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
velikii [3]
2 years ago
15

explain why some metal occur as free element in nature, why other occur in combined states. give two examples of each type

Chemistry
1 answer:
MaRussiya [10]2 years ago
3 0

Explanation:

Thus, those metals which remain unaffected by moisture, oxygen and carbon dioxide of the air can occur native or free. In other words, the unreactive metals occur in nature in free state because of their low reactivity towards chemical reagents. ... Metals usually occur in combination with nonmetallic elements.

You might be interested in
If 0.583 g of ammonia (NH3) is dissolved to make 250 mL of solution, what is the molarity?
Misha Larkins [42]

Answer:

0.137 M NH3

Explanation:

First divide the mass of NH3 by the molar mass of NH3, and then divide by the volume to get molarity.

0.583 g / 17.031 g/mol = 0.0342 mol NH3

0.0342 mol NH3 / 0.250 L = 0.137 M NH3

7 0
2 years ago
Which particle diagram represents a mixture? <br><br> ( i hope you can read it)
Masja [62]
The 3rd diagram is a mixture because it has 2 substances
8 0
2 years ago
In 1990, the northern spotted owl was listed as endangered. Because of this, millions of acres of forests in the Pacific
Gwar [14]

Answer:

the endangered spices act

Explanation:  The US Endangered Species Act (ESA) is our nation's most effective law to protect at-risk species from extinction, with a stellar success rate: 99% of species listed on it have avoided extinction.

8 0
3 years ago
Solution X is a strong base with a pH of 12. Solution X is mixed with solution Y,and the pH of the resulting mixture is 8.Based
myrzilka [38]

The strong Base with a pH of 12 is reduced by 4 units upon being added with solution Y. If you added a strong acid to the strong base, all ions are present in the solution, yes? So every OH- is neutralised by every H+ for example, meaning the resultant pH should be 7. The resultant pH is only 8 however, so solution Y must be a <em>weak acid </em>only!

5 0
3 years ago
HELP ME ASAP
gtnhenbr [62]

Answer:D

Explanation:

7 0
2 years ago
Other questions:
  • Which statement describes the reactions in an electrochemical cell
    13·1 answer
  • What can you say about the relationship between temperature and volume?
    12·1 answer
  • Jose’s lab partner gives him a solution of sodium phosphate that is buffered to a ph 4. Because of an error that he made while c
    15·2 answers
  • Which of these substances is a mixture?
    10·2 answers
  • A hangar is a _____.
    12·2 answers
  • You add 50.0 g of ice initially at ‒20.0 °C to 1.00 x 102 mL warm water at 67.0 °C. When all the ice melts, the water temperatur
    9·1 answer
  • I need help with these 2 questions below:
    8·1 answer
  • PLS HELP ASAP NO LINKS PLS WILL MARK BRAINLIEST IF CORRECT
    9·1 answer
  • A student places three ice cubes in a beaker and allows them to partially melt. If she measures the temperature of the water in
    15·1 answer
  • What is the function of the lungs​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!