Answers
Answer:
red ig
Explanation:
Related Questions
What is a similarity between the respiratory and excretory systems?
A They both break down food.
B They both remove waste from the body.
C They both exchange gases within the body.
D They both transport nutrients throughout the body.
Answers
Answer:
B
Explanation:
The respiratory removes carbon, and the excretory removes other waste products
Why are we able to see planets at night?
Answers
Answer: Because planets do not have nuclear fusion, they do not produce their own light. Instead, they shine with light reflected from a star. When we see planets in the night sky, such as Venus, the so-called "Evening Star," we're seeing reflected sunlight.
Explanation:
The amplitude of a wave is it's _________ or energy
Answers
According to the Laws of Conservation Matter Atoms are not
Answers
they are not created or destroyed
Which layer of the atmosphere is directly above the troposphere?
exosphere
stratosphere
troposphere
mesosphere
Answers
Answer:
stratosphere is directly above troposphere I think
what type of bond is Cl and Br?
Answers
Answer: Polar bond
Explanation:
A by-product of photosynthesis that is not used by the plant, but rather released into the air, is ________________.
Answers
Answer: I think is carbon dioxide!!
Explanation: ( i havent learned about photosynthesis in a long time :) )
hope i helped!! also have a good day!
You are cooking dinner using a metal pan. When you pick up the pan,the handle burns your hand. Which form of thermal energry transfer causes you to burn your hand?
a conduction
b convection
c radiation
Answers
Answer:
Conduction
Explanation:
Answer: The answer would be A conduction
10 Look carefully at the picture. it shows an electron in the excited state on the left, and the
electron returning to its ground state on the right. When the electron return to the ground state it
emits
photon
excited state
ground state
a) blast of cold air
c) proton
b) electrostatic charge
d) photon (light)
Answers
Explanation: The diagram shows that as the electron goes from a charged state to a ground state a red photon was emitted.
Suggest why we have discovered more elements today compared to our ancestors 50,000 years ago
Answers
Answer:
well, we have so much better and more tech and we are a lot smarter than we were before.
Explanation:
Answer:
We have way more advanced technology than our ancestors and we have a better idea of how the earth was millions of years ago.
Explanation:
Structural formula for:
5 - methyl hept - 3 - enal
Answers
Answer:
draw the carbon chain is containing 6 carbon then attach the aldehyde group with edge carbon in chain then put the put double bond at 3 no. carbon
The photograph shows one of the boats in a science club's toy boat race. All the boats were powered by identical
rubber bands. Judges used stopwatches to time how long each rubber band took to unwind. The table shows some
of the data the judges collected.
Which boat experienced the greatest unbalanced force?
Answers
Answer:Boat P
Explanation:
Multiple all of them mass times acceleration and which ever one was the greatest was the answer. Which was Boat P 0.2436
Match the orbital to its diagram.
Answers
Answer:
s --- the round single circle
p --- the two lobes
d --- the four lobes
f --- complex shape
Cells have a ______ ___________, a thin layer that controls what goes in and out of the cell.
Answers
Answer:
cell membrane
Explanation:
What type of energy is used to form a chemical bond?
Solar energy
Free energy
Stored energy
Heat energy
Answers
Heat energy
I thing it's that? ok will hope you have a good day :)
help please you’ll get 18 points to answer this correctly
Answers
0.0625-2mm
By another definition, in terms of particle size as used by geologists, sand particles range in diameter from 0.0625 mm (or 1/16 mm) to 2 mm. An individual particle in this range size is termed a sand grain.
Cobble:
64-256 mm
(a) A rock fragment larger than a pebble and smaller than a boulder, having a diameter in the range of 64-256 mm (2.5-10 in., or -6 to -8 phi units) being somewhat rounded or otherwise modified by abrasion in the course of transport; in Great Britain, the range of 60-200 mm has been used.
Silt:
0.002 to 0.05mm
Silt particles are from 0.002 to 0.05 mm in diameter. Sand ranges from 0.05 to 2.0 mm. Particles larger than 2.0 mm are called gravel or stones. Most soils contain a mixture of sand, silt and clay in different proportions.
Boulders:
>256 mm
In geology, a boulder is a rock fragment with size greater than 256 millimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move.
What animal did Darwin study in the Galapagos Islands?
1. Yellow fin tuna
2. Spiders
3. Hawks
4. Finches
Answers
Answer:
The answer is 4.
Explanation:
Finches.
Answer:
4. Finches
Darwin studied the forms of the beak, and found that they were different based on what they ate.
Using the balanced chemical equation:
4NH3 + 302 --> 2N2 + 6H20
Determine the amount of grams of N2 is produced If 4.03 moles of NH3 react?
Answers
Taking into account the reaction stoichiometry, 56.42 grams of N₂ are formed when 4 moles of NH₃ react.
Reaction stoichiometryIn first place, the balanced reaction is:
4 NH₃ + 3 O₂ → 2 N₂+ 6 H₂O
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
NH₃: 4 molesO₂: 3 molesN₂: 2 molesH₂O: 6 molesThe molar mass of the compounds is:
NH₃: 17 g/moleO₂: 32 g/moleN₂: 28 g/moleH₂O: 18 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
NH₃: 4 moles ×17 g/mole= 68 gramsO₂: 3 moles ×32 g/mole= 96 gramsN₂: 2 moles ×28 g/mole= 56 gramsH₂O: 6 moles ×18 g/mole= 108 gramsMass of N₂ formedThe following rule of three can be applied: if by reaction stoichiometry 4 moles of NH₃ form 56 grams of N₂, 4.03 moles of NH₃ form how much mass of N₂?
[tex]mass of N_{2} =\frac{4.03 moles NH_{3} x56 grams of N_{2} }{4 moles NH_{3}}[/tex]
mass of N₂= 56.42 grams
Then, 56.42 grams of N₂ are formed when 4 moles of NH₃ react.
Learn more about the reaction stoichiometry:
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#SPJ2
Do the reactants or products contain more energy in the
decomposition reaction of sodium azide?
Answers
Answer:
reactants contain more energy in the decomposition reaction of sodium azide?
Explanation:
True or false: when balancing equations you are allowed to change the subscripts of molecules only
Answers
Answer:
kabooom
Explanation:
True or False? When a gas condenses to a liquid it absorbs heat from its
surroundings.
1.True
2.False
Answers
Answer:
True
Explanation:
because it never stops doing it
If a plant cell is placed in a solution and the cell shrivels up, what type of solution was it placed in? How do you know?
Answers
Answer:
The cell is in a Hypotonic solution. When a cell is in a Hypotonic solution the lower osmotic pressure causing water to move across the pressure gradient into the solution causing the cell to shrivel.
Select the correct answer.
Which statement best describes how chemical equations demonstrate conservation of mass?
A.
The number of reactants is the same as the number of products.
B.
The compounds are the same on each side of the reaction.
C.
The number of atoms of each element is the same on each side of the equation.
D.
The state of matter is the same on each side of the equation.
Answers
Answer:
All of the Above
A.The number of reactants is the same as the number of products.
B.The compounds are the same on each side of the reaction.
C.The number of atoms of each element is the same on each side of the equation.
D.The state of matter is the same on each side of the equation.
Explanation:
Answer:
C
Explanation:
I did the test
You're invited to a hot tub party! Being the science geek that you are, you decide to calculate the amount of mL in the 650.0 gallon hot tub!
Answers
Answer:
cool but can we have a little bit bigger
Explanation:
eseasdasdsadasdadasda
r
Answers
Leon is creating a model using the items in the picture below. How could he best improve his model?
O
Earth
Moon
Sun
Make the earth larger than the sun
Make the moon larger than the sun
Make the sun smaller than the earth
Make the moon smaller than the earth
Answers
Make the moon smaller than the Earth.
Hey can someone please help me with this
Answers
Answer:
This is not a redox reaction.
Explanation:
A redox reaction is a reaction that involves reduction and oxidation processes. The best way to identify a redox reaction. Changes in the oxidation number f the species indicates that it is a redox reaction.
Na+
Reactant side = +1, Product Side = +1; No change
Cl-
Reactant side = -1, Product Side = -1; No change
Ag+
Reactant side = +1, Product Side = +1; No change
N
Reactant side = +5, Product Side = +5; No change
O
Reactant side = -2, Product Side = -2; No change
There is no change in any of the oxidation numbers, Hence this is not a redox reaction.
nuclear energy is created through the process of splitting apart atoms and releasing large amounts of heat energy that can be converted to electrical energy.this process is known as?
Answers
How does slash and burn affect the earth's atmosphere?
Question 2 options:
less plants to take in carbon dioxide
more cows produce more carbon dioxide
less water for carbon dioxide to dissolve in
2 of the above
all of the above
Answers
Answer:There are many problems that result from this method of growing crops, including deforestation, a direct consequence of cutting down forests for crop land; loss of habitat and species; an increase in air pollution and the release of carbon into the atmosphere—which contributes to global climate change; and an increase
Explanation:
what is the amount of molecules in 5 moles of nitrogen gas, N2?
Answers
The amount of molecules= 3.01 x 10²⁴
Further explanationGiven
5 moles of N2
Required
The number of molecules
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
For 5 moles :
= 5 x 6.02 x 10²³
= 3.01 x 10²⁴