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Related Questions
Please, I need at least accurate answers for my Sound Knowledge Check for my Science class.
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Answer:
1.A
2.A
3.C
4.C
5.B
6.A
can anyone draw out the answer for me please because I'm confused your supposed to make a lewis dot structure out of the lines and dots showing electron transfer to create that iconic bond
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Answer:
hey i believe there is a video on you tube with a step for step answer for that
Explanation:
that will help better than me i have a hard time explaining things i'm really sorry i hope i helped you again i'm really sorry
.Which of the following is true about elements?
They are impure substances.
They cannot be classified by their properties alone.
They cannot be broken down into simpler substances.
They have more than one kind of particle.
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help please just help me my saviors!
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Relate pressure to the area over which a force is applied.
As ___________ increases, ___________ decreases.
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A. When ammonium nitrate (NH4NO3) explodes, the products are nitrogen, oxygen, and water. When 40 grams of ammonium nitrate explode, 14 grams of nitrogen and 8 grams of oxygen form. How many grams of water form? (NH4NO3 N2 + O2 + H2O)
B. Hydrogen and oxygen react chemically to form water. How much water would form if 14.8 grams of hydrogen reacted with 34.8 grams of oxygen? (H2 + O2 H2O)
Please answer both A and B
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Answer:
yea yea
Explanation:
Flammabilty. Is a chemical property that tells whether a substance reacts in the presence of carbon dioxide try or false
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Answer:
False
Explanation:
Flammability is a chemical property that tells whether a substance reacts in the presence of extreme heat, spark, or another form of ignition.
Flammability occurs under extreme amounts of heat spark, and any other forms of ignition. A fire needs oxygen to spread not carbon dioxide.
can anyone draw out the answer for me please because I'm confused your supposed to make a lewis dot structure out of the lines and dots showing electron transfer to create that iconic bond
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Answer: are you allowed to type in letters?
An example of an ionic bond would be Li+ f- -> LiF or Ca+2 + s-2 -> CaS
Remember that ionic bonding is all about there charges
What kind of cell is represented by the diagram shown above?( I have 5mins plz answer quick).
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it is a plant cell shown
Answer:
It's plant.
Explanation:
I already did this work so it is Plant Cell
Can someone please help me on these two please
Which of the following geologic processes is the BEST evidence that continents change position over time?
A. formation of deltas
B. volcanic eruption
C. erosion by glaciers
D. sea floor spreading
Scientists have observed that when oceanic plates and cotinental plates collide, the oceanic plate is driven under the continental plate. The MOST LIKELY reason for this phenomenon is -
A. the convection currents in the mantle.
B. water applies a downward force on the oceanic plate.
C. the oceanic plate is more dense than the continental plate.
D. the continental plate is wider than the oceanic plate.
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2. C. The continental plate is wider than the oceanic plate
To solve this we must be knowing each and every concept related to continents. Therefore, the correct option is option D among all the given options that is sea floor spreading.
What is continents?A huge landmass that is distinguished from other landmasses by seas is referred to be a continent. Seven continents make up the Earth's land mass. Some are connected and split merely by an arbitrary line, while others, like a large island, are completely encircled by sea.
On some continents, there are numerous countries, whereas on others, there are few. The sizes of the continents vary greatly; Asia is larger than Australia by more than five times. Sea floor spreading is the geologic processes that is the best evidence that continents change position over time.
Therefore, the correct option is option D among all the given options that is sea floor spreading.
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This scientist is best known for his three laws of motion and his work on gravity. He discovered that white light was made up of colors. He was also a famous mathematician. Who was this scientist?
A) Albert Einstein
B) Galileo Galilei
C) Sir Isaac Newton
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Answer:
C.
Explanation:
Galileo was the telescope guy, Einstein was way ahead of the discovery of the three laws of motion and the three laws of motion were created between 1666-1686 and that leaves Sir Isaac Newton
HURRY!!
What happens when light from the Sun passes through any type of matter?
O The light slows down.
O The light speeds up.
O Most of the light is absorbed.
O Most of the light is reflected.
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When light from the Sun passes through any type of matter, The light slows down.
What are Electromagnetic radiations?Electromagnetic radiation is a type of energy that is all around us and takes many forms, such as radio waves, microwaves, X-rays and gamma-rays. Sunlight is also a form of electromagnetic energy, but visible light is only a small portion of the electromagnetic spectrum, which contains a broad range of wavelengths.
In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves. In order from highest to lowest wavelength, the series is just opposite.
Light is also a Electromagnetic radiation.
Therefore, When light from the Sun passes through any type of matter, The light slows down.
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How do you determine the number of protons, electrons and neutrons in a specific atom?
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Answer:
The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.
Explanation:
What is the R-group of an amino acid?
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Answer:
Structure of an Amino Acid
Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH.
Explanation:
hope this helped ✨
Answer:
Every amino acid has another atom or group of atoms bonded to the central atom, the R-group. This "R-group", also known at the side chain, gives each amino acid proteins specific characteristics (size, polarity, pH).
Explanation:
Find the part of the interview where Tom Zambrano talks about architectural wind. Use the information to answer the question.
Interview with Tom Zambrano
Why is it expensive to bring electricity into urban areas?
i will give brainliest to best answer
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Answer:
Power plants are not located in cities. Power has to travel a long distance over power lines to reach cities.
Power has to travel far to reach cities.
Power plants are not located in cities.
Explanation:
Sample Response: Power plants are not located in cities. Power has to travel a long distance over power lines to reach cities.
Which of the changes of state requires the removal of energy?
condensation and freezing , condensation and evaporation, or condensation and melting ?
Answers
Answer: condensation and melting
Explanation: it requires the most energy
Answer:
condensation and freezing, hope this helps
Explanation:
You are on a flight to Los Angeles, California. As the plane gets ready to land, it flies out over a large body of water. You look out the window and can see only water in the distance. You are over an ocean.
Which ocean can you see?
Atlantic ocean
southern ocean
indian ocean
pacifin ocean
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Use the drop-down menus to select the correct responses to each question about ocean zones.
In which zone do you find marshes and mangrove forests?
In which zone are plankton plentiful, providing plenty of food for the fish that live there?
In which zone would you find very little plant or animal life compared to other zones?
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Answer:
1.intertidal zone
2.neritic zone
3.open-ocean zone
Explanation:
The mass percent of hydrogen in CH₄O is 12.5%.
What is the mass percent?Mass percent is the mass of the element divided by the mass of the compound or solute.
Step 1: Calculate the mass of the compound.
mCH₄O = 1 mC + 4 mH + 1 mO = 1 (12.01 amu) + 4 (1.00 amu) + 1 (16.00 amu) = 32.01 amu
Step 2: Calculate the mass of hydrogen in the compound.
mH in mCH₄O = 4 mH = 4 (1.00 amu) = 4.00 amu
Step 3: Calculate the mass percent of hydrogen in the compound.
%H = (mH in mCH₄O / mCH₄O) × 100%
%H = 4.00 amu / 32.01 amu × 100% = 12.5%
The mass percent of hydrogen in CH₄O is 12.5%.
CO2 = 1.580 grams H2O = 0.592 grams Lookup the molar mass of each element in the compound Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 Calculate the molar mass of CH4O by adding the total masses of each element used. 12.0107 + 4 * 1.00794 + 15.999 = 32.04146 Now calculate how many moles of CH4O you have by dividing by the molar mass. m = 1.15 g / 32.04146 g/mole = 0.035891 mole Now figure out how many moles of carbon and hydrogen you have. Carbon = 0.035891 moles Hydrogen = 0.035891 moles *
Therefore, The mass percent of hydrogen in CH₄O is 12.5%.
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URGENT!!!!!!!!!! List two examples of objects at home that use chemical energy and describe what the chemical energy is being transformed into.
(plz be serious there r people just taking my points I'm bout to cry)
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Answer:
wood, petroleum
Explanation:
Wood: Combustion reaction converts chemical energy into light and heat. Petroleum: Can be burned to release light and heat or changed into another form of chemical energy, such as gasoline. Chemical batteries: Store chemical energy to be changed into electricity.
Answer:
AA battery uses chemical energy
All work must be shown to receive credit PLEASE I NEED HELP
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Answer:
Question 1: 4
Explanation:
20
x0.2
2 x 0 = 0
2 x 2 = 4
4
F=0.2*20m/s
m/a=F
HELP Me Please I will give 20 points
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Answer:
1c
2a
3b
Explanation:
Answer:
1 to C
2 to A
3 to B
Explanation:
I hope this helps
What is one reason the carboxyl groups are often written as -COOH instead of -CO2H?
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Answer:its a different chemical?
Explanation:
HELP IT IS DUE TOMORROW!!fill out the last column of the table . Do they use ionic or covalent bonding
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C = covalent
I = Ionic
(I'm lazy to an extent)
An ionic bond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals.
H2 = C
Cl2 = C
O2 = C
HCl = C
LiF = I
NaCl = I
NaF = I
MgF = I
NH3 = C
CH4 = C
CO2 = C
NaP = I
N2 = C
NF3 = C
CI2 - covalent
O2 - covalent
HCI - covalent
LiF - ionic
NaCI - ionic
NaF - ionic
MgF - ionic
NH3 - covalent
CH4 - covalent
CO2 - covalent
NaP - ionic
N2 - covalent
NF3 - covalent
I'll GIve YOU 25 POINTS
How does heat convection lift the glider ?
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answer please? I need to get all this right in order to pass this class guys help me.. and pls dont try to " answer" the problem just for the points or I'll report it which gets deleted and your point to ! :// If you answer it the right way I'll mark brainlist and cashapp u $5. so when your done answering it write your cashapp username :) ! <3
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2. distribute 7. 7*8,500+7*12,500= 147,000
3. The rental company spent $147,000 because they bought 7 of both cars so you would distribute 7 to the cost of the cars.
i don’t have a cashapp lol
While dinner was cooking, Rachel noticed that there was steam coming from a pot of boiling water. Which of the following statements best explains why there is steam coming from the pot?
A There is a chemical change as the water is reacting with the pot to make steam.
B There is a chemical change as the water is evaporating, producing a gas.
C There is a physical change as a water is condensing, producing a gas.
D There is a physical change as the water is evaporating, producing a gas.
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Answer:
D
Explanation:
Its a physical change
For an experiment, Diego would like to know what will happen when he pours water on a match. His prediction is when the water is poured on the match, it will stop burning. Choose the statement that will support the conclusion of Diego's experiment.
A The water caused another chemical change to the burning wood.
B The water increased the temperature of the wood and stopped the chemical change.
C The water reduced the temperature of the wood and stopped the chemical change.
D When the water was poured on the wood, there were no changes.
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Answer:
It should be option C
Explanation:
Explanation: A does not make sense as water would not cause another chemical reaction to change the burning wood. B, water would not increase the temperature of the wood. D when water is poured on burning wood it extinguishes the fire. Therefore, C is your answer as water will stop the chemical change of burning wood.
PLEASE HELPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Choose all the answers that apply.
The earth's crust:
is one solid land mass
is broken into pieces
has seven main plates
is mostly made of iron and nickel
is mostly made of silicon dioxide
Over time, heat and pressure can change quartz into quartzite. Quartzite is _____.
an igneous rock
a sedmentary rock
a metamorphic rock
Igneous rocks are formed from _____.
cooling magma
eroded rock
metamorphic rock
heat and pressure
Sedimentary rocks form _____.
layers
beneath the earth's crust
from cooling magma
in dry locations
Choose all the answers that apply.
The continents _____.
were once connected
have always been in the same location
are slowly drifting
have stopped moving
are made mostly of basalt
Which of the following statements is true?
Cooling magma is slowing adding land to the continents.
Convection currents in the mantle keep crustal plates moving.
The oceanic plate is made mostly of granite and limestone.
The theory of continental drift was immediately accepted by the scientific community.
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Answer:
1: is one solid land mass, has 7 main plates, is mostly made of silicon dioxide.2: a metamorphic rock.3: cooling magma.4: in dry locations. 5: were connected, are drifting. 6: 4
Explanation:
1:Earth's crust is divided into 7 major and several minor tectonic plates which float on a semi-fluid layer called the asthenosphere. Silicon is the second most common element present in the crust with an abundance of 276,900 ppm. It exists as a compound in the mantle and the crust. In the crust, it exists combined with oxygen to form silicate minerals.2: Quartzite is a hard, non-foliated metamorphic rock which was originally pure quartz sandstone.3:Igneous rock is formed through the cooling and solidification of magma or lava.4:Sedimentary rocks are types of rock that are formed by the accumulation or deposition of small particles and subsequent cementation of mineral or organic particles on the floor of oceans or other bodies of water at the Earth's surface.
I'll GIve YOU 25 POINTS
How does heat convection lift the glider ?
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Answer:
It's easy once you learn it, heat rises, and cool air descends, so the heat rises and lifts up the glider
Explanation:
Hope this helped! Pls Brainliest! It would mean a lot! ;)
please hurry i am timed The volume of the water in the graduated cylinder rose as some of the water was displaced by the golf ball. Find the volume of the ball using the formula
Vb = Vf – Vi
where Vb is the volume of the ball, Vf is the final volume of the water, and Vi is the initial volume of the water. Record the volume of the ball in Table A of your Student Guide.
What is the volume of the golf ball?
cm3
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Answer:
40 cm3
Explanation:
brainliest pls
Answer:
40
Explanation:
im smart, its right