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
statuscvo [17]
3 years ago
12

Why it is important to learn about elements,compound, and mixture?

Chemistry
1 answer:
Dafna11 [192]3 years ago
7 0
<span>In the study of science, it is also very important to know that all solids are not the same, all liquids are not the same, and all gases are never the same. </span>
You might be interested in
Calculate the mass, in grams, of cucl2 (mw = 134.452 g/mol) required to prepare 250.0 ml of a 6.11 % w/v cu2 (mw = 63.546 g/mol)
Sever21 [200]

6.11% w/v of Cu2+ implies that 6.11 g of Cu2+ is present in 100 ml of the solution

therefore,  250 ml of the solution would have: 250 ml * 6.11 g/100 ml = 15.275 g

# moles of Cu2+ = 15.275 g/63.546 g mole-1 = 0.2404 moles

1 mole of CuCl2 contain 1 mole of Cu2+ ion

Hence, 0.2404 moles of Cu2+ would correspond to 0.2404 moles of CuCl2

Molar mass of CuCl2 = 134.452 g/mole

The mass of CuCl2 required = 0.2404 moles * 134.452 g/mole = 32.32 grams

6 0
3 years ago
Explain water erosion please hurry!!
suter [353]
<span>Erosion is the act in which the earth is broken down by water, ice, or wind. It breaks bits of earth (rock or dirt) to form hills and mountains.


</span>
5 0
3 years ago
Similar properties recur periodically when elements are arranged according to increasing atomic number is the statement of the _
Xelga [282]

Answer:

Modern periodic law

Explanation:

There are many ways of stating the modern periodic law. Generally, the modern periodic law states that the properties of elements are a periodic function of their atomic numbers. That means, similar properties recur periodically when elements are arranged according to increasing atomic number.

Two scientists were largely responsible for our present day understanding of the modern periodic law, they are, Mendeleev and Moseley. Their work laid the foundation for the periodic table in its current form.

3 0
3 years ago
A 50.00 g sample of an unknown metal is heated
aleksley [76]
The water and heathfshiccu
8 0
3 years ago
Describe the appearance of the material. Include its color and state (solid or liquid). Pour ¼ cup of water into a small, clear
Alex777 [14]

<u>Answer:</u>

<em>Here the given material is taken and mixed with water.</em>

<u>Explanation:</u>

The amount of material and water taken are same. Hence if it is not soluble in water it should make a dense and flowy paste like material and if it is soluble in water it should this and thicker density of water should remain.

If the amount of water that we are taking is more than the material will float in water if it is not soluble and lighter than water or would sink if it is heavier than water.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The average density of whole milk is 1.034 g cm ^3. What is it’s density in lb gal ^-1?
    10·2 answers
  • If the first reaction used 0.5 g of copper then how many grams of copper will be produced in the last reaction?
    11·1 answer
  • What is the pH of 0.0050 HF (Ka = 6.8 x 10-4)? <br> 2.73 <br> 11.70 <br> 11.27 <br> 2.30
    15·1 answer
  • How many liters of water are needed to make a 4.00 M solution using 75.0
    13·1 answer
  • The human eye cannot see anything less than 40 micrometers in size. What is this length in meters?
    15·1 answer
  • What happens within clouds and/or within the region between the cloud and Earth that allows for the various forms of precipitati
    8·1 answer
  • FOR 50 POINTS &amp; A BRAINIST*
    8·1 answer
  • 385 x 42.13 x 0.079 is (consider significant figures):
    10·1 answer
  • I have to re ask this but pls help me I don't have a lot of time
    15·2 answers
  • Name of equipments that uses in crude oil distillation?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!