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
Illusion [34]
3 years ago
5

* Who can help with this lol *

Chemistry
1 answer:
Viktor [21]3 years ago
5 0

Answer: subduction and sea floor spreading

Explanation:

He knew that the continents today were once joined together by fossil records of plants and animals that were found to be on continents far removed from each other. He knew this also by corresponding land forms that matches up as well. What he couldn’t prove is how the land masses would have moved so far away from each other. Subduction and sea floor spreading move the tectonic plates that the continents sit on. That’s what he was missing.

You might be interested in
Which set of coefficients will balance this chemical equation?
Lena [83]

Answer:The answer is D.1,3

Explanation:

8 0
3 years ago
Name a chemical that is safe to use in food in small amounts.
Mrrafil [7]

Answer:

Phthalates.

Perfluoroalkyl chemicals (PFCs)

Perchlorate

Artificial food colors

Nitrates and nitrites

Explanation:

I hope this help

4 0
2 years ago
The specific heat of aluminum is s 9.00 J/g C how much energy is needed to raise the temperature of 20.0 g block of aluminum fro
Nimfa-mama [501]
E=MC(delta)T
=20.0g x 9.00J/g x (94.4-22.8) C
= 12,924.0 J
7 0
3 years ago
If the removal of many plants and trees increase in a forest, what effect could this have on the carbon dioxide and oxygen cycle
harina [27]

Answer:

I think c

Explanation:

8 0
2 years ago
Read 2 more answers
germanium -66 has a half-life of 2.5 hours. you have 35 grams of radioactive material. after 16 days, how much radioactive mater
Maru [420]

Hey there!

A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.

How many half-lives are in 16 days?

Multiply 16 by 24 (to get the total hours) and divide that by 2.5.

That is 153.6 half-lives.

35(0.5)^(153.6) represents the equation for this.

Simplify this and get 8.88 x 10^(-45).

There will be 2.02 x 10^(-45)g of germanium-66 sample remaining after 16 days.

Hope this helps!

6 0
3 years ago
Other questions:
  • 12g of magnesium ribbon was heated in a crucible. At the end of the reaction 20g of magnesium oxide had been produced. What mass
    13·1 answer
  • How are radio telescopes
    13·1 answer
  • What is the conjugate acid of clo3 −? 1. hclo3 2. clo3 − does not contain oh−, so it is not a base and thus cannot have a conjug
    8·1 answer
  • In a lead-acid battery, the electrodes are consumed. In this battery, Select one: a. the anode is PbO2. b. the cathode is Pb. c.
    15·1 answer
  • For the mineral torbernite, Cu(UO2)2(PO4)2⋅8H2O, determine the total number of atoms in one formula unit
    15·1 answer
  • What property do all gases share
    10·1 answer
  • How many moles of N are in .235g of N2O
    7·1 answer
  • Which items are used to show elevation, relief, and slope on a topographic map? Check all that apply. topographic lines contour
    15·2 answers
  • when the sum 4.9965 + 2.11 + 3.887 is calculated, to how many decimal places should the answer be reported?
    9·1 answer
  • The distances from large bodies of water will affect the average rainfall of an area. (Example: Florida has more rain than Nevad
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!