Answer:
Solar Power, HEP (Hydroelectric Power), Wind Power, etc...
Explanation:
These are some common examples of renewable energy source.
Environmental factors can influence the way genes are ________________.
Answer:
Similarly, drugs, chemicals, temperature, and light are among the external environmental factors that can determine which genes are turned on and off, thereby influencing the way an organism develops and functions.
Explanation:
Chemistry help needed! (picture included)
Answer:
Use a fine, crystalline solute and stir vigorously
Explanation:
It is better if it is fine instead of coarse since this will provide more surface area. If there is more surface area, the crystals will dissolve faster.
You also have to stir the solution vigorously to keep all of the crystals exposed to the solvent.
Answer:
Use a fine, crystalline solute and stir vigorously
Explanation:
Hope this helps
LED can be used in place of torch bulbs because____________
Please answer and thank you
Answer:
they are much cheaper and because thy last for a long time as they are durable and not expensive
because LED use less energy than torch bulb
LED use more than 75% less energy than torch bulb
What is an important effect of gravity?
Answer:
pulling objects with mass closer to each other
Explanation:
that is the only role of gravity
The sun radiates energy towards the ______ surface and some of this radiant energy is in the form of ________.
Answer:
Earth; heat.
Explanation:
Radiation can be defined as the flow, transmission or emission of energy in the form of atomic and subatomic particles and waves through a material medium or space.
Solar radiation is a form of electromagnetic radiation emitted by the sun on the earth's surface as ultraviolet, infrared and visible light.
Hence, the sun radiates energy towards the earth surface and some of this radiant energy is in the form of heat. Radiation is generally considered to be the least important mode of the transportation of heat from one point to another in planet earth.
In this activity, you will use a gas properties simulation to analyze how the variables that describe a gas relate to each other under different conditions. In the center of the simulation is a box with a lid. The box can be filled with gas particles. There’s also a thermometer and a pressure gauge. You can choose the type of particle you want. You can also change the energy of the particles by heating or cooling the box.
The controls on the right panel allow you to hold certain parameters constant or to change the number of particles in the box. Near the bottom are options to pause and reset the simulation.
HELP ME PLEASE ILL GIVE EC AND BRAINLESTPhotosynthesis
Matter and Energy
Claim-Evidence-Reasoning
Name:
Date:
Scenario
Below is the equation of photosynthesis. Photosynthesis is a process that takes place in plants.
Notice that CO, and water are converted into sugar and oxygen.
External Data
600,
6 H,0
Water
light Cº,
+
602
+
Oxygen
ton Dede
Sugar
Prompt:
When you go home Dnight, your mother asks you to explain to her what happens during the
process of photosynthesis. Your mother is a science teacher, so make sure you use scientific terms
to give her a scienífic explanation of how energy is stored as sugar in plants through
photosynthesis.
I
Claim:
Evidence:
Reasoning:
Rebuttal:
Answer:
photosynthesis happens when spring is happening because of the pollen and soil
Explanation:
A student is instructed to design a device that can allow one user to hear a voice of another surer a distance of 5 kilometers which statement describes the most applicable basic design concept
Answer:
A device designed to transmit electromagnetic waves through the air should be developed.
In order to meet the requirement a device is designed to transmit electromagnetic waves through the air should be developed.
What are electromagnetic waves?The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.
The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.
In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.
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Which BEST describes the role of mitochondiſa in maintaining homeostasis for the cell?
A Mitochondria control what crosses into and out of the cell.
B. Mitochondría manufacture and deliver proteins for the cell.
С.
Mitochondria aid in the movement of organelles around the cell.
D.
Mitochondria produce most of the energy that is used by the cell.
Answer: D
Explanation:
The mitochondria is the power house of the cell, remember power as energy
Hurry hurry hurry plz plz
Jonathan’s claim: light is always the same, even when it is emitted by a different light sources(light the sun and a light bulb)
Question 1: do you agree or disagree with his claim?
Question 2: what evidence from your observations within our lesson prove your point?
Answer:
Jonathan’s claim is right.
Explanation:
Jonathan’s claim is right because photons emitted by both sources i.e. sun and the light bulb has the same wavelength which looks practically identical to each other. But some differences in the light spectrum of sun and a light bulb i. e. light bulb has more infrared output than visible and ultraviolet while on the other hand, sun has more visible light than infrared and ultraviolet radiations so we can say that Jonathan's claim is right about the emission of light.
Identify the reaction type:
Si(s) + Cl2(g)
- SiCl4(1)
synthesis
O decomposition
single replacement
double replacement (or neutralization)
O combustion
Answer:serch it up i found it on the second website
Explanation:
Do metals dissolve in water
yes
include sodium and potassium, dissolve instantly and dramatically in plain water — no stronger acid is needed. The metals react violently with water, releasing and igniting hydrogen gas and causing an explosion.
I think they dont
Explanation:
so I guess metals don't dissolve in water
What is the energy of a photon of violet light with a frequency of 7.79*[tex]10^{14}[/tex] [tex]s^{-1}[/tex]? (answer in joules)
Answer:
[tex]E=5.16\times 10^{-19}\ J[/tex]
Explanation:
Given that,
The frequency of violet light, [tex]f=7.79\times 10^{14}\ Hz[/tex]
We need to find the energy of a photon. The formula for the energy of a photon is given by :
[tex]E=hf\\\\E=6.63\times 10^{-34}\times 7.79\times 10^{14}\\\\E=5.16\times 10^{-19}\ J[/tex]
So, the energy of a photon is equal to [tex]5.16\times 10^{-19}\ J[/tex].
Explain what you discovered from the Simulation about why food coloring spreads faster in warmer water.
Answer:
The food colouring mixes through the hot water faster than it mixes with the cold water, this is because in hot water the water molecule have more energy and are moving faster than the molecules of cold water .This makes it easier for the food colouring to get mixed quickly through the hot water.
I need help with these question THAK YOU!!!!
what is Hund's rule?
which molecule is a branched alkane
a) trans-2-pentane
b) nonane
c) 3-methylhexane
d) 2-nonyne
Answer:
The answer is c
Explanation:
Because it is
3-methylhexane is the molecule that is a branched alkane. Therefore, the correct option is option C.
What is alkane?Alkanes, often known as paraffin, are acyclic saturated hydrocarbons in organic science. In other terms, an alkane is made up of carbon and hydrogen atoms that organise themselves in a tree-like arrangement with only single carbon-carbon bonds. Alkanes have the chemical formula CnH2n+2 in general.
Methanogenic bacteria generate methane, and certain long-chain alkanes have pheromone-like properties in some animal species or serve as safeguarding waxes in some plants and fungus. However, the majority of alkanes have little biological action. 3-methylhexane is the molecule that is a branched alkane.
Therefore, the correct option is option C.
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HELP ASAP.
If correct, will give brainliest.
Answer:A
Explanation:
potential energy is stored energy and so the only option that isn’t moving or using energy is a
Which set of coefficients will balance this chemical equation?
__C2H4(g) + __O2(g) → 2CO2(g) + 2H2O(g)
Answer:
Explanation:
USE UR PERDICIRTON TABLE
In which scenario does radiation occur? A B C
Answer:
if it has anything to do with plutonuim, uranium , or burilium its radiation
Explanation:
those elements emit radiation
Answer:
B: drying towels at the beach
Explanation:
I had this on my EDG assignment for radiation and I got it correct.
I hope this is what you were looking for
Can you help me please
Answer:
Explanation:
h
I am very dull and brittle, I can't transfer thermal energy very well, and I tend to be a gas. I must be a ...
a
metal
b
nonmetal
c
metalloid
d
noble gas
Answer and Explanation:
A nonmetal is the answer.
Cause they are dull and brittle, and can be a gas at times at room temperature.
