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
PtichkaEL [24]
3 years ago
10

Why were gold and copper the first forms of matter investigated by humans

Chemistry
1 answer:
baherus [9]3 years ago
8 0
They were valuable to the eyes of man then.
You might be interested in
Which of the following substances has
Dmitry [639]
D.  all of the above, although I do find it hard to believe something like flour would have a melting point, I looked up my answer to double check. 
4 0
3 years ago
Read 2 more answers
If you made a three-dimensional model of an atom and its nucleus, how would you represent the atom? 7th grade
Gemiola [76]

Answer:

it shows the breakdown of the atom

Explanation:

it will show it molecularly

7 0
3 years ago
Why is it better to use deionized water in chemistry experiments
Leno4ka [110]

Answer:

Laboratories use both distilled water and deionized water as controls in experiments. Deionization removes only non-charged organic matter from the water.

Explanation:

Distilled water removes even more impurities than deionization does, if the water undergoes a filtering process before boiling and distillation.

6 0
3 years ago
4. What will be the most effective means of increasing the dissolving<br>rate of sugar in water?​
trasher [3.6K]

Answer:

The best mean is heating the solution

3 0
3 years ago
Read 2 more answers
Which statement best describes the structure of a lipid molecule?
Sergeeva-Olga [200]

A phospholipid has a charged head and an uncharged tail.

5 0
2 years ago
Other questions:
  • It takes 338. kJ/mom to break a carbon-chlorine single bond. Calculate the maximum wavelength of light for which a carbon-chlori
    15·1 answer
  • PLEASE HELP ME QUICKLY!!!!!
    8·2 answers
  • Which is not a sign of a physical change? *
    10·1 answer
  • A piece of black onyx was cut into a rectangular solid measuring 5.10 cm by 5.10 cm by 2.50 mm . What is the volume in cubic cen
    11·1 answer
  • Consider the following mechanism: (1) ClO−(aq) + H2O(l) ⇌ HClO(aq) + OH−(aq) [fast] (2) I−(aq) + HClO(aq) → HIO(aq) + Cl−(aq) [s
    15·1 answer
  • What is the molar mass of Al2(SO3)3
    6·1 answer
  • Guys I don't know science, if you are intelligent tell me what is science ​
    14·1 answer
  • How many Liters of H2O are in 1.50 g H2O?
    9·2 answers
  • What are some damages for aftershocks
    6·2 answers
  • A gas bottle contains 8. 61×1023 oxygen molecules at a temperature of 359. 0 k. what is the thermal energy of the gas? (you migh
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!