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
Mademuasel [1]
3 years ago
14

How can one show that elements that have different appearances have similar chemical properties?​

Chemistry
1 answer:
ad-work [718]3 years ago
4 0

Answer:

Elements within the same group have the same number of electrons in their valence (outermost) shells, and they have similar electron configurations. They exhibit similar chemical properties.

You might be interested in
What is a scientific claim
d1i1m1o1n [39]

Answer:

A scientific claim is a statement about the results of your experiment that is supported by evidence gathered during the experiment and reasoning that explains how the evidence is connected to the claim. For example: Claim: Air is matter.

Explanation:

6 0
3 years ago
7. Which statement correctly describes the density of Earth's mantle compared to the density of Earth's
Mice21 [21]

Answer:

1) the mantle is less dense than the core but more dense than the crust.

5 0
3 years ago
A geochemist measures the concentration of salt dissolved in Lake Parsons, an isolated salt lake. He finds a concentration of 21
VikaD [51]

Answer:

68,2%

Explanation:

Supposing the initial salt concentration of lake Parsons is the same of non-isolated lakes, 6,67L, and the change of salt concentration in isolated lake is just for water evaporation it is possible to write:

6,67gL⁻¹×X = 21gL⁻¹×Y

<em>-Where X is the initial water and Y is the water that remains in the isolated lake-</em>

Thus:

6,67X = 21Y

0,318 = Y/X

0,318 is the ratio of water that remains between total water. To obtain the ratio of evaporated water:

1-0,318 = 0,682

In percentage: <em>68,2%</em>

<em />

I hope it helps!

<em />

3 0
3 years ago
Help pleaseeeeeeeeeee
hichkok12 [17]

Answer:

D 1 and 3 only I am not sure

Explanation:

6 0
2 years ago
2 Zn + O2 → 2 ZnO
meriva

Answer:

we need 6.0 moles of zinc (Zn)

Explanation:

Step 1: Data given

Number of moles ZnO produced = 6.0 moles

Step 2: The balanced equation

2 Zn + O2 → 2 ZnO

For 2 moles Zinc we need 1 mol Oxygen to produce 2 moles Zinc oxide

Step 3: Calculate moles zinc

For 2 moles Zn we need 1 mol O2 to produce 2 moles ZnO

For 6.0 moles 2nO produced, we need 6.0 moles of zinc (Zn) and 3.0 moles of O2 to react.

3 0
3 years ago
Other questions:
  • An unknown compound was decomposed into 63.2 g carbon, 5.26 g hydrogen, and 41.6 g oxygen. what is its empirical formula?
    15·1 answer
  • Please help l need to correct it
    5·2 answers
  • When a cell divides in asexual reproduction what type of cell division is it? *
    8·2 answers
  • While burning coal and charcoal, you notice that coal releases more heat than charcoal. That means that the... 1. elastic energy
    12·1 answer
  • According to the VSEPR theory, a molecule or ion of NH₃ will have a _____ shape.
    9·2 answers
  • I am clueless on this question please help me !
    8·2 answers
  • If Protons are just as many as electrons, if I add neutrons to an atom, what is that called?
    8·1 answer
  • Please answer!!<br> No links.<br> Picture is included!
    13·1 answer
  • Soils have four basic components. What important soil component is a by-product of the action of decomposers like bacteria and f
    5·1 answer
  • How would you define balanced force if you were explaining it to a friend?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!