Answer:
Pangea
Explanation:
Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and began to break apart about 175 million years ago. Forming into what we have today :)
PLEASE ANSWER ALL QUESTIONS WILL MARK BRAINLY
1. Calculate the density for the following cube if it’s mass is 1.25 g and each side has a measurement of 3 cm.
2. Would the cube in question 1 float or sink in water? ( Calculate the density for the following cube if it’s mass is 1.25 g and each side has a measurement of 3 cm.)
3. If an irregular-shaped piece of gold is placed into a graduated cylinder and it displaces 15 ml of water, what is the volume of the object?
4.How many elements are in the particle with the chemical formula C2H7N3?
5.How many atoms are in the particle with the chemical formula C2H7N3
Answer:
1. 2.89
2. Will it float in fresh water? Yeah, sure it will!
3. 5g/ml
4. 3 because the letters represent the elements
5. 12
Explanation:
Waves are caused by blank and tides are caused by blank
Answer:
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. As wind blows across the surface of the ocean or a lake, the continual disturbance creates a wave crest. ... The gravitational pull of the sun and moon on the earth also causes waves.
Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). ... Tidal forces are based on the gravitational attractive force.
If the Tides is working then out “ High and low tides are caused by the Moon. The Moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the Moon and the side farthest from the Moon. These bulges of water are high tides“.
If the reaction produces 400.0 mL of 1.5 M MgCl2, how many moles of HCl reacted?
(A) 0.30 moles
(B) 0.60 moles
(c1.20 moles
(D) 2.40 moles
The number of moles of HCl produces 400.0 mL of 1.5M MgCl₂ is equal to 1.20 moles. Therefore, option (C) is correct.
What is a mole?A mole can be defined as a standard unit that is used to find a huge number of quantities of molecules, atoms, ions, or other particular particles.
The number of entities in one mole was found to be equal to 6.023 × 10²³ which is called Avogadro’s constant.
The chemical equation of magnesium and HCl is:
Mg (s) + 2HCl (aq) → MgCl₂ (aq) + H₂(g)
The volume of the MgCl₂ solution, V = 400 ml = 0.4 L
The concentration of MgCl₂ = 1.5 M
The number of moles of MgCl₂ = 1.5 × 0.4 = 0.6 moles
One mole of MgCl₂ is produced from HCl = 2
0.6 moles of MgCl₂ is produced from HCl = 2 × 0.6 = 1.20 moles
Therefore, 1.20 moles of HCl will be reacted to produce 0.6 moles of MgCl₂.
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Analyze the given diagram of the carbon cycle below.
An image of carbon cycle is shown. The sun, a cloud, two trees, one towards left and the other towards right, an animal, lake, and a factory are included. Arrow A points from the sun to the left tree. Arrow B points from the air above the clouds to the left tree. Arrow C points from the factory towards the air above the clouds. Arrow D points from the air to the lake labeled Carbonates in Water. Arrow E points from the label Dead Organism under the animal to label Fossils and Fossil Fuels. Arrow F points from the right tree to the air.
Part 1: Which process does arrow F represent?
Part 2: Explain how matter is conserved during the process.
Part 3: Justify why this process is a recycling of carbon in the carbon cycle.
Use complete sentences to explain your answer. (10 points)
Answer:
Part 1:
Arrow F represents Cellular Respiration, showing how the tree produces carbon after it has finished the process of Cellular Respiration.
Part 2:
Matter is conserved in this image because it shows the process of Photosynthesis and cellular respiration. These are both examples of The Law of Conservation of Mass. During both of these processes, the mass of the reactants is the same as the mass of the products.
Part 3:
This process shows the carbon cycle by showing how carbon transfers to many different types of matter and back again. It shows the process of cellular respiration, which produces carbon using the products of photosynthesis, which uses the carbon produced by cellular respiration. This shows a cycle because each of them depends on the other.
Write the product for each synthesis reaction . Balance the chemical equation . a) Be+O 2 Li+Cl 2 c) Mg+N 2 d) Al+Br 2 K+O 2
Answer:
j,
Explanation:
Which two are isotopes of one another?
a. Atoms 1 & 2
b. Atoms 2 & 3
c. Atoms 1 & 3
d. Atoms 1 & 4
plz i need help
eggs:
ranch dressing
windex
Answer:
Egg is heterogeneous.
Ranch Dressing is heterogeneous
Windex is homogeneous.
The splitting apart of an atom's nucleus is called
Fizzing
Fission
Fusion
Atomic
Answer:
it is option B
(Fission)
hope it helps
if you were to slowly add 0.3 M NaOH to 35 ml if 0.23M HCl how many ml of NaOH solution would be needed to reach the equivalence point??
M1V1 = M2V2
M1 = 0.23 M HCl
V1 = 35 mL
M2 = 0.3 M NaOH
V2 = ?
(0.23 M)(35 mL) = (0.3 M)V2 —> V2 = 27 mL NaOH
If you were able to see what was happening with the molecules of two liquids of
the same amount but with different thermal energies, what would you see?
Answer:
In a gas, the distance between molecules, whether monatomic or polyatomic, is very large compared with the size of the molecules; thus gases have a low density and are highly compressible. In contrast, the molecules in liquids are very close together, with essentially no empty space between them:
hello, do you think you know the order of this?
Answer:
1. A
2. B
3. D
4. C
Explanation:
Just trust me. Good luck on your test! (I go to K12 as well.)
