Answer: combustion
Explanation:
Combustion reactions can be identified by looking at the reactants and the products.
Usually, the reactants will be a hydrocarbon and oxygen. And the products will be CO2 and H2O
pls pls help i need this soo bad ill give brainliest
Answer:
Mycelial threads
Explanation:
Through the mycelium threads, a fungus or in this case a mushroom absorbs nutrients from its environment. It does this in a two-stage process. First, the hyphae secrete enzymes onto or into the food source, which break down biological polymers into smaller units such as monomers. Mycelium is an important food source for many soil invertebrates.
Answer:
wassssssssssssssssap
Explanation:
SOMEONE HELP ME ASAP!!!
Answer:
A
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
HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP HELP
prove you understand the development of democracy in Athens and how it influenced the government of the United States.
For this assignment, you will write two paragraphs:
In paragraph one, you will explain at least three ways that democracy in Athens influenced the United States government.
In paragraph two, you will explain at least three differences between Athenian and American democracy.
Answer:
The original U.S. voting system had some similarities with that of Athens. In Athens, every citizen could speak his mind and vote at a large assembly that met to create laws. Citizens were elected to special councils to serve as organizers, decision-makers, and judges. The Greek idea of democracy was different from present-day democracy because, in Athens, all adult citizens were required to take an active part in the government. ... This form of government is called direct democracy. The United States has a representative democracy.
Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many g of hydrogen gas are formed when 125.0 g of sodium are added to water?
2Na + 2H2O → 2NaOH + H2
what are waves.
.
/.....................
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
The Olympian swam 200 meters in 20 seconds.
1) velocity
2) acceleration
3) speed
Answer: velocity
Explanation:
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
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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
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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.
Learn more about the law of conservation of matter, here:
brainly.com/question/13383562
#SPJ2
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.
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
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].
Help please for this problem.
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
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:
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
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:
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)
how many grams of Al(no2)3 should be added to 1.3L of water to prepare a 2.0M solution
Answer: 429 grams of [tex]Al(NO_2)_3[/tex] should be added to 1.3 L of water to prepare 2.0 M solution
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
[tex]Molarity=\frac{n}{V_s}[/tex]
where,
n = moles of solute [tex]Al(NO_2)_3[/tex] = [tex]\frac{\text {given mass}}{\text {Molar mass}}=\frac{xg}{165g/mol}[/tex]
[tex]V_s[/tex] = volume of solution in Liters
Now put all the given values in the formula of molarity, we get
[tex]2.0M=\frac{xg}{165g/mol\times 1.3L}[/tex]
[tex]x=429g[/tex]
Therefore, 429 grams of [tex]Al(NO_2)_3[/tex] should be added to 1.3 L of water to prepare 2.0 M solution
which statement about atoms is correct
A atoms contain protons and electrons in the nucleus
B Neutrons are negatively charged
c protons are positively charged
D the nucleon number is the number of neutrons
Answer:Protons are positively charged is the correct statement about an atom
I've also corrected the other statements
Atoms contain protons and neutrons in their nucleus
Neutrons posses no charge and are neutral
The nucleon number is the total number of protons and neutrons in a nucleus
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.
Which best explains what happens to the carbon atoms in carbon dioxide during photosynthesis?
A They are incorporated into molecules of sugar.
B They are transformed into oxygen atoms.They are transformed into oxygen atoms.
C They are broken down into subatomic particles.They are broken down into subatomic particles.
D They are destroyed to release energy.They are destroyed to release energy.
c i think
Explanation:
if it's not look it up
What is an important effect of gravity?
Answer:
pulling objects with mass closer to each other
Explanation:
that is the only role of gravity
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:
Which is most often used to destroy bacteria?
Which statement are part of the safety protocol for this lab experiment?
Answer:
Always wear safety goggles when performing an experiment.
Use caution when constructing the track.
Ensure that the track is clear before releasing cars.
Report all accidents to the teacher.
Explanation:
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.
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!