Answer:
Polymers
Explanation:
Equal masses of two substances absorb the same amount of heat. The temperature of a substance A increases twice as much as substance B. Which substance has a higher specific heat capacity?
A. Substance A
B. Substance B
Letter A because the temperature of a substance A increases "Twice as much".
Am I doing this right?
What is [OH-] of a solution
with a pH of 4.0?
Answer in M
Identify the product of the hydrogenation of the following alkene: CH3 + H2 → A) OH B) CH3 CH3 C) Колата jo sono ue D)
list the factor on which Ka of a weak acid depends
what is phase change?
Explanation:
In chemistry, thermodynamics, and many other related fields, phase transitions (or phase changes) are the physical processes of transition between the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases.
Answer:
In chemistry, thermodynamics, and many other related fields, phase transitions are the physical processes of transition between the basic states of matter: solid, liquid, and gas, as well as plasma in rare cases. A phase of a thermodynamic system and the states of matter have uniform physical properties.
Explanation:
What is the proper name for the common sunflower
Answer: Helianthus L. Sunflower
Explanation:
Answer: Helianthus L.
Explanation:
determine the velocity of a cart traveling at 135cm in 5.5s.
Answer: 0.245 m/s
Explanation:
So velocity = d/t or distance over time in this case m/s or meters per second. But BE CAREFUL you must remember to convert cm to m always so 135 cm= 1.35m and 1.35m/5.5s= 0.245m/s
1. The chemical formula of caffeine is C8H10N4O2. Determine the percent composition of the molecule.
Show work please
Answer:
we find the mass for each element in one mole by multiplying the number of atoms in one molecule with the atomic mass
mC=8Ac=8*12=96g
mH=10AH=10*1=10g
mN=4AN=4*14=56g
mO=2AO=2*16=32g
by adding the masses together we find the molar mass of the molecule
M=mC+nH+mN+mO=96+10+56+32=194g/mole
we apply the rule of threes to find the percentage of each element
194g..96gC..10gH...56gN....32gO
100g....a...........b...........c.............d
a=(100*96)/194=49.48%C
b=(100*10)/194=5.19%H
c=(100*56)/194=28.85%N
d=(100*32)/194=16.48%O
Explanation:
What are resistors? please help
Answer:Resistor Basics
Resistors are electronic components which have a specific, never-changing electrical resistance. The resistor's resistance limits the flow of electrons through a circuit.
They are passive components, meaning they only consume power (and can't generate it). Resistors are usually added to circuits where they complement active components like op-amps, microcontrollers, and other integrated circuits. Commonly resistors are used to limit current, divide voltages, and pull-up I/O lines.
Resistor units
The electrical resistance of a resistor is measured in ohms. The symbol for an ohm is the greek capital-omega: Ω. The (somewhat roundabout) definition of 1Ω is the resistance between two points where 1 volt (1V) of applied potential energy will push 1 ampere (1A) of current.
As SI units go, larger or smaller values of ohms can be matched with a prefix like kilo-, mega-, or giga-, to make large values easier to read. It's very common to see resistors in the kilohm (kΩ) and megaohm (MΩ) range (much less common to see miliohm (mΩ) resistors). For example, a 4,700Ω resistor is equivalent to a 4.7kΩ resistor, and a 5,600,000Ω resistor can be written as 5,600kΩ or (more commonly as) 5.6MΩ.
Schematic symbol
All resistors have two terminals, one connection on each end of the resistor. When modeled on a schematic, a resistor will show up as one of these two symbols:
Resistor schematic symbols
Two common resistor schematic symbols. R1 is an American-style 1kΩ resistor, and R2 is an international-style 47kΩ resistor.
The terminals of the resistor are each of the lines extending from the squiggle (or rectangle). Those are what connect to the rest of the circuit.
The resistor circuit symbols are usually enhanced with both a resistance value and a name. The value, displayed in ohms, is obviously critical for both evaluating and actually constructing the circuit. The name of the resistor is usually an R preceding a number. Each resistor in a circuit should have a unique name/number. For example, here's a few resistors in action on a 555 timer circuit:
Answer: resistor is
Explanation:
A resistor controls the flow of the electrical current within a circuit. Resistors are made from materials like copper or carbon, which make it difficult for the electrical charges to flow through a circuit. The most common type of resistor is a carbon resistor, which is a general purpose resistor, best suited for lower-powered circuits.
three examples of resistors
Answer:
fixed resistors, variable resistors, resistance dependent on a physical quantity
Living organisms contain a variety of specailsed cells name one example of a specialised cell in the body and state its function example : function :
Answer:
See the answer below
Explanation:
The cell represents the basic unit of life and any living organism.
