Answer:
electricity
Explanation:
or maybe food
State the numbers of protons, neutrons & electrons in an atom of Carbon-14
Answer:
Neutral carbon-14 contains six protons, eight neutrons, and six electrons; its mass number is 14 (six protons plus eight neutrons). These two alternate forms of carbon are isotopes.
I hope it's helpful!
Describe the relationship between speed and kinetic energy.
A) A positive linear relationship
B) A negative linear relationship
C) A negative but not linear relationship
D) A positive but not linear relationship
Answer:
D) A positive but not linear relationship
Explanation:
This comes from the equation Ek=1/2mv^2
Where Ek is Kinetic Energy, m is mass, and v is the speed (or velocity).
As we can see in the equation, the relation is not linear but quadratic and it is positive.
Answer:
D) A positive but not linear relationship
Explanation:
Speed is equal to distance divided by time. ... Therefore, the kinetic energy of an object is proportional to the square of its velocity (speed). In other words, If there is a twofold increase in speed, the kinetic energy will increase by a factor of four.
Place the
elements in order from low number of valence electrons to high number of valence electrons.
1
Neon
2
Aluminum
3
Silicon
4.
Potassium
5
Magnesium
what does kyle learn at the end
Answer:
Umm who's Kyle?
Explanation:
Answer:
his skills aren’t as valuable to the team as he thought
Explanation:
What are the condiction requried for
work to be done
Answer:
the object should be displaced on which the force is applied
Explanation:
HOPE IT HELPS YOU
what is the sum of 16+ -20?
answer:
-4
hope this helps
Question:
One of the properties we associate with diamonds is their luster. How would you define this
term?
Plz help?!
Answer:
luster means either sheen/glow or reflected light
Explanation:
luster is the appearance of mineral's surface in terms of light-reflective qualities
How many mg of metallic ions are in 1.0 mL of 0.10 M LINO3
Answer:
0.6941 mg
Explanation:
First we calculate how many LiNO₃ moles there are, using the given concentration and volume:
1.0 mL * 0.10 M = 0.10 mmol LiNO₃As 1 mol of LiNO₃ contains 1 mol of Li, in the problem solution there are 0.10 mmol of Li (the only metallic ion present).
Now we convert Li milimoles into miligrams, using its atomic mass:
0.10 mmol Li * 6.941 mg/mmol = 0.6941 mgBased on the equation below, how many moles of aluminum sulfate (Al2(SO4)3) will be produced from the reaction of 5.8 moles of aluminum hydroxide (Al(OH)3) and excess sulfuric acid (H2SO4)? 2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O
Answer:
2.9 moles of aluminum sulfate will be produced from the reaction of 5.8 moles of aluminum hydroxide and excess sulfuric acid.
Explanation:
The balanced reaction is:
2 Al(OH)₃ + 3 H₂SO₄ → Al₂(SO₄)₃ + 6 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:
Al(OH)₃: 2 moles H₂SO₄: 3 moles Al₂(SO₄)₃: 1 mole H₂O: 6 molesThen you can apply the following rule of three: if by reaction stoichiometry 2 moles of Al(OH)₃ produce 1 mole of Al₂(SO₄)₃, then 5.8 moles of Al(OH)₃ how many moles of Al₂(SO₄)₃ will they produce?
[tex]moles of Al_{2} (SO_{4} )_{3} =\frac{5.8moles of Al(OH)_{3} *1 mole of Al_{2} (SO_{4} )_{3}}{2moles of Al(OH)_{3}}[/tex]
moles of Al₂(SO₄)₃= 2.9
2.9 moles of aluminum sulfate will be produced from the reaction of 5.8 moles of aluminum hydroxide and excess sulfuric acid.
Answer:
67
Explanation:
because that right
of what does sand consist
Answer:
like ground rocks and shells I think.
Explanation:
What is the mass in grams of a 10.2cm3 block of copper
Answer:
91.4
Explanation:
Givens
d = 8.96
v = 10.2 cm^3
m =?
Formula
d = m / V
Solution
8.96 = m / 10.2 Multiply both sides by 10.2
8.96 * 10.2 = m
m = 91.392 grams
m = 91.4 grams rounded.
Alleles are different forms of ribosomes.
1 point
A. True
B. False
Answer:
true
Explanation:
i did the test
Answer: False
Explanation:
What is the percent composition of C4H10? (4 points)
44.6% C and 45.4% H
57.3% C and 42.7% H
82.7% C and 17.3% H
89.4% C and 10.6% H
Answer:82.7% C and 17.3% H
Explanation:
C4 = 12.0107g/mol x 4 = 48.0428 g/mol
H10 = 1.00794 g/mol x 10 = 10.0794 g/mol
Molar Mass of Butane, C4H10 = 48.0428 g/mol + 10.0794 g/mol= 58.1222 g/mol
percent composition of Carbon is = ( mass of carbon contained in butane / molar mass of Butane) x 100
=(48.0428 /58.1222) x 100% = 0.8265 x 100
=82.65% =82.7% of Carbon.