The element which has atomic number 17 is considered from... A. Metals B. Non-metals C. Noble gas D. No correct answer Please explain with your answer.
Answer:
B. Non-metals
Explanation:
The element with the atomic number of 17 is Cl.
Chlorine belongs to the group 7 in the periodic table. It is a non metal.
Correct option: B. Non-metals
What causes the differences in physical characteristics like hair color among people?
ООО
different versions of genes
O variations in DNA length
different numbers of chromosomes
variations in cell nucleus size
Answer:
The answer is a
Explanation:
what are cells
1. the smallest things that can carry out life processes
2. parts of a molecule
3. parts of an atom
1.the smallest things that can carry out life proccess
What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? The number of neutrons and electrons The number fo protons and neutrons The number of electrons only The number of protons and electrons
Answer:
The number of protons and neutrons.
Explanation:
Neutrons and Protons can't be removed from nucleus from chemical reactions because they are held together super strong and tight. However, nuclear reactions are strong enough to separate them.
hope this helps :)
Answer:
The number of protons and neutrons
Explanation:
Substance P is carbon.
Suggest what substances Q and R could be. Give their names.
substance Q .......................................................................................
substance R .......................................................................................
Explanation:
substance Q could be oxygen (O2)
substance R could be carbon dioxide (CO2)
Substance Q could be oxygen ([tex]O_2[/tex])
Substance R could be carbon dioxide ([tex]CO_2[/tex])
What are molecules?The smallest particle of a substance that has all of the physical and chemical properties of that substance.
There are 2 oxygen atoms in 1 molecule of oxygen. It is a di-atomic gas.
Carbon dioxide is a chemical compound composed two oxygen atoms covalently bonded to one carbon atom.
Hence, substance Q could be oxygen ([tex]O_2[/tex]). substance R could be carbon dioxide ([tex]CO_2[/tex])
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NH3+
H2(SO4) =
(NH4)2(SO4)
Balance
Answer:
2 NH3 + H2SO4 = (NH4)2SO4
Explanation:
The reaction type is synthesis
The student who answers the riddle will get the prize ? underline pronoun
.
answer:
the student who answers the riddle will get the prize
explanation:
who is the pronouna pronoun is something that substitutes for a nounAccording to VSEPR theory, what is the bond angle of CCl4?
a. 90
b. 109.5
c. 120
d. 180
A student bends a paperclip rapidly back and forth. When he touches the point where he was
bending the paperclip, he finds that its temperature has increased. This indicates that the
atoms in that part of the paperclip have increased in what kind of energy
Answer:
conservation .
Explanation:
Which of the following describes an animal that is contributing to the cycling of water in the hydrologic cycle?
OA. A monkey is cooled as sweat evaporates from its skin.
ОВ. A sea anemone lives in a habitat of seawater.
OC. A fish swims upstream in a flowing river.
OD.
A butterfly hides under tall grass during precipitation.
HELPP!!
Answer:
OA.
Explanation:
hydrologic cycle invloves evaporation which the wonkey is doing and when t hat condenses it is turned into water which we drink. So if you think very hard about it every time you drink a glass of water, you could be drinking monkey sweat :)
3.) Plants make food through photosynthesis, and photosynthesis takes place mostly in plant in plant leave, but when plants lose their leaves in winter, they don’t die.
This is evidence that
A. Someone gives the plant food everyday.
B. Plants store food later use.
C. Plants can use heat in the ground to make food.
Answer:
B
Explanation:
The muscular system and the skeletal system work together so the body can do what?
move
pump blood
get oxygen
digest food
Answer:
Move
Explanation:
Birds' feet change slowly over time, depending on their habitat. Ptarmigans live in snowy areas and eat pine needles, twigs, and insects. Roadrunners live in deserts and plains and eat anything they can catch. Peregrine falcons live on high perches and use their talons for grasping their prey. Mallards live near water and swim and dive for food.
What is an inherited behavior or physical change that helps an organism survive and reproduce in its environment?
A. adaptation
B. variation
C. evolution
D. species
Answer:
A
Explanation:
How many molecules are in 6.25 grams of N2O5?
Answer:
0.0578647982046175
Explanation:
HELP!! URGENT!! WILL GIVE BRAINIEST
Answer:
11. Mn (CH 3 CO 2) 2. (H 2 O) n where n = 0, 2, 4.
12. Au2O
Explanation:
Hope this helps
what is the chemical name for Li2CO2
Answer:
Lithium Carbonite
Explanation:
Answer:
Lithium
Explanation:
What is the molar ratio between carbon dioxide to water?
2 C4H10 + 13 O2 = 8 CO2 + 10 H2O
Answer:
8:10
Explanation:
The coefficients of a balanced chemical equation give us the mole ratios. The coefficient of carbon dioxide here is 8 and water is 10.
What is the chemical formula of stannic nitride?
Answer:
Stannic nitride, Sn3N4
Explanation:
I need help on this question
Answer:
When a front passes over an area, it means a change in the weather. Many fronts cause weather events such as rain, thunderstorms, gusty winds, and tornadoes. At a cold front, there may be dramatic thunderstorms. At a warm front, there may be low stratus clouds. Usually, the skies clear once the front has passed.
Explanation:
Plz make me brainliest :)
Have a nice day
Answer:
Email your teacher they will give you the answers try it yourself
Explanation: