Answer:
The main cause of global convection currents is the uneven heating of the earth by the sun. Hope this helped! :)
The main cause of global convection current is differential heating, that is the temperature difference in different levels of atmosphere.
What is convection current?Convection current is the heat transfer by fluid movement in the earth crust between different temperature regions. The density of fluids differs due to the temperature gradients and thus heated fluids raises and cooled fluid sinks.
The heated fluid movement causes the movement of plates of earth. The molten rock deep inside the earth crust circulates by the convection current.
Hence, the main cause of global convection current is the differential heating of the atmosphere.
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Which of the following is one way creativity can help scientists?
Answer:
One way creativity is helpful to scientists is when they need to come up with a experiment or cure for something their imaginastion is very helpful. The reason for that is with creativity they could get answers much quicker!
Explanation:
Answer:
I agree with that answer
find the odd one out and explain the reason why ? sand , sugar , salt , baking soda
Answer: Sand
Explanation: Out of all the choices, sand is the only one that cannot react with other substances.
Answer:
sand
Explanation:
all are used mostly in cookin and preparing things and are in the kitchen
SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
An experiment was conducted to find the mass of one mole of carbon atoms. The results of the experiment showed that a mole of carbon atoms had a mass of 15.78 g. The accepted value of a mole of carbon atoms is 16.00 grams. What is the percent error in this experiment?
Answer:
1.375%
Explanation:
Percent Error = measured value - accepted value/ accepted value x 100
Measured Value: 15.78
Accepted Value: 16.00
Work:
[tex]\frac{15.78-16.00}{16.00}[/tex] * 100
[tex]\frac{-.22}{16}[/tex] * 100 = -1.375
You cannot have a negative percentage. Therefore the answer is 1.375%
Express a mass of 0.056 mg in grams.
Answer in units of g.
Answer:
0.000056g
Explanation:
1 mg = 0.001 g
Or if it helps move your decimal sign over left 3 places.
23°C = ______ K
-250
296
123
23
Answer:
296
Explanation:
Tk = ºC + 273
Tk = 23 + 273
T = 296 K
60 N net force is applied to a 12 KG box. What is the acceleration of the box?
Answer:
The answer is
5 m/s²Explanation:
The acceleration of an object given it's mass and it's net force can be found by using the formula
[tex]acceleration = \frac{force}{mass} \\ [/tex]
From the question
force = 60 N
mass = 12 kg
So we have
[tex]acceleration = \frac{60}{12} \\ [/tex]
We have the final answer as
5 m/s²Hope this helps you
why does neon have a higher first ionization energy than fluorine
Give me a hand，Solve this problem，Need everyone's help
Answer:
A. 8.8 g.
B. 5.3 g.
C. 449 g.
Explanation:
A. Determination of the mass of CO2.
Mole of CO2 = 0.2 mole
Molar mass of CO2 = 12 + (2×16)
= 12 + 32
= 44 g/mol
Mass of CO2 =?
Mole = mass /Molar mass
0.2 = mass of CO2 /44
Cross multiply
Mass of CO2 = 0.2 × 44
Mass of CO2 = 8.8 g
B. Determination of the mass of Na2CO3.
Mole of Na2CO3 = 0.05 mole
Molar mass of Na2CO3 = (2×23) + 12 + (3×16)
= 46 + 12 + 48
= 106 g/mol
Mass of Na2CO3 =?
Mole = mass /Molar mass
0.05 = mass of Na2CO3 /106
Cross multiply
Mass of Na2CO3 = 0.05 × 106
Mass of Na2CO3 = 5.3 g
C. Determination of the mass of Fe(OH)2.
Mole of Fe(OH)2 = 5 moles
Molar mass of Fe(OH)2 = 55.8 + 2(16 + 1)
= 55.8 + 2(17)
= 55.8 + 34
= 89.8 g/mol
Mass of Fe(OH)2 =?
Mole = mass /Molar mass
5 = mass of Fe(OH)2/89.8
Cross multiply
Mass of Fe(OH)2 = 5 × 89.9
Mass of Fe(OH)2 = 449 g.
Which of the following is a noncontact force?
Answer:
gravity
Explanation: its a force that pulls you down but you are never making contact with it
Answer: Gravity
Explanation:
It pushes you down but you never actually touch it
What is Polymerase Chain Reaction?
Answer:
Polymerase Chain reaction is a method used by scientists to making A LOT (millions to billions) of copies of a DNA sample which then allows scientists to take a small of that DNA and increase the amount to a very large amount to study the DNA into further detail.
Polymerase Chain Reaction (PCR)
Polymerase chain reaction (PCR) is a technique for replicating or copying a specific portion of a DNA strand; leads to millions of copies of the DNA segment technique for replicating or copying a specific portion of a DNA strand; leads to millions of copies of the DNA segment.
How do you do a one pager online!?!?!
I couldn’t find science so I just chose chemistry
Need help with this
Answer:
environmentalism I think
Explanation:
...................
Answer:
2nd choice answer
Explanation:
thats ez tbh
Which is the electron configuration for boron? 1s22s3 1s22s23s1 1s12s22p2 1s22s22p1
Answer:
electron configuration for boron is 1s22s22p1
Answer:
D
(answer is D)
How did Edward Teller died?
Answer:
septembar 9 2003
Explanation:
he died in september 9 2003
Answer:
Your answer:
His cause of death was a stroke ( heart attack)
hope this helped you
please mark as the brainliest (ㆁωㆁ)
8. In
studies, scientists do not interfere with what is going on.
Answer:
Observational
Explanation:
This is the answer because researchers or scientist observe the effect of a diagnostic test, treatment or other intervention without trying to change anything.
What is the formula for potassium nitrate?
Will give Brainlist!!!!!!! PLEASE HELP! Express the results of the following calculations with the correct number of significant figures: 5502.5 + 21 + 0.06
How many significant figures are in the following number?
5.67 x 106
3
6
4
This element has nine more electrons than Technetium
Answer:
Tellurium
Explanation:
Technetium's position on the periodic table is 43 and Tellurium's is 52
1.54x10-1 L / 2.36x 10-45 solve this in scientific notation
Answer:
Fish is the best time to go
Explanation:
Chicken nuggets and a salad and some onion rings and a new charger
Calcium carbide ( CaC2) reacts with water to produce acetylene (C2H2) as shown in the unbalanced reaction below: CaC2(s)+H2O(g)->Ca(OH)2(s)+C2H2(g). How many grams of H2O are required to completely react with 82.4g of CaC2
The given reaction can be balanced as follows: CaC2 + 2H2O → Ca (OH)2 + C2H2. Grams of water required to completely react with 82.4 g of CaC2 is 46.28 g.
What is a balanced reaction?
In balanced reaction, the number of each and every element on both side is balanced. In the given reaction to balance the number of H and O, add 2 to H₂O so that, all the species will be equal in number on both side.
Now, as per the balanced reaction, 2 moles of water is required to reacts with 1 mole of CaC2.
Mass of one mole of water = 18 g/mol.
2 mole = 36 g
Mass of one mole of CaC2 = 64.09 g/mol
Thus 36 g of water is required to react with 64.09 grams of calcium carbide. Mass of water required to react with 82.4 g of calcium carbide is calculated as follows:
Mass of water = (36 g×82.4 g)/64.09 g = 46.28 g
Hence, 46.28 grams of water is required to completely react with 82.4 g of calcium carbide.
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I really need help with this before 5:10
Show your work
Your big brother has been brageing about how he can bench press 4.000 grams at the gym. Sounds impressive.
but you know better. Use your skills to find how many pounds of weight he is actually pressing.
Explain what you think a compound is
Answer:
a thing that is composed of two or more separate elements; a mixture.
Explanation:
- Write down Rutherford's atomic model with diagram .also write down defects of Rutherford's atomic model. - write down neil bohar atomic model
this is the answer
sorry if the answer is wrong
Diffrentiate between atoms and ions.
what does it mean to say that a hypothesis is falsifiable
Answer: This means that the answer can be proven wrong.
Explanation:
Hope this helps!!
Answer:
is means it can be proven false
how to calculate molecular mass?
Please refer to the attachment!
Hope it will help u,
Thankyou======#Itz_Ravi❤️=======Find the force if the mass is 6 kg and the acceleration is 12 m/s/s?
Answer:
72 Newton
Explanation:
force=mass x acceleration due to gravity
Force applied on object is 72 Newton
Given that;
mass of thing = 6 kg
Acceleration = 12 m/s²
Find:
Force applied on object
Computation:
Force = mass × acceleration
Force applied on object = 6 × 12
Force applied on object = 72 Newton
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why are group viia elements very active nonmetals
The results of an investigation are the
(Blank)
Answer: ending results
Explanation: