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SSSSS [86.1K]
3 years ago
6

Wegner's theory that the continents slowly moved over Earth's surface became known as _________ .

Chemistry
1 answer:
Thepotemich [5.8K]3 years ago
7 0
Wedners <span>idea that the </span>continents slowly moved over Earth's surface became known as<span> continental drift. According to </span>Wegener<span>, the </span>continents<span> drifted together to form the supercontinent Pangaea (pan jee uh).Pangaea means “all lands.” According to</span>Wegener<span>, Pangaea existed about 300 million years ago.</span>
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analyze why is the result of the stage of meiosis shown below an advantage for organisms that reproduce sexually.
patriot [66]

Answer:

Meiosis produces haploid cells (gametes), which contain single chromosomes, or on-half the number of chromosomes in diploid cells. When a sperm and an egg join, the single chromosomes pair up, which results in genetic diversity in the offspring

6 0
3 years ago
What are the physical properties of Sodium Chloride?
solong [7]
Odourless, white, cubic crystals.Hygroscopic.Characteristic salty taste.Melting point = 800.8 °C.Boiling point = 1465 °C.Density = 2.165 g/cm³Solubility at 25 °C = 35.9 g/100 g water.Vapour pressure at 865 °C = 1 mm Hg.
5 0
3 years ago
Read 2 more answers
Which answer choice is it?<br><br> A 3d<br><br> B 4p<br><br> C 4d<br><br> D 4f
Airida [17]

Answer:

3d

Explanation:

6 0
3 years ago
Classify each of the following as elements (E), compounds (C) or Mixtures (M). Write the letter X if it is none of these. ______
Lana71 [14]

Answer:

Diamond - E

Sugar- C

Milk - M

Iron- E

Air- M

Sulfuric Acid- C

Gasoline - M

Electricity- X

Krypton- E

Bismuth - E

Uranium - E

Kool-Aid -M

Water - C

Alcohol - C

Pail of Garbage - M

Ammonia - C

Salt - C

Energy - X

Gold - E

Wood - M

Bronze - M

Ink - M

Pizza - M

Dry Ice - C

Baking Soda - C

Explanation:

An element is the smallest part of a substance that is capable of independent existence. An element cannot be broken down into any other substance. Krypton, Bismuth etc are all elements.

A compound is a combination of two or more elements which are chemically combined together e.g NH3, CO2 etc.

A mixture is any combination of substances that are not chemically combined together. E.g Pizza, milk etc

5 0
3 years ago
Explain the relationship between forward and reverse
serious [3.7K]

If a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts to counteract the change to reestablish equilibrium. If a chemical reaction is at equilibrium and experiences a change in pressure, temperature, or concentration of products or reactants, the equilibrium shifts in the opposite direction to offset the change. This page covers changes to the position of equilibrium due to such changes and discusses briefly why catalysts have no effect on the equilibrium position.

For example, if the system is changed in a way that increases the concentration of one of the reacting species, it must favor the reaction in which that species is consumed. In other words, if there is an increase in products, the reaction quotient, Qc, is increased, making it greater than the equilibrium constant, Kc.

8 0
3 years ago
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