#teamtrees #PAW (Plant And Water)
The Olympian swam 200 meters in 20 seconds.
1) velocity
2) acceleration
3) speed
Answer: velocity
Explanation:
plsss help ive been stuck on this for a week
Answer:
Thomson's atom model.
Explanation:
His model is the plum pudding model of an atom. There are negatively charged subatomic particles or electrons placed within positively charged matter.
Hope this helps!
silver (I) nitrate reacts with nickel (II) chloride to produce silver (I) chloride and nickel (II) nitrate wright the balanced chemical equation for this
Answer: 2 AgNO3(aq) + NiCl2(aq) ⇒ 2 AgCl(s) + Ni(NO3)2 (aq)
Explanation:
what are waves.
.
/.....................
Question 2
Which of the following stages of the water cycle is related to plants undergoing cellular respiration?
a
infiltration
b
transpiration
c
condensation
d
evaporation
Calculate the number of grams in 4.56 x 1026 atoms of sodium phosphate. Be sure to balance the charges of sodium phosphate. Help please
Answer:
124225.91 g of Na₃PO₄
Explanation:
From the question given above, the following data were obtained:
Number of atoms of Na₃PO₄ = 4.56×10²⁶ atoms
Mass of Na₃PO₄ =?
From Avogadro's hypothesis,
6.02×10²³ atoms = 1 mole of Na₃PO₄
Next, we shall determine the mass of 1 mole of Na₃PO₄. This can be obtained as follow:
1 mole of Na₃PO₄ = (23×3) + 31 + (16×4)
= 69 + 31 + 64
= 164 g
Thus,
6.02×10²³ atoms = 164 g of Na₃PO₄
Finally, we shall determine the mass of Na₃PO₄ that contains 4.56×10²⁶ atoms. This can be obtained as follow:
6.02×10²³ atoms = 164 g of Na₃PO₄
Therefore,
4.56×10²⁶ atoms = (4.56×10²⁶ × 164)/6.02×10²³
4.56×10²⁶ atoms = 124225.91 g of Na₃PO₄
Therefore, 124225.91 g of Na₃PO₄ contains 4.56×10²⁶ atoms
In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by _____.
A) hydrogen bonds
B) nonpolar covalent bonds
C) polar covalent bonds
D) ionic bonds
Answer:
C) polar covalent bonds
Explanation:
Polar covalent bonding can be regarded as a chemical bond that involves a pair of electrons which is
unequally shared between two atoms.
The electron are not shared equally as a result of one of the atom spending more time with the electron compare with the other atom. It is one whereby atoms having different electronegativities involves themselves in sharing electrons in a covalent bond
D) 7
20 points
2. How does the concept of conservation of mass apply to chemical
reactions? (hint: the Law of Conservation of Mass) *
a) the reactants and products have exactly the same molecules
b) the change in the amount of matter is equal to the change in energy
o
c) the reactants and products have exactly the same atoms
d) the change in the amount of matter is only a small percentage of the total mass
W
3. How many Oxygen (O) atoms are in the chemical formula below?. *
Answer:
the reactants and products have have exactly the same molecules
The reactants and products have exactly the same atoms, therefore the concept of conservation of mass applies to chemical reactions. Therefore, option (b) is correct.
What is the law of conservation of matter?According to this law, matter can neither be created nor destroyed, but can be converted from one form to another. So the same number and type of atoms in a chemical reaction before and after the chemical change are present.
The initial substances or reactants change into different substances or products in any chemical change. Both the reactants and products are made up of atoms as all matter is made up of atoms.
The matter is conserved as the equal number of atoms of each element in the reactants and products, and the total mass of the reactants must equal the total mass of the products.
The law of conservation of mass can be only followed in a chemical reaction if the reactants and products have exactly the same atoms.
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I NEED HELP!! 1-2 PLEASE
Answer:
1. The day when the day and night are equal
2. equal
Explanation: