is used to separate two liquids with different boiling points using distillation.

4. Particle size is used to separate two solids with different sizes. Sand particles are smaller than seashells and thus can be separated using sieve.

Artyom0805 [142]4 years ago
3 0
The answer is D, particle size
You might be interested in
Name two hormones produced by the endocrine system and describe how they work with other organ systems to maintain homeostasis
Annette [7]
The 2 hormones are insulin & glucagon.

A hormone will only act on a part of the body it 'fits'. A hormone can be thought of as a key, and its target site ( i.e an organ) has specially shaped locks on the cell walls. 
If the hormone fits, then it will work.

The hormone can set off a cascade of other singling pathways in the cell to cause an immediate effect ( for instance, insulin signaling leads to a rapid uptake of glucose in muscle cells)

The endocrine system is a tightly regulated system that keeps the hormones and their effects at just the right level. One way this is achieved is through ' feedback loops'. The release of hormones is regulated by other hormones, proteins or neuronal signals.

The released hormone then has its effect on other organs. This effect on the organ feeds back to the original signal to control any further hormone release.


btw- found all this info @ the Better Health channel, an australian government health website , so if your still confused by my answer, check out this website

www.betterhealth.vic.gov.au/health/conditionsandtreatments/hormonal-endocrine-system

8 0
3 years ago
Read 2 more answers
Which element of the periodic table is named after the moon
Troyanec [42]

Answer:

The answer to your question is Selenium

Explanation:

The origin of the names of the elements comes from different origins

For example

Sanskrit words. 14 elements have roots from this language

Planets, 4 elements took their names from the planets.

Greek, 42 elements took their names from these languages

The name of Selenium comes from the greek that means moon.

8 0
3 years ago
The equilibrium of 2H 2 O(g) 2H 2 (g) + O 2 (g) at 2,000 K has a Keq value of 5.31 x 10-10. What is the Keq expression for this
maks197457 [2]
Answer is: Keq expression for this system is Keq = <span>[O</span>₂<span> ]</span> · [H₂<span>]</span>² ÷  [H₂O<span>]</span>².<span>
Chemical reaction: 2H</span>₂O(g) ⇄ O₂(g) + 2H₂(g).
The equilibrium constant<span> (Keq) is a ratio of the concentration of the products (in this reaction oxygen and hydrogen) to the concentration of the reactants (in this reaction water).</span>
7 0
4 years ago
How many moles is 2.2 x 1023 atoms of Fe?
kow [346]

Answer:

it's 3.77 moles

Explanation:

Pls give brainliest :)

4 0
3 years ago
What is biodiversity? I don't really understand...
Vesnalui [34]

Answer:

it is also know as biological diversity

Explanation:

it refers to the varieties or various forms of plants and animals species

4 0
3 years ago
Other questions:
  • What is the concentration of a solution formed by diluting 25.0 ml of a 3.2 M NaCl solution to 135.0 ml?
    5·2 answers
  • A gas company has the following rate schedule for natural gas usage in single-family residences:
    15·1 answer
  • Write the reaction rate expressions for the<br> following reactions?<br> 2H2+O2_____2H2O
    14·1 answer
  • What is the mass of the polypropylene in grams? Assume that 1 lbs = 453.952 grams. Drag and drop the
    9·1 answer
  • Why do girls like boys who act rude more than boys that are actually nice!
    10·2 answers
  • Please help balance <br> _Ch7H16+_O2=_CO2+_H2O
    11·1 answer
  • c) If 21.0 g of potassium reacts with 62.5 g of barium nitride, what mass of potassium nitride will be produced?
    5·1 answer
  • Why is it necessary to have different types of equipment for the use in the laboratory?
    11·1 answer
  • A student wants to test how plants grow in different
    6·1 answer
  • What does acetic anhydride form when it reacts with water?​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!