Percent composition of Hydrogen = (mass of Hydrogen contained in Butane / molar mass of Butane )x 100
( 10.0794/58.122 ) x 100% =0.1734 x 100
= 17.3% OF Hydrogen.
Answer:
C- 82.7% C and 17.3% H
Explanation:
I took the Quiz
1.) What is the maximum number of grams of liquid water at 10C that can be heated to
30C by the addition of 84 joules of heat?
Answer:
m = 1 gram
Explanation:
Given that,
Heat, Q = 84 J
The temperature increases from 10°C to 30°C.
We need to find maximum number of grams of liquid water. We know that the heat required is given by :
[tex]Q=mc\Delta T[/tex]
c is specific heat of water, c = 4,200 J/kg°C
Use the above formula to find m. So,
[tex]m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{84}{4,200\times (30-10)}\\\\m=0.001\ kg[/tex]
or
m = 1 gram
So, the required mass is 1 gram.
A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to____.
Answer:
The globs rises due to convection.
Explanation:
Convection is when warmer parts move to the top and the cooler parts move to the bottom. Since the globs are going to be warmer, they rise to the top.
Hope this helps :D
1.25mole Nocl was placed in a2.50l reaction chamber at 427c. After equilibrium was reached .1.10moles of Nocl remained.Calculate the equilibrium constant Kc for the reaction. 2Nocl(g)=2No(g)+cl2(g)
Answer:
Kc → 5.58×10⁻⁴
Explanation:
Equilibrium reaction is:
2NOCl (g) ⇄ 2NO (g) + Cl₂(g)
Initially we have 1.25 moles of NOCl
After the equilibrium, we have 1.10 moles. So, during the process:
(1.25 mol - 1.1 mol) = 0.15 moles have reacted.
As ratio are 2:2, and 2:1, 0.15 moles of NO and (0.15 /2) = 0.075 moles of chlorine, were produced in the equilibrium.
Finally in equilibrium we have: 1.10 moles of NOCl, 0.15 moles of NO and 0.075 moles of Cl₂. But these amount are not molar, so we need molar concentration in order to determine Kc:
1.10 mol /2.50L = 0.44 M
0.15 mol / /2.50L = 0.06 M
0.075 mol /2.50L = 0.03 M
Let's make expression for Kc → [Cl₂] . [NO]² / [NOCl]²
Kc = (0.03 . 0.06²) / 0.44² → 5.58×10⁻⁴
PLS HELP DECODE THIS
The atomic number of an element tells you the number of:. P R O (G4) (E3) N S
LITHIPODIUS NULLA
Which members of the population are the most adapted? Least adapted?
Answer:According to the Darwin’s theory “ the survival of the fittest” , any organism would survive through the process of natural selection by adapting itself to the changing environment in order to become the fittest among all of its native species.
Thus, in order to survive even after some major environmental changes, an organism is required to adapt to the new conditions.
Hence, option 2 is the correct answer which talks about adaptation as per the changing environmental condition
Explanation:
1. Which of the statements is correct?
A. Only asteroids collide with Earth.
B. Cornets are ball of ice, dust, and metal.
C. Meteoroids are streak of light produced when comet enters Earth's
atmosphere.
D. Only asteroids can be found in the solar system.
2. What do you call the fragments or debris that resulted from the collision of
asteroids or comets?
A. meteors
B. meteoroids
C. Oort Cloud
D. Kuiper Belt
3. What is the bright glow around the "head" of a comet?
A. coma
B. crown
C. halo
D. ring
4. What is the name of the famous comet that can be seen from Earth every 75 to
76 years?
A. Hale Boop
B. Comet Halley
C. Comet Tempel 1
D. Shoemaker Levy-9
5. What is the correct term for a “shooting star"?
A. asteroid
B. comet
C. falling star
D, meteor
6. What is an Asteroid Belt?
A. It has rocks crossing the Sun, Mars, and Jupiter.
B. It has rocks crossing the Sun, Jupiter, and Uranus.
C. It is an area between Mars and Jupiter where most asteroids are found.
D. It has rocks between the Earth and Jupiter where most asteroids are found.
Answer:
down
Explanation:
Answer
(a) F
Pole Star is a star in the galaxy and hence not a part of the solar system.
(b) T
Mercury is the smallest planet in the solar system and Jupiter is the largest planet in the solar system.
