can someone help with with some answers?! :-) please! i need this done in a hour :-( help!!
3. Two substances, both liquids, start at the same temperature. You transfer
the same amount of energy out of both liquids, but substance 1 becomes a
solid before substance 2. Which substalice has a stronger molecular
attraction?
A Substance 1
B Substance 2
Pleas help I will give you Brainlyest
Answer:
Substance 1
Explanation:
Because if it becomes a solid BEFORE the other it means that the structure is more sound than the other substance. and if you add heat to something that becomes a solid it means it will come closer
I Hope this helps <3 and again i don't need the crown
how many elements and atoms are in tylanol
Answer:
Element Symbol # of Atoms
Hydrogen H 9
Carbon C 8
Nitrogen N 1
Oxygen O 2
Explanation:
there are 5 elements
The purpose of warfare in our world
Answer
We are currently working on a dataset of war and large-scale violent events over the long run. If you want to contribute to this research please get in touch.
Explanation:
How much heat in joules is released when 45.0 g of water (C = 4.184 J/g°C) is cooled from 25.0°C to 23.0 °?
Answer:
es él water she id cooled
help fast please it's timed
Answer: B its most likely
I think it would be d if I am wrong im am sorry
If you have 23.2 grams of gold, what is the volume of the sample?
Answer:whats the answer
Explanation:
?
Please I need help in this question :((((
How does sound travel through a solid?
A by changing its speed as it moves through the object
B by remaining very still while traveling through the matter
C. by vibrating the molecules in the matter
D. by moving in a straight line through the object
Please help......A 0.01 g bullet travels with a velocity of 1500 m/s. What is its momentum?
Answer:
hope this helps you
Explanation:
Example 1: A 20 kg object has a velocity of 4.5 m/s in the positive x direction. ... What is the momentum of a 3000 kg truck traveling at 25 m/s? 2. A 1500 kg ferryboat has a momentum of 25000 kg∙m/s. ... *A 0.01 kg bullet has a speed of 700 m/s before it strikes a 0.95 kg wooden block ... We will be going outside so please.
how does eating contribute to the flow of energy in a ecosystem
Answer:
Eating contributes to the flow of an ecosystem because in a food web/chain, there is always a consumer. Starting from the very bottom of the food web/chain, all organisms eat to pass on the energy to the next cosumer. For example, a grasshopper eats some grass. That grass is made into energy. Then, a possum eats that grasshopper, the energy from the grasshopper converting to the energy of the possum. Then a giant snake comes along and eats the possum. The energy keeps flowing up and up the food chain as animals consume(and be consumed).
magnesium has a melting point of 650 degrees celsius, is silvery white, and is reactive with hydrogen in water. It is capable of forming alloys with other metals and has a density of 1.74g/cm3 classify the 5 properties mentioned as either physical or chemical property. Then explain how you know the difference
Answer: Chemical property : It is reactive with hydrogen
Physical property : magnesium has a melting point of 650 degrees celsius, It is silvery white, it has a density of [tex]1.74g/cm^3[/tex] , It is capable of forming alloys with other metals
Explanation:
Chemical property is defined as the property of a substance which is observed during a reaction where the chemical composition identity of the substance gets changed.
Example: It is reactive with hydrogen
Physical property is defined as the property which can be measured and whose value describes the state of physical system. For Example: State, density etc.
Example: 1. magnesium has a melting point of 650 degrees celsius,
2. It is silvery white.
3. It is capable of forming alloys with other metals
4. It has a density of [tex]1.74g/cm^3[/tex]
Which part of an atom is used to form bonds with other atoms?
Answer:
valence electrons
Explanation:
valence electrons
Help would be much appreciated, I'm being timed
I'll mark brainliest !!
Answer:
I think its 16 hope it helps
Explanation:
12. Which noble gas is expected to show the largest deviations from the ideal gas
behavior?
A) helium
B) neon
C) argon
D) krypton
E) xenon
9.25x10^-8 x6.40x10^3 in scientific equation
Answer:
5.92E-4 or 5.92x10^-4
Explanation:
The type of bond between two atoms of an element with atomic number 7 is?
Answer:
covalent bond
Explanation:
please answer please ASAP BRAINLEST TOWhich term names the longest geologic time frame?
feel free get answers online if you need too
epoch
eon
era
period
Answer:
I belive its eon im not sure tho
eon is the answer can i please get the brainliest
need answer ASAP
If 20.0g of water at 56.2°C absorbs 195 J of heat, what is the final temperature?
^in degrees celsius
What mass of water would increase in temperature from 45.0°C to 98.0°C after
absorbing 6830 J of energy?
^IN GRAMS
Answer:
1. 58.5°C = Final temperature
2. Mass of water = 30.8g
Explanation:
The general equation of specific heat of a substance is:
Q = C*m*ΔT
Where Q is the heat involved in Joules,
C is specific heat (Water = 4.184J/g°C),
m is mass of substance,
ΔT is change in temperature (Final temperature - Initial temperature)
For the first problem:
1. 195J = 4.184J/g°C*20.0g*ΔT
ΔT = 2.3°C = Final T - Initial T
ΔT = 2.3°C + 56.2°C =
58.5°C = Final temperatureIn the seconf problem:
2. 6830J = 4.184J/g°C*m*(98.0°C-45.0°C)
6830J / 4.184J/g°C*53°C = m
30.8g = m
Mass of water = 30.8g1 point
Group 1 metal and a Group 17 halogen form an ionic bond, what best
describes the reaction?
+1
0
H +2 +3 +4 -3 -2 -1
BICINOEN
Na Al Si P S CIA
K к GoGe As Se Br K
In |5n|S|Tele
CS
O A halogen(+1) loses one electron to the metal(-1)
O A halogen(+2) loses two electrons to the metal(-1)
O A halogen(-1) gains one electron from the metal(+1)
O A halogen(-2) gains two electrons from the metal(+1)
O This is a required question
I need help plz....
Young / Grassy
.
.
.
.
.
.
.
.
Answer:
a. young.........................
HEEEEEEEEEEEEEEEEEEEEEEEEEEELP ITS DUE TODAY
HELPPPP ASAPPPPPP WILL MARK BRAINLIST
brainstorm 5 ways you can settle an argument more effectively then restoring to a dual
here it wasnt letting my upload my answer so i screenshotted
I’ll mark you brainlist
Answer:
High mass star.
Explanation:
The mass of a star defines its life span. the least massive stars will live the longest and the most massive stars will use their fuel in a few million years and end in a spectacular supernova.
Convert 2.5x10^6mm to km
Answer:
2.5 kilometers
Explanation:
what is the reaction type of 3ZnS+ 2AlP = 1Zn3P2 + 1Al2S3 ?
Answer: double displacement
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
The balanced chemical equation is:
[tex]3ZnS+2AlP\rightarrow Zn_3P_2+Al_2S_3[/tex]
Thus as ions get exchanged , it is double displacement reaction.
How many grams of potassium nitrate are produced when 3.0 grams of
potassium phosphate reacts with excess grams of aluminum nitrate?
Answer 4.2 g. *
PLEASE HELP QUICK!!
Any form of energy can be transformed into ________________ energy.
A. radiant
B. chemical
C. electrical
D. thermal
Answer:
D
Explanation:
My logic: Electricity produces heat, chemical reactions produce heat. And so on.
Answer: A:Radition
Explanation:
7. Which statement correctly describes the density of Earth's mantle compared to the density of Earth's
core and crust?
1) The mantle is less dense than the core but more dense than the crust.
2) The mantle is less dense than both the core and the crust.
3) The mantle is more dense than the core but less dense than the crust.
4) The mantle is more dense than both the core and the crust.
Answer:
1) the mantle is less dense than the core but more dense than the crust.
The mantle is less dense than the core but more dense than the crust.
The Earth's crust is the outermost shell of the planet.
The Earth's mantle is bounded below by the core and above by the crust.
The density of the upper mantle of the Earth is given as 3.4 g/cm³.The density of the lower mantle of the Earth is given as 4.4 g/cm³.The density of Earth's core (inner and outer core) is between 9.9 and 12.2 g/cm³.The density of the Earth's crust is 2.6 g/cm³Thus, we can conclude that the mantle is less dense than the core but more dense than the crust.
Learn more here:https://brainly.com/question/2162876
The diagram below shows the energy conversions of the Krebs cycle, which is part of cellular respiration. The U-shaped
arrows that show changes for NAD, FAD, and ADP molecules represent energy conversions. From each glucose
molecule, two acetyl-CoA molecules are made for the Krebs cycle.
NADH
NAD+
FADH2
FAD
Acetyl-CoA
СС
COA
COA
Citric Acid
4-carbon
compound
CCCC
co&Co
ADP
ATP
CO2
NADH
NAD+
5-carbon
compound
CCCCC
NAD+
NADH
CO.
How many energy conversions occur when both acetyl-CoA molecules go through the Kerbs cycle
A 5
B 6
C 10
D 12
Answer:
b
Explanation:
Why do you think the cold front in figure 1 developed
Answer:
whats figure 1????????????
