Answer:
Water vapour is an efficient greenhouse emission, because it will absorb radio wave radiation and radiates it back to the surface, so contributive to warming. when put next to alternative greenhouse gases, water vapour stays within the atmosphere for a way shorter amount of your time, However, When you exhale and it's cold outside, though, the vapour in your breath loses its energy quickly. instead of continued to maneuver freely, the molecules begin to pack themselves closely along. As they are doing this, they cut down and start to alter into either liquid or solid varieties of water.
What happens to the chemical properties of substances during a chemical reaction?
Answer:
In a chemical reaction only the atoms show in the reaction and they can end up in a product. Also, in a chemical reaction the reenact with one another to break down the product. They can also bond and rearrange the atoms to make a new product.
Explanation:
Hope this helps :)
When Kristen was five, she became sick with chickenpox and then recovered. What claim explains why Kristen is unlikely to get chickenpox a second time? *
A. Kristen has developed a vaccine against chickenpox.
B. Kristen has not developed antibodies to chickenpox.
C. Kristen’s body no longer contains cells that can be damaged by chickenpox.
D. Kristen’s body has memory cells that will produce antibodies to fight chickenpox.
be quick plz!!
Answer:
the answer is A!
Mark as brainless
Which of the following is NOT a gland?
A. Pancreas
B. Neuron
C. Thyroid
D. Pituitary
help please!
Please help, 25 Points!
Answer: 48
Explanation:
Number of protons + Number of neutrons = mass number
Number of neutrons = Mass number - Number of Protons
Number of neutrons = 84-36
Number of neutrons = 48
Atomic number is equal to how much electrons there is
To find the number of neutrons, one have to subtract the atomic number from the atomic mass.
84-36=48
can anybody define hypothesis in their own words? (its for school)
Answer:
An educated guess based on what you already know.
Explanation:
need help asap
will give brainly
Algal blooms which pollute streams, rivers, and lakes are caused by the presence of O A. lead. O B. oxygen. C. mercury. D. phosphates. O E. E. DDT.
Answer: oxygen
Explanation:
Where do flowers come from? They are made through the process of sexual reproduction. Flowers may look simple, but there are actually several parts that allow it to reproduce. Let's take a closer look. Glad my mom didnt make me read this out loud- THIS WAS IN MY FREAKING SCHOOL WORK IM NOT LYING LIKE LOL
Answer:
They're sexual reproduction
Explanation:
A flower throws seed at another flower
Plsss help!! What would happen to a cup of hot coffee left untouched for 10 minutes. Include in your response temperature, molecules, and kinetic energy.
Answer:
The overall temperature of the coffee would decrease because the coffee would transfer its thermal energy into the surrounding air. The molecules would slow down in movement because when the coffee was hot, they were moving around faster. Subsequently, the kinetic energy of those molecules would also decrease
Explanation:
Answer:
the temperature would become cooler
Explanation:
which metal will cool faster in water
steel
copper
brass
aluminum
Answer:
Copper!
Explanation:
Hope This Helps
Answer:
Aluminum
Explanation:
Does seeing a gas produced always mean a chemical reaction is occurring? Explain.
Answer:
Seeing a gas produced not always means a chemical reaction is occurring.
Explanation:
The following clues for an occurrence of a chemical reaction:
Color: The color of the solution changes when mixed with another solution or on the addition of a solid to a solution.Temperature: Rise or fall in temperature of the substance formedPrecipitation: Formation of solid substance that is precipitateGas evolution: Bubbles or gas formation. Evolution of gas or fumes from the solution.Odor: The smell of the reacting mixture initially differs from the smell of the productsYes, gas formation is one of the clues of the occurrence of a chemical reaction but it is not completely true.
This is because the evolution of gas also occurs when a substance undergoes a physical change.Water vapors on boiling water, sublimation of dry ice giving carbon dioxide gas.So, from this, we can conclude that seeing a gas produced not always means a chemical reaction is occurring.
Learn more about observations of chemical reactions here:
brainly.com/question/12297947?referrer=searchResults
brainly.com/question/14219426?referrer=searchResults
Which change of state is shown in the model?
A. Condensation
B. Boiling
C. Sublimination
D. Freezing
Answer:
D
Explanation:
What causes physical weathering?
Answer:
its when something is weathered
Explanation:
Answer:
Physical weathering is caused by the effects of changing temperature on rocks
Explanation:
Please hurry I need to get this done, Please help me I will give you the brain thing and extra points.
image below 9
Early man discovered it and used it with wood. When I use it on this thing it smells so very good.
Answer:
Fire was found by early man and used with wood, and it is used on a candle to smell good.
The answer to the riddle you provided is "fire." Early humans discovered fire and used it in conjunction with wood for various purposes, such as cooking, and providing warmth, and protection. When you use fire on something, it often produces a pleasant aroma or smell.
The picture shows the Prairie blazing star, a flowering plant found in a prairie environment.
How does the body plan of the Prairie blazing star help it carry out its life processes?
A.
Being in groups helps it to attract pollinators, and the roots touching each other allow the plants to share nutrients.
B.
The narrow leaves help it to attract herbivores to carry seeds, and the roots fan out to find water of a large surface area.
C.
The height of the plant allows it to receive direct sunlight, and the flowers prevent herbivores from trying to eat it.
D.
The deep roots allow it to find water in a usually dry environment, and the narrow leaves help prevent water loss through evaporation.
Answer:
A
Explanation: hope this helps
How many hydrogen atoms are in 2NH(4)
4 is a subscript
Answer:
4
Explanation:
Answer:
8 atoms
Explanation:
There are two sets of NH4 ( 2NH4) and the subscript means there are 4 hydrogen atoms in every set. if you distribute the 2, 2*4=8
2(NH4) = N2H8
A SERIES CIRCUIT is a closed circuit with one path.
a. True
b. False
This equation shows the neutralization of sodium hydroxide and hydrochloric acid:
NaOH + HCl → H2O + NaCl
The reactant side of the chemical equation has (1/2/3/4) atom(s) each of sodium, oxygen, and chlorine. The reactant side also has (1/2/3/4) hydrogen atom(s). Count the numbers and kinds of atoms on the product side of the equation. The numbers and kinds of atoms on both sides of the chemical equation are (the same/not the same). So, this chemical equation is (balanced/not balanced) .
Answer:
The reactant side of the chemical equation has
1
atom(s) each of sodium, oxygen, and chlorine. The reactant side also has
2
hydrogen atom(s). Count the numbers and kinds of atoms on the product side of the equation. The numbers and kinds of atoms on both sides of the chemical equation are
the same
. So, this chemical equation is
balanced
.
Explanation:
16. What is the speed of the object represented by the graph?
A.0.5 m/s
B.2 m/s
C.5 m/s
D.10 m/s
Answer: 5 m/s
Explanation: At 1 second, the graph shows the object has travelled 5m. At 5 seconds, the object has travelled 25m.
Valence electrons will either ______________ or ______________ to form molecules.
Answer:
ionic or covalent
Explanation:
The outermost electrons -- the valence electrons -- are able to interact with other atoms, and, depending on how those electrons interact with other the atoms, either an ionic or covalent bond is formed, and the atoms fuse together to form a molecule.
Valence electrons will either ______________ or ______________ to form molecules.
Answer:
ionic or covalent
Explanation:
The outermost electrons -- the valence electrons -- are able to interact with other atoms, and, depending on how those electrons interact with other the atoms, either an ionic or covalent bond is formed, and the atoms fuse together to form a molecule.
If your reactants are equal to our products in our chemical equation, then the arrow should always be pointing towards the?
What are two ways to practice conservation? How would your proposals help?
Answer:
Check your toilet for leaks. ...
Stop using your toilet as an ashtray or wastebasket. ...
Put a plastic bottle in your toilet tank. ...
Take shorter showers. ...
Install water-saving shower heads or flow restrictors. ...
Take baths. ...
Turn off the water while brushing your teeth. ...
Turn off the water while shaving.
The distance from the crest of one wave to the crest of the next wave.
A. microwaves
B. longitudinal
C. wavelength
D. electromagnetic
E. gamma rays
F. mechanical
Answer:
C
Explanation:
Answer:
c
Explanation:
Please help me I will give you the brain thing and extra points. 1/9
image below
Answer:
It is C
Explanation:
20 is the major force on the box and 10 on the left is the counter force so it is cthe resulent force
Conner boils water on the electric stove. The electrical energy is transferred to the thermal energy of the stove. This demonstrates which of the following?
a
Energy is created and then destroyed
b
Every system produces more energy than goes into it
c
Energy can change from one form to another
d
Electrical energy can only produce heat energy
Answer:
The answer is C
Explanation:
Also I love your Bakugou pfp ;D
Answer:
c
Explanation:
because I think it makes the most sense
Please hurry I need to get this done, Please help me I will give you the brain thing and extra points.
image below 8
Answer:
A
Explanation:
The box will not move since its the same amount of force on each side.
HEllo i need help with reading how do i read
what processes break down and build up Earth's surfaces?
