Compare and contrast the molecular activity of solids, liquids, and gases.
Answer:
The molecules in a solid are close together and they vibrate in place. The molecules in a liquid move quickly and farther apart from eachother. The particles in a gas move freely at high speeds and slide past eachother.
If you produced 50.0 moles of carbon dioxide from the complete combustion of ethanol in air, how many moles of water vapor are also produced?
hojbiuhok.
Explanation:
.;..........hv
breathe in air container more ____ than breathed out air
a hydrogen
b oxygen
c carbon dioxide
d helium
Answer:
c
Explanation:
carbon dioxide ......
why do reactions go faster at a higher temperature?
Answer:
1. Increasing the temperature increases the average speed of the reactant molecules
2. faster moving molecules in the warm reactants hit each other with more energy
Explanation:
Answer:
Explanation: At higher temperatures the particles can collide more often and with more energy. It makes the reaction take place more quickly.
An example of an abiotic factor that would strongly affect the population of water lilies in a pond?
Answer:
temperature, light or pH
Explanation:
Question 3 of 10
What is thermodynamics?
O A. The study of the transfer of hot and cold energy
B. The study of the movement of energy and heat
C. The study of kinetic energy and potential energy
D. The study of the conservation of matter and energy
Answer:
B
Explanation:
the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy.
Answer:
B
Explanation:
John decided to cycle to his friend’s house at a speed of 28 km/h and the journey took 2 hours. How far did John cycle?
Answer:
THE ANSWER IS 56 :)))
hiii please help i’ll give brainliest
Answer:
the applied force is greater than the force of friction
Explanation:
To find the volume of a ring, the water displacement method was used.
What is the volume of the ring with correct significant figures?
Answer:
4 cm³?
Explanation:
68-64
ugh i don’t know:(
please help!!!
Which statement correctly describes acetyl-CoA?
It connects glycolysis to the citric acid cycle.
It connects the citric acid cycle to the electron transport chain.
It is the product of catabolism of proteins.
It is the product of catabolism of fats.
A. It connects glycolysis to the citric acid cycle.
Explanation: Right on edge
In a paragraph please explain how the reactivity of potassium has increased its
value. Be sure to discuss one chemical or product that is made from potassium,
it's benefit to humans and how it is made.
Answer:
Potassium is a very high reactive metal. Exposed to water, it explodes with a purple flame. Potassium is involved in the health of cells and of blood vessels, so its reactivity has increased values, being used by scientists for blood pressure as well as lethal injection, enough could cause your heart to stop. Take bananas for example, they contain potassium, enough for humans.
Explanation:
How do most cells in your body sense their surroundings?
O they touch things
O they see things
they smell things
they hear things
O all these answers are correct
What is the balanced equation of Na2S+CuSO4=CuS+Na2SO4?
two students performed an investigation
Answer:
what was the investigation ???
An atom forms an ion with a -2 charge. It is:
A:A metal in group 2
B:A metal in group 6
C:A non-metal in group 2
D:A non-metal in group 6
What type of energy does most energy end up as?
O heat
O chemical
light
O electrical
Answer:
Heat
Explanation:
Activity 7 Let's Think First
Directions: Below are possible situations during an earthquake. Encircle the letter of the appropriate action.
1. If you are outside of your house, move away from the buildings.
A. I will do it
B. I will just run anywhere.
2. If you are inside your house, get cover under a table.
A. I will do it
B. I will not do it
3. If you are in a moving car, what will you say to the driver?
A. Just keep driving.
B. Please stop.
4. Drop to the ground and protect your head.
A. I will do it
B. I will not think about it.
5. Prepare a disaster emergency kit beforehand.
A. I will do it
B. I will not do it.
What is the ultimate goal of reproductive strategies?
Answer:
to accelerate progress towards meeting internationally agreed reproductive health targets and, ultimately, to attain the highest achievable standard of reproductive and sexual health for all.
Why is it important to plants and animals that photosynthesis occurs?
5. How would the food web in Figure 7 change if the numbers of red foxes were
greatly reduced by hunters?
Help meee
Answer:
I cant help you because you didn't provide a picture for the graph
Explanation:
Most halogens form compounds by
(1 Point)
gaining an electron to form a negative ion.
losing an electron to form a positive ion.
losing protons.
joining with both calcium and carbon.
I NEED HELP :)
A train travels 76 miles in 1 7/12 hours. What is its average speed in miles per hour?
Answer:
48 mph
Explanation:
total time= 19/12 hr
distence- 76 miles
speed- D/T=76/19/12
which is 48mph
if my answer helps please mark as brainliest.
Answer:
pretty sure its average speed in miles per hour is 48
Explanation:
I just took 76 and divided it by 1 7/12 and got 48
define a shadow plz help
Answer:
A shadow is that thing that follows you everywhere when the sun is out. It's creepy!
Explanation: Hope I helped!
Answer:
A shadow is a dark form that you cannot touch, hear, feel, or taste. It's simply formed when an object blocks a source of light.
which scientist made the most important discovery concerning indemnifying the sun as a star
Answer: Isaac Newton
Isaac Newton, an English scientist, lived from 1642 to 1727. In 1665 he realized that it was gravity that held the solar system together.
Explanation:
BUT YOULL NEVER BE ALONEEEE
ILL BE WITH YOU FROM DUSK UNTIL DAWWWNNNNN
ILL BE WITH YOU FROM DUSK TILL DAWN
ILL HOLD U WHEN THINGS GO WRONG
ILL BE WITH U FROM DUSK TIL DAWN
ILL BE WITH U FROM DUSK TIL DAWNNNNN
What would be the correct answers
Answer:
A chemical bond is formed and energy is absorbed I do believe
Explanation:
What is a chemical symbol? Give an example.
Answer:
zero two is bae
Explanation:
The atomic size of zirconium is smaller than
a. niobium
b. Yttrium
c. Molybdenum
d. None of the above
Answer:
b
Explanation:
because hahamaskdjdjskskskskkssksksks
Which of the following is NOT a clue that could indicate a chemical change?
A. Change in color
B. Mixing of reactants
C. Change in energy
D. Release of a gas
E. Formation of a precipitate
Answer:
i think its C, but im not 100% sure. if not c, then D, but C sounds more right.
Explanation:
everything else sounds like sure fire sighs of a chem change. good luck
Define unbalanced forces(giving Brainly)
Answer:
Unbalanced forces are forces whose net amount is not zero.
This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.
Unbalanced forces make some change in the position of the object on which force is exerted.
Answer:
This can take place when two equal forces are acting in the same direction or opposite direction but with different forces.
Unbalanced forces make some change in the position of the object on which force is exerted.