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
Hoochie [10]
3 years ago
11

Where does much of our history of Precambrian rocks come from? fossils on the rock surface ores mined from shields ash taken fro

m volcanoes trenches on the sea floor
Chemistry
1 answer:
Maurinko [17]3 years ago
8 0

Answer:

Ores mined from shields.

Explanation:

Ores mined from shields are the source from which we get the history of Precambrian rocks. The Ores from shield experience the Precambrian era so that's why its rocks provides information about that era. The Precambrian supereon is the division of the geological time scale which is the first and longest stage in the history of the Earth which also includes the Hádic, Archaic and Proterozoic eons.

You might be interested in
The salts you tested were held together by ionic bonds. The compounds were made of two types of ions, positive and negative, tha
vladimir1956 [14]

Answer:

A an ionic compound that completely dissolves in water, forming many ions

Explanati

5 0
3 years ago
Read 2 more answers
Using dimensional analysis
bogdanovich [222]

Answer:

the answer is diensional 12:2

Explanation:

8 0
3 years ago
First to answer correctly gets 10 pts plus brainleist! (must answer correcty tho)
soldi70 [24.7K]

Answer:

Explanation:

sorry dont understand

7 0
3 years ago
Read 2 more answers
An element A forms a compound AH3 with hydrogen. Another element B forms a compound BA2 with B. Given that the valency of hydrog
Hatshy [7]

Answer:

A - 3

B - 6

Explanation:

The valency of hydrogen atom is +1

The valancy of an atom of other element combining with the hydrogen atom can be determined from the  number of associated hydrogen.

when H combines with A, three atoms of hydrogen are used. Thus the valency of element A is -3

Now B combines with two molecules of A whose valency is -3

The valency of B would be twice the valency of element A i.e 6

if hydrogen combines with B, then the compound formed will be BH6

8 0
3 years ago
What do you think the volume of a prescription bottle would be?<br> plz help me
GrogVix [38]

Answer: about 5 Mg

Explanation:

Because that sounds right

7 0
4 years ago
Other questions:
  • There are 5 areas of chemistry:physical chemistry, organic chemistry, analytical chemistry, biochemistry and inorganic chemistry
    15·1 answer
  • Which state of matter is charcterized with no volume?
    7·1 answer
  • Which of the following describes a compound
    10·1 answer
  • 3Co2 (aq) 6NO3(aq) 6Na (aq) 2PO43–(aq) → Co3(PO4)2(s) 6Na (aq) 6NO3(aq) Identify the net ionic equation for this reaction.
    12·1 answer
  • What metal is oxidized in the most common dry cell
    8·1 answer
  • The uncertainty in the measurement 0.0035 mg is:_______ A) + 0.1 mg B) + 0.01 mg C) 0.001 mg D) + 0.0001 mg
    9·1 answer
  • A compound is a type of matter true or false
    13·2 answers
  • How many times bigger is the solar system than the earth ?
    9·2 answers
  • 90.0 mL of H2O is initially at room temperature (22.0∘C). A chilled steel rod at 2.0∘C is placed in the water. If the final temp
    15·1 answer
  • My feet get hot as soon as I touch the sand. What kind of heat transfer occurred?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!