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love history [14]
3 years ago
13

A scientist discovers a deep bowl-like divot under the ocean off the coast of eastern Mexico that is many kilometers across. The

layers of the ground all around the continent from around the time that structure formed contain large amounts of iridium and a larger number of fossils than is normally found. What most likely caused the bowl-like structure?
a meteorite impact
an asteroid impact
an iridium spike
a Kuiper object impact
Chemistry
2 answers:
arsen [322]3 years ago
8 0

Answer:

its B

Explanation:

Katyanochek1 [597]3 years ago
5 0

Answer:

an asteroid impact or B

Explanation:

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Prions are proteins with the ability to generate more prions by causing other proteins to misfold into a similar shape. Since pr
horsena [70]
They're not made up of cells, and they don't have any kind of metabolism. Because they lack genetic material and a cellular structure, prions are less often grouped in with living things than viruses. ... What is the case for viruses being alive?
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3 years ago
How many moles of c9h8o4 are in a 0.600 g tablet of aspirin?
lord [1]

Answer : The moles of C_9H_8O_4 are, 108.0948 mole

Explanation : Given,

Mass of aspirin = 0.600 g

Molar mass of aspirin = 180.158 g/mole

The molecular formula of aspirin is, C_9H_8O_4

Formula used :

\text{Moles of }C_9H_8O_4=\frac{\text{Mass of }C_9H_8O_4}{\text{Molar mass of }C_9H_8O_4}

Now put all the given values in this formula, we get the moles of C_9H_8O_4.

\text{Moles of }C_9H_8O_4=\frac{0.600g}{180.158g/mole}=108.0948mole

Therefore, the moles of C_9H_8O_4 are, 108.0948 mole

4 0
3 years ago
Read 2 more answers
You apply the same amount of heat to five grams of water and five grams of aluminum. The temperature of the aluminum increases m
Mashutka [201]
Specific heat is another physical property of matter. All matter has a temperature associated with it. The temperature of matter is a direct measure of the motion of the molecules: The greater the motion the higher the temperature:



Motion requires energy: The more energy matter has the higher temperature it will also have. Typicall this energy is supplied by heat. Heat loss or gain by matter is equivalent energy loss or gain.

With the observation above understood we con now ask the following question: by how much will the temperature of an object increase or decrease by the gain or loss of heat energy? The answer is given by the specific heat (S) of the object. The specific heat of an object is defined in the following way: Take an object of mass m, put in x amount of heat and carefully note the temperature rise, then S is given by



In this definition mass is usually in either grams or kilograms and temperatture is either in kelvin or degres Celcius. Note that the specific heat is "per unit mass". Thus, the specific heat of a gallon of milk is equal to the specific heat of a quart of milk. A related quantity is called the heat capacity (C). of an object. The relation between S and C is C = (mass of obect) x (specific heat of object). A table of some common specific heats and heat capacities is given below:

Some common specific heats and heat capacities: Substance S (J/g 0C) C (J/0C) for 100 g Air 1.01 101 Aluminum 0.902 90.2 Copper 0.385 38.5 Gold 0.129 12.9 Iron 0.450 45.0 Mercury 0.140 14.0 NaCl 0.864 86.4 Ice 2..03 203 Water 4.179 417.9   

Consider the specific heat of copper , 0.385 J/g 0C. What this means is that it takes 0.385 Joules of heat to raise 1 gram of copper 1 degree celcius. Thus, if we take 1 gram of copper at 25 0C and add 1 Joule of heat to it, we will find that the temperature of the copper will have risen to 26 0C. We can then ask: How much heat wil it take to raise by 1 0C 2g of copper?. Clearly the answer is 0.385 J for each gram or 2x0.385 J = 0.770 J. What about a pound of copper? A simple way of dealing with different masses of matter is to dtermine the heat capacity C as defined above. Note that C depends upon the size of the object as opposed to S that does not.

We are not in position to do some calculations with S and C.

Example 1: How much energy does it take to raise the temperature of 50 g of copper by 10 0C?



Example 2: If we add 30 J of heat to 10 g of aluminum, by how much will its temperature increase?

 



Thus, if the initial temperture of the aluminum was 20 0C then after the heat is added the temperature will be 28.3 0C.
5 0
3 years ago
Of molecules didn't exist how would life be different
UNO [17]
Everything is made of molecules so I don’t think there would be life without molecules..
8 0
3 years ago
Read 2 more answers
Please help! 
aleksley [76]

the answer is,, made of three layers, has a terry layer, has a solid outer layer. Im 100% sure.

4 0
2 years ago
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