Answer- im pretty sure it's 2
What does microbiome do to your cells?
What is the empirical formula for C10h22
C₃ H8
What is the subscript for carbon in this molecule?
Answer:
3
Explanation:
Subscript basically tells you the number of element or ions present in a compound. In this case the subscript of carbon which is 3 denotes that only three carbon atoms is present in the compound.
0.65743 In scientific notation
Which element is in the same period as Potassium (K) and in the same
group as Flourine (F)?
O A. Bromine (Br)
O B. Oxygen (O)
O C. Selenium (Se)
O D. Argon (Ar)
Answer:
A. Bromine (Br)
Explanation:
66 A student wants to design a controlled experiment to solve the following problem: When placed in a freezer, will hot water or cold water reach 0°C faster?
The student plans to place two containers with equal masses of water (one hot and one cold) in the same freezer in the classroom.
a List three conditions the student should keep constant for the hot-water and cold-water setups when planning this experiment. [3]
b For each condition you name, give a scientific reason why the condition needs to be the same for both the hot-water and cold-water setups
Answer:
Explanation:
is guiZ
A gas has a volume of 250.0 liters at 17.0 °C and 3.00 atm of pressure. what volume must the gas be increased for the gas to be at STP conditions?
Answer:
0.706 L (Liters)
Explanation:
P1V1 = P2 V2 3 atm 250.0 mL = 1 atm X
T1 T2 290 K 273 K
706 mL = X
According to the question,
Pressure,
Initial, [tex]P_1 = 3 \ atm[/tex]Final, [tex]P_2 = 1 \ atm[/tex]Temperature,
Initial, [tex]T_1 = 17^{\circ} C[/tex] or, [tex]290 \ K[/tex]Final, [tex]T_2 = 273 \ K[/tex]Volume,
Initial, [tex]V_1 = 250 \ L[/tex]Final, [tex]V_2 = \ ?[/tex]By using the Boyl's and Charl's combination law, we get
→ [tex]\frac{P_1 V_1}{T_1} = \frac{P_2 V_2}{T_2}[/tex]
or,
→ [tex]V_2 = \frac{P_1 V_1 T_2}{T_1 P_2}[/tex]
By putting the values, we get
→ [tex]= \frac{3\times 250\times 273}{290\times 1}[/tex]
→ [tex]= 706 \ L[/tex]
Thus the aforementioned answer is right.
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Substance X has a specific heat capacity that is twice as large as Substance Y. If both samples ended up at the same change in temperature from the same amount of energy added, what is the relationship between the masses of the two samples? Explain.
Answer:
Substance X has a smaller mass
Explanation:
The relationship between the mass of the two samples is that the mass of X is smaller compared to the mass of Y.
The specific heat capacity is given as:
C = [tex]\frac{H}{m x change in temperature}[/tex]
We can see that the higher the specific heat capacity the lesser the mass or simply put, the specific heat capacity of a body is inversely related to its mass.
If the amount of heat is constant i.e the same and the specific heat capacity of X is twice that of Y, then substance X has a smaller mass
How many significant figures are in the number 90027.00?
Answer:
Scientific Notation: 3.45 x 10^5
E Notation: 3.45e5
Explanation:
what is the correct answer !
Answer:
Hi there, The correct answer is, OPT A
Explanation:
Please mark as the brainliest
Is a cell wall found in a plant cell?
Answer:
A plant cell has a cell wall but an animal cell dosnt have one
Explanation:
Brainliest plz
Explanation:
the cell wall surrounds the plasma membrane of the plant and provides tensile strength and protection against mechanical
which organs are part of the respiratory system
DESCRIBE the five types of chemical reactions
(Synthesis, Decomposition, Single displacement, Double displacement, Combustion)
The study of chemicals is called chemistry.
When two elements react together to form a new compound is called a reaction.
When two-element join together to form a new compound is called synthesis.
[tex]C + O_2 --> Co_2[/tex]
The breakdown of a compound into two different elements is called decomposition.[tex]H_20 ----> H_2 + O_2[/tex]
The substitute of one element in the compound is called single displacement.[tex]Fe + H_2So_4---> FeSo_4+ H_2[/tex]
The substitute of two-element in the compound is called double displacement.[tex]BaCl + H_2So_4 + ---> BaSo_4 + HCl[/tex]
The burning of the element in the presence of oxygen is called a combustion reaction.[tex]C + O_2 ---> CO_2[/tex]
Hence, the answer is mentioned above.
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Explain how Coulomb's law can help you understand why some interparticle forces are stronger than others.
Answer:
Coulombs equation involves distance and the distance from one radius to the next allows us to predict certain characteristics such as pull and attraction. For example, you would expect, a higher charge on the ion and a higher dipole moment causes a larger force. This is due to the magnitude which is the distance between these two and effectively that is how Columbus law comes into play.
Coulomb's law states that the force of repulsion or attraction among both two charged bodies is directly proportional to the product of their charges as well as inversely proportional to the square of the length between them.
What is Coulomb's law?An electric force is created when two charged particles collide. The forces will be greater if you have larger charges.
Coulomb's Law can be understood by combining these two ideas and the fact that charges can attract and repel each other. It is a formula for calculating the electrical forces between two objects.
Coulomb's equation involves distance, and the distance between two radiuses allows us to predict certain characteristics such as pull and attraction.
As you might expect, a higher charge on the ion and a higher dipole moment result in a greater force. This is due to the magnitude of the distance between these two, and this is where Columbus law comes into play.
Thus, this way, Coulomb's law can help you understand why some interparticle forces are stronger than others.
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Predictions about the future based on the position of planets is an example of physics biology earth science pseudoscience
Answer:
Pseudoscience
Explanation:
Predicting the future based solely on the position of the planets is an example of pseudoscience.
Pseudoscience is a body of knowledge that is not based on the scientific method but on some unverifiable/unprovable claims.
Predictions about the future can only be valid if it is based on the scientific method, not just about the position of the planet. The scientific method involves observation, hypothesis formulation, testing of the hypothesis through repeatable experiments, and arriving at conclusion.
Any other statement or belief that is not based on these procedures is said to be pseudoscientific.
Answer:
The answer to your question is pseudoscience.
Explanation:
I took the module 1 exam and got it right, yesterday.
Match the subatomic particle to its best explanation:
PHOTON
a fermion
b composite particle
c weak force
d strong force
e forces
f leptons
g up
h +2/3
i gravity
Answer:
a
Explanation:
aaaa
6.900x10^10 ÷ 4.000x10^8
Answer:
1.725e+18
Explanation:
The ability to pound metal into a flat sheet without breaking it is:
A. Luster
B. Malleability
C. Ductile
Answer: B
Explanation: Cuz .
Answer: The answer to your question is A
Explanation: Hey I miss you
A car covers a distance of 22.75 km in 17.04 minutes. Use dimensional analysis to calculate its speed in meters/second. Do not enter units in your answer.
Round to the tenths place or further.
The speed of the car = 22.25 m/s
Further explanationGiven
A distance of 22.75 km
Time = 17.04 minutes
Required
The speed (in m/s)
Solution
Speed is the ratio of distance per time
Can be formulated :
v = d/t
v= speed, m/s
d=distance=m
t=time,s
Input the value :
[tex]\tt v=\dfrac{22.75~km}{17.04~minutes}\times \dfrac{1000~m}{1~km}\times \dfrac{1~minute}{60~second}\\\\v=\boxed{\bold{22.25~m/s}}[/tex]
Which of the following molecules is most likely an enzyme?
water
glucose
protease
monosaccharide
Answer:
protease is an enzyme
Explanation:
It hydrolyse peptide bonds of proteins and also called proteolytic enzymes.
TOMMY (persistently but a little intimidated by the crowd) It's always that way, in every story I ever read about a ship landing from outer space. —The Monsters Are Due on Maple Street, Rod Serling What scientific fact is Tommy’s theory based on? Meteors can do some crazy things. Spaceships often land on Earth. Technology makes space travel possible. Meteors can move people from planet to planet.
Answer:
Technology makes space travel possible.
Explanation:
bc the guy above me is wrong I had to guess and I got it right
Answer:
Technology makes space travel possible.
Explanation:
got it right on edge
List and describe all five types of chemical reactions. thx.
Answer:
combination, decomposition, single-replacement, double-replacement, and combustion.
Explanation:
PLZZZ HELP I NEED ANSWER ASAP THE FIRST ANSWER GETS BRAINLIEST
How is thermal energy transferred from Earth's core?
Through the absorption of water heated by the sun
Through convection that takes place in the atmosphere
Through conduction from magma to water and rocks
Through the sun's radiation that heats the ground
Answer:through the conduction from magma to water and rocks
Explanation:
Write the balanced chemical equations for the following double-replacement reactions.
(Steps: skeleton equation/count number of atoms in reactants and products/balance both sides)
Q24. Aqueous lithium iodide and aqueous silver nitrate react to produce solid sikrer iodide and
1 aqueous lithium nitrate.
A24.
I need the balanced chemical equation for this question
The balanced equation :
LiI(aq) + AgNO₃(aq) --> AgI(s) + LiNO₃(aq)
Further explanationGiven
Word equation
Required
Balanced equation
Solution
There are 3 ways to express a chemical equation:
word equation skeleton equation balanced equationSkeleton equation for reaction above :
LiI(aq) + AgNO₃(aq) ⇒ AgI(s) + LiNO₃(aq)
If we look at this reaction, all the cations and anions have a charge of 1 (+1 or -1) so the balanced reaction between the skeleton equation and the balanced equation is the same
What salt would form when each of the following
strong acid/strong base reactions takes place?
a. HCl(aq) + KOH(aq)
b. RbOH(aq) + HNO3(aq) -
C. HCIO4(aq) + NaOH(aq) →
d. HBr(aq) + CsOH(aq) →
PLEASE HELP I NEED TO TURN IT IN !! IN 10 MINUTES
Which of the following is not a unit of volume?
A
L
B
mL
C
m^3
3
D
cm^2
2
PLEASE ANSWER ASAP !! NEED THIS HANDED IN TN
Answer:
The orest one is possible D
Explanation:
why does condensation not occur on the outside of a warm glass of water?
Answer:
its called vapor. It can hold so much than colder eater based on the weather. For example if its cold it can heat up faster but if its hot it will maybe stay the same
Explain how natural resources are identified and why natural recourses are in evenly distributed.
Answer:
Natural resources are not evenly distributed all over the world. Some places are more endowed that others — for instance, some regions have lots of water (and access to ocean and seas). Others have lots of minerals and forestlands. Others have metallic rocks, wildlife, fossil fuels and so on.
Explanation:
Which of the following is an example of chemical energy being used?
A.Eating a sandwich
B.Reading a book
C.Switching on a fan
D.Turning on the light
I feel like it's C. or D. but I guess it's C.
what is selection in science?
Answer:
Selection, in biology, the preferential survival and reproduction or preferential elimination of individuals with certain genotypes (genetic compositions), by means of natural or artificial controlling factors.
Explanation:
Hope it helps you