(c) T
Uranus is the farthest planet to the sun in the solar system and Mercury is the closest planet to the earth in the solar system.
(d) T
INSAT or Indian National Satellite System is a series of artificial Indian satellites used for telecommunications, meteorology and search and rescue operations.
(e) F
There are eight planets in the solar system. They are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Note the pluto is considered as a dwarf planet.
(f) F
Orion can be seen with naked eyes. It is one of the most magnificent constellations in the sky. It has seven or eight bright stars. Orion is also called the Hunter
In this exercise, we have to use our knowledge of astronomy to identify the correct alternatives, so we find that:
1)C
2)B
3)A
4)B
5)D
6)C
Then, based on astronomy knowledge, we can identify that the true alternatives correspond to:
1)A meteor happen a streak of light above bring into being by a meteor superlative through Earth's general feeling or mood.
2)Meteoroids exist lumps of rock or iron that revolution the brightest star, just as celestial body orbiting a star, asteroids, and comets act.
3)A coma happen the fuzzy-anticipate glow that maybe visualize situated on sides the head of a comet.
4)Halley's Comet, that happen 8 kilometres (5 miles) expansive and 16 km long, travels around the Sun each 75 to 76 age in an lengthened circuit.
5)Shooting stars exist existent what astronomers call meteors. Most meteors upset fashionable the gases around the earth before they reach the ground.
6)The celestial body orbiting a star belt happen a torus-form domain in the Solar System, situated about middle from two points the orbits of the celestial body orbiting a star Jupiter and Mars.
See more about astronomy at brainly.com/question/5165144
Select the boxes next to three properties that are typical of metals ??PLS I Will GIVE BRAINLY TO FIRST
Answer:
option b is correct
Explanation:
Metals are particularly good conductors of heat because their particles are very closely packed so the vibrations are passed on very quickly. They also contain large numbers of free electrons. These drift slowly through the structure, giving metals their strength and other properties. As the metal is heated, the free electrons closest to the heat source are heated. This makes them move faster and they travel through the metal, colliding with both atoms and other electrons. This naturally makes these vibrate faster (or move through the metal faster in the case of collisions with other free electrons). Thus, the heat is passed quickly through the metal.
hope it helps you
please mark me as brainlist
How many atoms are there in 48 grams of carbon?
Answer:
20
Explanation:
Which of these careers would a student studying biotechnology
most likely pursue?
A. electrical engineering
B. astronomy
c. agricultural research
D. geology
Agricultural research careers would a student studying biotechnology most likely pursue. Therefore, option C is correct.
What is agricultural research ?The United States Department of Agriculture's main internal research organization is the Agricultural Research Service. One of the four organizations in the USDA's mission area for research, education, and economics is ARS.
A wide definition of agricultural research is any research activity that aims to increase crop output and quality through genetic improvement, improved plant protection, irrigation, storage techniques, farm mechanization, effective marketing, and better resource management.
Agricultural research's main goals are to advance knowledge and advance technology. It deepens comprehension of the linkages and interconnectedness between farming communities and production systems.
Thus, option C is correct.
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anyone know how to do this?
Answer:
3.26×10⁵ L
Explanation:
From the question given above, the following data were obtained:
Initial volume (V₁) = 3.5×10⁵ L
Initial temperature (T₁) = 27 °C
Initial pressure (P₁) = 101 KPa
Final temperature (T₂) = –10 °C
Final pressure (P₂) = 95 KPa
Final volume (V₂) =?
Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:
T(K) = T(ºC) + 273
Initial temperature (T₁) = 27 °C
Initial temperature (T₁) = 27 °C + 273
Initial temperature (T₁) = 300 K
Final temperature (T₂) = –10 °C
Final temperature (T₂) = –10 °C + 273
Final temperature (T₂) = 263 K
Finally, we shall determine the new volume of the tank. This can be obtained as follow:
Initial volume (V₁) = 3.5×10⁵ L
Initial temperature (T₁) = 300 K
Initial pressure (P₁) = 101 KPa
Final temperature (T₂) = 263 K
Final pressure (P₂) = 95 KPa
Final volume (V₂) =?
P₁V₁ / T₁ = P₂V₂ / T₂
101 × 3.5×10⁵ / 300 = 95 × V₂ / 263
117833.333 = 95 × V₂ / 263
Cross multiply
95 × V₂ = 117833.333 × 263
95 × V₂ = 30990166.6
Divide both side by 95
V₂ = 30990166.6 / 95
V₂ = 3.26×10⁵ L
Thus, the new volume of the tank is 3.26×10⁵ L
A basketball has a mass of 0.625 kg. Most basketball hoops are at a height of 3 m above the ground. What is the gravitational potential energy of a basketball just before it goes through the hoop?
