Convection currents play a role in the circulation of fluids. Convection currents are the result of differential heating. ... Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.
There is your answer.
Answer:
The Earth's crust and upper part of the mantle are broken into large pieces called tectonic plates. ... The plates move because of convection currents in the Earth's mantle. These are driven by the heat produced by the decay of radioactive elements and heat left over from the formation of the Earth.
Explanation:
Which best describes a single atom of an element?
A. It is the simplest form of matter.
o
B. It can be changed into a compound.
C. It is composed of more than one type of atom.
D. It can be broken down into simpler mixtures.
Answer:
I believe the answer is A: *It is the simplest form of matter" not 100% sure but I think that's correct
Explanation:
Which type of plate boundary is associated with seafloor spreading at the source of the spread: convergent, divergent, or transform?
HURRY!
Are Genetic mutations are permanent changes to DNA.
Answer:
Yes
Explanation:
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.
Is it better for an element to be more abundant or less abundant?
I believe it's better for it to be more abundant because it's better to have more then less. Take water as an example. Water is an important factor to our survival and if we didn't have enough of that we would be in trouble. Or if we needed food but there wasn't enough more people would be dying from starvation. It's better to have a little more than a little less.
Which has more mass, one mole of carbon (C) or one mole of copper (Cu)?
Explain.
A compound is analyzed and found to be 50% sulfur and 50% oxygen. If the total amount of the sulfur oxide is 12.5 g, how many grams of sulfur are there? Show work.
Answer:
25.0g is the mass of sulfur
Explanation:
The sulfur and the oxygen are 50:50. That means there is 1 mole of S per mole of O.
To solve this question we need to convert the mass of O to moles, as moles of O = Moles of S, we can find the moles of S and its mass:
Moles O = Moles S:
12.5g O * (1mol / 16g) = 0.781 moles
Mass S:
0.781 moles * (32g / mol) =
25.0g is the mass of sulfurare both liquids and gases fluids
Answer:
Liquid and gases are both fluid and helps in transfer of different substances but solid is not a fluid medium because it is rigid
why copper ions move to the negative electrode in figure 1
Answer:
negative attraction
Explanation:
because a copper ion looses electrons, meaning it's negatively charged, and positives and negatives attract.
in your own words,define ecological solid waste management
Answer:
The giant horse conch weighs abpout 11 lbs
Explanation:
Burning match in physical or chemical change and why
Answer:
Answer is on the pic
Explanation:
I hope it's helpful!
How many formula units in 7.25 moles of Al2O3.
Answer:
If you're asking for the mass (grams)
then 739.21 g
Explanation:
No. of mols = mass/molar mass
Mass= Molar mass x No. of mols
Mass= 101.96 g/mol x 7.25 mols
Mass= 739.21 g
What is the oxidation number of s in na2s4o6?
Answer:
+2.5
Explanation:
So the oxidation number of S in Na2S4O6is +2.5.
Answer:
Explanation:
Oxidation number of Na = 1+ There are two of them, so it is 2*1 = 2
Oxidation number of O = 2- There are 6 of them so 6 * 2- = -12
There are 4 S's so the oxidation number is 4*S
Now set up a small equation
2 + 4s - 12 = 0
And solve.
2 - 12 + 4s =0
-10 + 4s = 0
4s = 10
4s/4 =10/4
s = 2.5
can some give 2 paragraph about science
Answer:
Explanation:Science is the scholarly and down to earth movement, including the efficient investigation of the structure and the laws of nature with intensive trial and pragmatic perception. Science is isolated into three branches: Natural sciences, Social sciences, formal sciences.
Science offers new information and revelations of many things we do not know. Day by day, science is progressing. Now science has helped man reach the moon, which was once unknown to man as a satellite. Every invention in technology or medical techniques is based on science and scientific research
After the phase change in the diagram below, the molecules will move...
?
Energy transferred in
Molecules moving
around each other
A faster, and the substance will be a solid
B faster, and the substance will be a gas
C slower, and the substance will be a liquid
D slower, and the substance will be a gas
Answer:
C is the correct answer
I hope this helps you:)
Explanation:
C slower, and the substance will be a liquid
What is the chemical formula for nitrogen hetasulfide
Answer:
N203
Explanation:
Answer:
n203
Explanation:
TIMED 30 pts
The table below shows the freezing points of four substances.
Substance Freezing point (°C)
Benzene
5.5
Water
0
Butane
–138
Nitrogen
–210
The substances are placed in separate containers at room temperature, and each container is gradually cooled. Which of these substances will solidify before the temperature reaches 0°C?
A benzene
B water
C butane
D nitrogen
Among the given substances, the substance which will solidify before the temperature reaches 0°C is benzene.
What is freezing point?Freezing point of any liquid is that point at which the liquid will convert into solid state at the normal atmospheric pressure.
Among the given substances butane and nitrogen has freezing point less than 0°C, water has 0°C and benzene has more than 0°C. When we cool down the temperature of the container before the 0 degree celsiuc than the beaker in which benzene is present cools gradually.
Hence benzene will solidify before the temperature reaches 0°C.
To know more about freezing point, visit the below link:
https://brainly.com/question/23035406
#SPJ2
What volume of a 3.00M KL stock solution would you use to make 0.300 L of a 1.25M Kl solution?
Answer:
0.125L or 125 mL
Explanation:
See the image for steps!0.125L of 3.00M KI stock solution is required to make 0.300 L of a 1.25M KI solution.
What is solution?A solution is a homogeneous mixture of one or more solutes dissolved in a solvent.
What is stock solution?A stock solution is a concentrated solution that will be diluted to a solution of lower concentration.
stock solution = diluted solution
What do you mean by dilution?Dilution is the process of decreasing the concentration of a stock solution by adding more solvent to the solution. The solvent added is the water. The more the solvent you add, the more dilute the solution is.The equation for dilution is M1V1=M2V2Where, M1 = concentration in molarity (moles/Litres) of the concentrated solution
V2 = volume of the concentrated solution,
M2 = concentration in molarity of the dilute solution
V2 = volume of the dilute solution.
The volume of 3.00M KI solution can be calculated using the dilution equation:
Given:
M1 = 3.00M, M2 = 1.25M, V1 = x, V2 = 0.300L
M1V1 = M2V2
3.00M(x) = 1.25M(0.300L)
x = 0.125L
Hence, 0.125L of 3.00M KI stock solution is required to make 0.300 L of a 1.25M KI solution.
To learn more about dilution here
https://brainly.com/question/15718488
#SPJ2
15. How many atoms are in Li(OH2)3?
Answer:
6 Atoms
Explanation:
Li has 3 atom
O has 1 atom
H has 2 atoms
Hope this Helps!!:)
EZ POINTS PLEASE HELP
What particle decomposes to produce the electron of beta radiation? A. electron
b. proton
C. neutron
D positron
Answer:
D
Explanation:
Beta radiation is the emission of the high-energy positron by the beat decay of the atom. The positron decomposes to produce an electron of beta radiation. Thus, option D is correct.
What is beta radiation?Beta radiation is the high-energy formation of the positrons and electrons by the radioactive decay of the high-speed and energy particles emitted by the decay of the nucleus.
The positron is a positive charged sub-atomic particle with mass as same as the electron. It is produced after the beta decay and follows the formation of electrons.
The beta radiations are produced from the radioactive decay that leads to light and particle formation in the form of electrons and positrons.
Therefore, option D. positrons are produced as a result of beta radiation.
Learn more about beta radiation here:
https://brainly.com/question/4072364
#SPJ2
A balloon is left in the sun and heats up from 29.4°C to 33.7%. If the balloon
was originally at 0.68L, what is the new volume of the balloon?
Answer:
0.78L
Explanation:
According to Charles law, the equation below can be used to calculate the the new volume of the balloon
V1/T1 = V2/T2 .........eqn(1)
Where T1= initial temperature= 29.4°C
T,2= final temperature= 33.7°C
V2= final volume= ?
V1= initial volume= 0.68L
Making V2 the subject of formula from eqn(1)
V2=( T2 × V1)/T1
= (33.7 × 0.68)/29.4
=0.78L
Hence, the new volume of the balloon is 0.78L
Severe droughts cause some lands to become deserts, and this process leads to
water shortages
lands becoming
deserts
food shortages
all of the above
2Na + Cl₂ --> 2NaCl, if you start with 0.50 mol of sodium and you ultimately produce 0.43 mol in lab, what is your percent yield?
Answer:
86% is the percent yield of the reaction
Explanation:
Percent yield is defined as 100 times the ratio of actual yield / theoretical yield.
Based on the reaction:
2Na + Cl₂ → 2NaCl
The theoretical yield is 0.50 moles because 0.50 mol of Na are added in the beginning. As 0.43 moles are produced, actual yield is 0.43 mol. And percent yield is:
0.43mol / 0.50mol * 100 =
86% is the percent yield of the reaction
If 0.150 moles of calcium oxide reacts with carbon dioxide gas, how many grams of calcium carbonate can be produced?
Answer:
15 g of CaCo₃
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
CaO + CO₂ —> CaCo₃
From the balanced equation above,
1 mole of CaO reacted to produce 1 mole of CaCo₃.
Next, we shall determine the number of mole of CaCo₃ produced by the reaction of 0.15 mole of CaO. This can be obtained as follow:
From the balanced equation above,
1 mole of CaO reacted to produce 1 mole of CaCo₃.
Therefore, 0.15 mole of CaO will also react to produce 0.15 mole of CaCo₃.
Finally, we shall determine the mass of 0.15 mole of CaCo₃. This can be obtained as follow:
Mole of CaCo₃ = 0.15 mole
Molar mass of CaCo₃ = 40 + 12 + (16×3)
= 40 + 12 + 48
= 100 g/mol
Mass of CaCo₃ =?