One example of specialized cells in the body are the sex cells.
The sex cells are primarily concerned with reproduction and perpetuation of life. The cells undergo meiosis to produce haploid gametes. Male and female gametes then fuse together during fertilization to give rise to diploid zygotes which eventually give rise to new organisms.
When electrons lost a blank ion is formed
When electrons are gained a blank ion is formed
Answer:
I love it
Explanation:
☁️ Answer ☁️
annyeonghaseyo!
Your answer is:
When electrons are lost, a positively charged ion is formed. When electrons are gained, a negatively charged ion is formed. (I like the car)
Hope it helps.
Have a nice day noona/hyung!~ ￣▽￣❤️
According to the graphs, by what factor will the ocean's acidity change from 2005 to 2100?
A) 0.2
B) 0.5
C) 1.6
D) 2.2
Answer: C) 1.6
Explanation: I got it right
A woman uses 330 Joules of energy to push a box across the floor in 33 seconds. What is her power output in Watts?
Answer:
10 watts
Explanation:
Power = Work / Time
Power = 330 J / 33 s
Power = 10 watts
How many copies of DNA do haploid cells have
Answer:
2 lol
Explanation:
What causes lava to not instantly melt ice sheets when it is poured onto it?
Answer:
Dry ice
Explanation:
Answer:
The lava doesn't melt through ice because the steam ice sits on top of a blanket of steam rather than on top of the ice itself. This means the friction between the lava and the ice is very low.
Explanation:
What element is in group 4 and period 3
4. Proteins make up our bodies ?
Gas in a balloon occupies 3.3 liters. What volume will it occupy if the pressure is changed from 100 kPa to 90.0 kPa, if the temperature is held constant?
Answer:
3.7 L
Explanation:
Initial volume (V₁) = 3.3 L
Initial pressure (P₁) = 100 KPa
Final pressure (P₂) = 90 KPa
Final volume (V₂) =?
The final volume of the gas can be obtained by using the Boyle's law equation as follow:
P₁V₁ = P₂V₂
100 × 3.3 = 90 × V₂
330 = 90 × V₂
Divide both side by 90
V₂ = 330 / 90
V₂ = 3.7 L
Thus, the final volume of the gas is 3.7 L
The number of ions produced when a substance dissolves is always equal to the number of Adams in a chemical formula. What is incorrect about following statement?
what happens to water in the atmosphere after evaporation occurs
Answer:
Cloud form
Explanation:
Evaporation happens when a liquid substance becomes a gas. When water is heated, it evaporates. The molecules move and vibrate so quickly that they escape into the atmosphere as molecules of water vapor. ... Once water evaporates, it also helps form clouds.
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i’m not even sure if this is the right subject or like if this is even a question lol anyways
List at least 3 physical or chemical properties of the element Cobalt
Which of the following describes wind direction?
Wind direction is reported by the direction from which it originates. For example, a north or northerly wind blows from the north to the south. Wind direction is usually reported in cardinal (or compass) direction, or in degrees.
Where is the potential energy to run the plant?
A 3
B
4
С
1
D
2
Answer: C
Explanation:
your well wisher
2.
You take a gas at 3 atm and increase the temperature from 120 K to 240 K. What is the final pressure?
A
6 atm
B
Not enough information
C
3 atm
D
1.5 atm
Answer:
A. 6atm
Explanation:
Using pressure law equation:
P1/T1 = P2/T2
Where;
P1 = initial pressure (atm)
T1 = initial temperature (K)
P2 = final pressure (atm)
T2 = final temperature (K)
According to this question;
P1 = 3 atm
P2 = ?
T1 = 120K
T2 = 240K
Using P1/T1 = P2/T2
3/120 = P2/240
Cross multiply
240 × 3 = P2 × 120
720 = 120P2
P2 = 720/120
P2 = 6atm
how many significant figures are in the measurement 12.4 kg
Which particles make up most of the mass of an atom?
i think Neuterons i am right
Answer:
I do not know srry
Explanation:
People sometimes say that photosynthesis and cellular respiration are “opposites.” Do you agree with this statement? Why or why not?
I do NOT agree with that statement; photosynthesis and cellular respiration are simply two different processes. This does not mean that they are necessarily opposites. However, their chemical reaction-equations are opposite of each other. The processes themselves are similar.
Students report that the sky in their area has mostly cirrus clouds. What are most likely the weather conditions in the area?
rainy weather
dark, overcast (blocking the sunlight)
stormy weather
fair, pleasant weather
How do we know if molecules have kinetic energy?