The gravitational potential energy of a basketball : PE = 18.375 J
Further explanationGiven
height = h = 3 m
mass = 0.625 kg
Required
The potential energy
Solution
The energy produced from its position is called potential energy (PE)
which can be formulated as:
PE = m. g. h (g = 9.8 m/s²)
Input the value :
PE = 0.625 x 9.8 x 3
PE = 18.375 J
Please help quickly! i will mark brainliest
Answer:
Energy of the Reactant: increases
Energy of the product: not at all
Rate of reaction: increases
Enthalpy: not at all
Activation energy: decreases
Explanation:
Catalyst is a substance that increases the rate of reaction than normal to form a product.
Catalyst affect differently to different factors of reaction. A catalyst is meant to increase rate of reaction by lowering the activation energy, so that collision between reactant increase and that passes the energy barrier to form the product faster.
Catalyst has no effect on Enthalpy as change in enthalpy only depends on the chemical compositions of the reactants and products.
Catalyst also increases energy of reactant so that they can collide faster than before and do not affect the energy of product at all.
Hence, the correct answer is:
Energy of the Reactant: increases
Energy of the product: not at all
Rate of reaction: increases
Enthalpy: not at all
Activation energy: decreases
Which statement describes Sparta’s strategy for the Peloponnesian War?
Sparta used its navy to attack Athens along the coastline.
Sparta ruined Athens’s farmland to try to get Athens to fight on land.
Sparta sailed around the peninsula to attack Athens from two sides.
Sparta attacked Athens directly and attempted to knock down the walls.
Answer:
it is the Sparta ruined Athens’s farmland to try to get Athens to fight on farm land
Explanation:
just did
Answer:
the answer is B
Explanation:
A glass sphere is filled to full volume with a gas. The pressure of the gas inside the sphere is 30.0 atm, and the temperature is 30.0°C. The sphere is taken outside on a cold day. The temperature of the gas decreases to 10.0°C. What is the new pressure of the gas? Assume that the volume is constant.
Answer:
28atm
Explanation:
Using Gay lussac's law equation as follows:
P1/T1 = P2/T2
Where;
P1 = initial pressure (atm)
T1 = initial temperature (K)
P2 = final pressure (atm)
T2 = final temperature (K)
Based on the information provided in this question;
P1 = 30.0 atm, T1 = 30.0°C, P2 = ?, T2 = 10.0°C
NOTE: Absolute temperature i.e. Kelvin is required for this law
T1 = 30°C + 273K = 303K
T2 = 10°C + 273K = 283K
Using P1/T1 = P2/T2
30/303 = P2/283
Cross multiply
P2 × 303 = 30 × 283
303P2 = 8490
P2 = 8490/303
P2 = 28.02
New pressure of the gas = 28atm
all atoms in the main group want _____ electrons in their outset shell
explain how sand is form
Answer:
Sand comes from many locations, sources, and environments. Sand forms when rocks break down from weathering and eroding over thousands and even millions of years. Rocks take time to decompose, especially quartz (silica) and feldspar .
Explanation:
The diagrams below represent some respiratory structures in three organisms. The labeled structures in these organisms all have a similar function. What is the main function of the labeled structure(s) in each organism?
A)Circulation of blood
B)Digestion of food
C)Production of food
D)Exchange of gases
Answer:
D
Explanation:
Lungs, Moist skin , Gills is in the exchange of gases system
The correct answer is D.
The structure of human lungs is first demonstrated in an organism.
Lungs are the respiratory organs. They are made up of alveoli.Main Function :The main function of lungs is the gaseous exchange. This gaseous exchange occurs in the alveoli. Oxygen from atmosphere comes into the lungs through nostrils, nasal cavities, pharynx, larynx, trachea, bronchi and finally reaches the lungs. Then gaseous exchange occurs between blood and alveoli. Oxygen enters into the blood and carbon dioxide leaves the blood.The structure of Earthworms Moist skin is second demonstrated in an organism.
The earthworm has no special respiratory organs like lungs or gills. Respiration takes place through the body wall. The outer surface of the skin is richly supplied with blood capillaries which aid in the diffusion of gases. Oxygen diffuses through the skin into the blood while carbon dioxide from the blood diffuses out. The skin is kept moist by mucous and coelomic fluid and facilitates exchange of gases.The structure of Fish Gills is third demonstrated in an organism.
The gill filaments in fish have functions like lungs in people: it's the organ responsible for absorbing oxygen and expelling carbon dioxide. The gills also regulate levels of mineral ions and the pH of the blood, as well as being the primary site of nitrogenous waste excretion, in the form of ammonia.Learn more about Respiratory System here:
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