Mole = mass / Molar mass
0.15 = Mass of CaCo₃ / 100
Cross multiply
Mass of CaCo₃ = 0.15 × 100
Mass of CaCo₃ = 15 g
Thus, 15 g of CaCo₃ were obtained from the reaction.
How many O atoms are in 7.39 g CO2?
Explanation:
zoom id - 2162203625
pass- 12345
meet me there
Answer:
3ml of CO2
Explanation:
There are 3ml of CO2 in such a mass. Thus there are 6×NA individual oxygen atoms
Why do rivers have deltas?
Answer:
A delta is formed when the river deposits its material faster than the sea can remove it. ... Cuspate - the land around the mouth of the river juts out arrow-like into the sea. The Ebro Delta. Bird's foot - the river splits on the way to the sea, each part of the river juts out into the sea, rather like a bird's foot.
I hope it's helpful!
What does an increase of 1 pH number represent?
A. An increase in hydrogen ion concentration by a factor of 10 O B. A decrease in hydrogen ion concentration by a factor of 10 C. An increase of 1 mole per liter of hydrogen ions D. A decrease of 1 mole per liter of hydrogen ions
Answer:
B
Explanation:
An increase of 1 pH number represents A decrease in hydrogen ion concentration by a factor of 10 and the correct option is option B.
What is pH?pH is defined as the negative logarithm of H⁺ ion concentration.
pH is a measure of how acidic or basic a substance is. In our everyday routine, we encounter and drink many liquids with different pH. Water is a neutral substance. Soda and coffee are often acidic.
The pH is an important property, since it affects how substances interact with one another and with our bodies. In our lakes and oceans, pH determines what creatures are able to survive in the water.
Therefore, An increase of 1 pH number represents a decrease in hydrogen ion concentration by a factor of 10 and the correct option is option B.
Learn more about pH, here:
https://brainly.com/question/491373
#SPJ2
Mg3(PO4)2+ 3K2SO4= 3MgSO4+ 2K3PO4. How many moles of potassium phosphate (K3PO4) will be produced from 5.62 moles of magnesium phosphate (Mg3(PO4)2)?
Answer: 11.24 moles of [tex]K_3PO_4[/tex] will be produced from 5.62 moles of magnesium phosphate [tex](Mg_3(PO_4)_2)[/tex]
Explanation:
The balanced chemical equation for double displacement reaction is:
[tex]Mg_3(PO_4)_2+3K_2SO_4\rightarrow 3MgSO_4+2K_3PO_4[/tex]
According to stoichiometry :
1 mole of [tex]Mg_3(PO_4)_2[/tex] produce = 2 mole of [tex]K_3PO_4[/tex]
Thus 5.62 moles of [tex]Mg_3(PO_4)_2[/tex] will produce=[tex]\frac{2}{1}\times 5.62=11.24moles[/tex] of [tex]K_3PO_4[/tex]
Thus 11.24 moles of [tex]K_3PO_4[/tex] will be produced from 5.62 moles of magnesium phosphate [tex](Mg_3(PO_4)_2)[/tex]
The number of moles of potassium phosphate that will be produced will be 11.24 moles
Calculating the moles based on stochiometryGiven the balanced equation expressed as:
[tex]Mg_3(PO_4)_2+ 3K_2SO_4\rightarrow 3MgSO_4+ 2K_3PO_4.[/tex]
Based on stochiometry, 1 mole of magnesium phosphate produces 2 moles of potassium phosphate
Given that there are 5.62 moles of magnesium phosphate (Mg3(PO4)2), the number of moles of potassium phosphate that will be produced will be2(5.62) = 11.24 moles
Learn more on stochiometry here: https://brainly.com/question/16060223
Hi, what's your worse break up story?
Describe the sizes of the first 4 planets?
Answer:
Explanation:the answer
Answer:
Bro.
Mercury – 1,516mi (2,440km) radius; about 1/3 the size of Earth.
Venus – 3,760mi (6,052km) radius; only slightly smaller than Earth.
Earth – 3,959mi (6,371km) radius.
Mars – 2,106mi (3,390km) radius; about half the size of Earth.
Jupiter – 43,441mi (69,911km) radius; 11x Earth's size
Explanation:
3. Which of the following represents a covalent compound?
a. 02
b. CO2
C. Cl2
d. Naci
For the Question "Which of the following represents a covalent compound?" we have
CO_2Option BFrom the Question we are told
'3. c
Generally
a covalent compound is a kind of bond in which valence electrons are shared b/w the party atoms forming the bond
Therefore
We see covalent compound in CO_2 as they match perfectly the phenomenon that is covalent bonding
Therefore
For the Question "Which of the following represents a covalent compound?" we have
CO_2Option BFor more information on this visit
https://brainly.com/question/14418346?referrer=searchResults