Answer: 1
Explanation: Step by Step
What does the conversation of mass say about the amount of atoms in the reactants compared to the products?
Answer:
the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction. If we account for all reactants and products in a chemical reaction, the total mass will be the same at any point in time in any closed system.
Answer:
[tex]\boxed {\boxed {\sf Atoms \ in \ reactants \ = atoms \ in \ products}}[/tex]
Explanation:
The Law of Conservation of Mass states that mass cannot be created or destroyed.
In a chemical reaction, this means the mass of the reactants (substances going in and being changed) must equal the mass of the products (new substances from the reaction).
In addition, the amount of atoms must stay the same. The atoms can and will reconfigure to form different compounds, but the number of atoms stays the same.
How do substances move across the cell membrane?
Answer:
The plasma membrane by diffusion
Explanation:
Materials move within the cell's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion
How is acids and bases connected to Physical Science?
Answer:
Under the Brønsted-Lowry definition, both acids and bases are related to the concentration of hydrogen ions present. Acids increase the concentration of hydrogen ions, while bases decrease the concentration of hydrogen ions (by accepting them).
Water’s chemical formula is . One atom of bonded to two atoms of . The hydrogen atoms are to one side of the oxygen atom, resulting in a water molecule having a positive charge on the side where the hydrogens reside and a negative charge on the other side, where the oxygen atom resides. This separation
of charge on of the molecule is called
word bank:H2O,oxygen,oppiste ends,hydrogen,attached,polarity
Which of the materials in the chart originally came from fossil fuels?
Group of answer choices
Acrylic
Cotton
Nylon
Polyester
Viscose
Answer:
Polyester
Acrylic
Nylon
Are all made of fossil fuels.
please help me answser this, its a photo
o element
o subscribe
o coefficient
Answer:
I believe it is a element
.........
Label the picture, please
Answer:
(in the pic above)
Explanation:
P= product
R= reactant
S= subscript
C= coefficient
Y= yields
Answer:
sorry BUT I need points
Explanation:
please help asapppp
if you cant read the question is says : "sort the factors that affect and impact growth of plants. Drag and drop each word into the correct category in the chart below. Some words may go in more than one category"
pls donttt answer if you dont know.
Answer:
well i can't see half of the picture. unless im blind.
Explanation:
At room temperature, aluminum is a solid and water is a liquid. How do the particles of the solid aluminum compare to the particles of the liquid water?
A. The particles in the liquid water and the solid aluminum are the same. They both vibrate and move slowly.
B. The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other.
C. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.
D.The particles in the solid aluminum are close together with no regular arrangement, and the particles in the liquid water are well separated with a regular arrangement.
Answer:
B
Explanation:
The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.
Hope this helps, have a good day : )
Which of the following is a combination of more than on simple machine?
A.Pulley
B.Wedge
C.Scissors
D.Incline
Answer:
D.
Explanation:
Answer:
It is D. Incline
The cells in the human body are like little factories. In order to grow, repair, and live, the cells need supplies. Which body systems help these cells get the energy they need?
A) circulatory system and immune system
B) digestive system and excretory system
C) circulatory system and digestive system
D) respiratory system and excretory system
Answer: A) circulatory system and immune system
Circulatory system and digestive system are the body systems which will help these cells get the energy they need.
What is Digestive system?
These are parts of the body which are involved in the breakdown of food to form energy and other compounds.
Circulatory system on the other hand ensures the nutrients are transported to other parts of the body which is why option C was chosen.
Read more about Digestive system here https://brainly.com/question/1285073
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Anyone (cool, funny, middle school) wanna start a conversation?
Answer:
sure
Explanation:
what's up
Answer:
Im down, Im in 7th
Explanation:
sure hi lol
How do matter and energy move through an ecosystem?
My scientific explanation is:
Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.
Please help me
Dan wrote the following phrase to describe the movement of particles in a state of matter. "Small pea seeds move around each other but do not bounce off." Which state of matter did Dan most likely describe? Group of answer choices Gas Plasma Liquid Solid
Answer:
It is a Liquid
How do unicellular and multicellular organisms differ in structure and function?
PLZ HELPPPPPPPPPPPPP
Look at the table that shows values for Coast Guard search and rescue operations. Write an evaluation of the success of the Coast Guard’s efforts. Be sure to support your answer with evidence from the data table.
Answer: 20%
Explanation: that is the nuber of cases by thenuber of death rate
What are some advantages and disadvantages of sexual reproduction?
Answer:
Allows for diversity, but is slow and inefficient compared to asexual.
PLS HELP ASAP
How does the mass of an object affect its force?
Answer:
If mass increases, force increases.
Explanation:
hope this helps, pls mark brainliest :D
What are the four main components of a galaxy?
A. Gas, dust, rock, and planets
B. Planets, stars, gas, and rock
C. Stars, clouds, orbits, and other objects
D. Stars, gas, dust, and other objects
The four main components of galaxy are Stars, gas, dust, and other objects
Galaxy is a any type system that contain stars,dust, stars remnants, interstellar gas, dark matter and other objects to form universe.
It is derived from Greek word which means milky ,hence it is termed milky way.
Galaxies have different shapes and variations in which the systems are formed.
Galaxies have different in structure and the king of activities that occur in them. Some are site of formations of vigorous sites and so on.
Therefore,
4 QUESTIONS PLEASEEE HELP WILL GIVE BRAINLIEST!!!!
1. How are features like trenches, plains, ridges and valleys formed on the ocean floor?
2. Where does 90% of the marine life live in oceans?
3. a. Where are nutrients abundance? b. Where do these nutrients come from?
4. How do organisms deep I the ocean get their nutrients?
Answer:
1. Converging and Diverging plates
2. In the sunlit zone
3. a.Close to coastlines and upwelling zones b. Nutrients are brought to the surface ocean from depth by the upwelling process
4. Dead organic matter that come from phytoplankton and other plants
Answer:
1. Converging and Diverging plates
2. In the sunlit zone
3. a.Close to coastlines and upwelling zones b. Nutrients are brought to the surface ocean from depth by the upwelling process
4. Dead organic matter that come from phytoplankton and other plants
Explanation:
Of the first 103 elements, how many have 2 letters in their symbols?
A car is going on the 210 freeway going west at 80 mph. The car then slow down to 50 mph. As the car merges to the 605 freeway going south at 50 mph. How many changes in velocity was their?
Answer:
1
Explanation:
when he merged
when he slowed down he didn’t change direction which is a key part of velocity so that doesn’t count
Does anyone know the Lab Report of acids and bases???? HELP PLZ WILL GIVE BRAINLIEST WHOEVER HELPS PLZ
Answer:
Litmus is a natural acid-base indicator extracted from a type of lichen. If you have red and blue litmus paper, you can test different solutions for whether they are acids or bases. Blue litmus paper turns red when a solution is acidic; red litmus paper turns blue in basic solutions
Explanation: Hope this helped
Can someone please explain the cause and effect between the rearrangement of atoms and molecules in a chemical reaction and the different properties that the products have from the reactants.
Answer:
In a chemical reaction, the atoms and molecules that interact with each other are called reactants. ... No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
Explanation:
PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ help me!!!!!
Classify the following substances as:
Pure Substance – P Solution – S Mechanical Mixture – MM
Suspension – SU Colloid - C
Substance
Apple Juice
2005 Penny
Propane
Chicken Noodle Soup
Milk
Salsa
14 Karat Gold Ring
Air
Pepsi (in a glass)
Chocolate Chip Cookie
Answer:
dude me too in which garde are you ☠
What causes the electrons to move and form static electricity?
moist air
dry air
friction
Answer:
friction
Explanation:
The rubbing of certain materials against one another can transfer negative charges, or electrons.
The friction generating between the surface of two objects causes the electrons to move from one body to the other and form static electricity. Hence, option c is correct.
What is static electricity ?Static electricity is the flow of electrons that occurs due to the temporary polarization of two bodies. When a conducting surface rub on other surface, they gets electrons by frictional force.
These free flow of electrons make them negatively charged. When this negatively charged body comes in contact with a non conducting surface they latter gets polarized by the electrons of negatively charged body.
The positive charges of the nonconducting surface gets attracted to the negative body and the electrons flow from the negatively charged body to the partially polarized positive body. This is called static electricity.
Find more on static electricity:
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im literally gonna cry . what is this
PLEASE HELP WILL GIVE BRAINLEST URGENT!!!!!!
When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced. In two or more complete sentences, describe how your knowledge of balancing chemical equations can help you to determine the missing compound.
NaHCO3 + HC2H3O2 ⟶ ________ + H2O + CO2
Answer:
1) Carbon dioxide is the name of the gas.
2) The missing compound is
Step-by-step explanation:
1)When ever an acid reacts with baking soda brisk effervescence of carbon dioxide gas are released.
So, when citric acid reacts with baking soda it gives salt of sodium citrate , water and carbon dioxide gas.
2)
According to law of conservation of mass:
Number of atoms on reactant sides are equal to the number of atoms on product side.
Number of atoms of an element on left hand side is equal to the number of atoms of that same element on the right hand side.
Number of hydrogen atom on reactant side = 5
Number of hydrogen atom on product side = 2+ x
5 = 2+x
x = 3
Number of carbon atom on reactant side = 3
Number of carbon atom on product side = 1 + y
3 = 1 + y
y = 2
Number of oxygen atom on reactant side = 5
Number of oxygen atom on product side = z + 3
5 = z + 3
x = 2
Number of sodium atom on reactant side = 1
Number of oxygen atom on product side = a
1 = a
The missing compound is
Explanation:
Answer:
1) Carbon dioxide is the name of the gas.
2) The missing compound is H3C2O2Na
If you need an explanation, please ask. I hope this helps! :)
What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breaking
BRAINLIEST
Answer:
CCCCCCCCC
Explanation:
Materials move across a cell membrane in a process called _______.
Answer:
Diffusion
Explanation: