Answers
Answer:
The first question is option 2
and the second question in option 1
Explanation:
Related Questions
What is water (H2O)? Select all that apply * an element a molecule 1 hydrogen and 2 oxygen 2 hydrogen and 1 oxygen
Answers
Answer:
2 hydrogen and 1 oxygen
Explanation:
H2O
Hydrogen has the coefficient so you multiply 1 by 2 and it equals 2
Oxygen does not have any sub or coe so its automatically 1
how to calculate the mass of fraction of all elements in calcium carbonate
(CaCO3)
Answers
Answer:
I have made it in above figure hope it helps
can someone help me (╥︣﹏᷅╥)
Water stored in snow and ice can return directly to the atmosphere through the process of sublimation.
((its timed pLEasE
Please select the best answer from the choices provided
T
F
Answers
If you have 8.5 moles of water (H2O), how many grams of water do you have?
Answers
Answer: i think it is 144.16
Explanation:
Which two compounds are used in batteries?
sulfuric acid and potassium hydroxide
ammonium hydroxide and nitric acid
potassium hydroxide and nitric acid
sulfuric acid and ammonium hydroxide
Answers
Answer:
The chemicals which are electrolytes include: Sodium chloride, chloric acid, nitric acid, potassium nitrate, hydrochloric acid, potassium nitrate, sulfuric acid, sodium hydroxide, magnesium hydroxide and sodium acetate.
Answer:
Sulfuric acid and potassium hydroxide.
Explanation:
These are the two compounds used in car batteries, hope this helps!
what are alkenes and there chemical property
Answers
Answer:
Alkenes contain a double bond that is composed of one sigma and one pi bond between two carbon atoms. The sigma bond has similar properties to those found in alkanes , while the pi bond is more reactive. The carbon atoms in the double bond are sp² hybridized , forming a planar structure.
Explanation:
Believe it!!!
Describe how an adaptation may have allowed giraffes to survive in savanna ecosystems
Answers
In an ionic compound, the negative and positive ions are held together by __________.
Answers
Answer:
the third one
Explanation:
Give an example of a chemical reaction during which a single substance breaks
down. *
Answers
Answer:
2NaCl(l) => 2Na(s) + Cl₂(g)
Explanation:
Electrolysis of melt NaCl to form sodium (Na) metal and chlorine (Cl₂) gas.
This is a class of reaction called 'Decomposition Rxns'. For what it's worth, there are 6 distinct compound types that undergo breakdown by decomposition. The acronym C O A C H E can help remember them.
C - Carbonates => CaCO₃(s) => CaO + CO₂
O - Oxides of Metals => 2Fe₂O₃(s) => 4Fe°(s) + 3O₂(g)
A - Acids (Oxoacids) => H₂CO₃(aq) => CO₂(g) + H₂O(l)
C - Chlorates, Bromates & Iodates => 2KClO₃(s) => 2KCl(s) + 3O₂(g)
H - Hydroxides => Ca(OH)₂(s) => CaO(s) + H₂O(l)
E - Electrolysis => see above electrolysis of NaCl(l)
Answer:
2NaCl(l) => 2Na(s) + Cl₂(g)
Explanation:
Which best describes what is represented by images 1 and 2?
Image 1 shows a polymer, and Image 2 shows a monomer.
Image 1 shows a monomer, and Image 2 shows a polymer.
Image 1 shows a macromolecule, and Image 2 shows a synthetic polymer.
Image 1 shows a synthetic polymer, and Image 2 shows a macromolecule.
Answers
Answer:
b
Explanation:
im doing a test about it
Answer:
b
Explanation:
What three traits are used to classify organisms
Answers
hope this answer helps and have a good day
This biome has extremely cold winters and short, mild summers. It has no trees, only low-growing plants with short root systems because of its frozen soil
called the permafrost. It is covered by snow for most of the year. Animals that live here must have wide paws or hooves to walk through the frozen mushy.
soil. This biome is known as the_________
A. Tropical rainforest
B. Taiga
C. Deciduous Forest
D. Desert
E. Grassland
F. Tundra
Answers
What are the reactants in the reaction? What are their properties? Perform a quick Internet search, if needed.
Answers
The reactants in this reaction are sodium and chlorine. Sodium is a soft, silvery-white metal that is highly reactive. Chlorine is a poisonous greenish-yellow gas that has an odor and combines readily with other elements.
This might be the exact question so you might wanna rephrase it but good luck! :)))
A reactant is a substance that undergoes change during a chemical reaction.
A reaction in a chemical experiment is which takes place when there are mixtures between two or more reactants.
There are about four types of reactions which are:
SynthesisDecompositionSingle replacementDouble replacementPlease note that your question is not complete, therefore, i would give you a general overview to help you.
Some examples of reactants include:
HydrogenSodiumChlorine, etcRead more here:
https://brainly.com/question/12056938
What is a lone pair?
A. Two pairs of electrons that form a double bond
B. Two atoms that have been pushed close to each other
C. A pair of electrons that is not used in bonding
D. A diatomic molecule attracted to no other molecule
Answers
Answer:
I BELIEVE IT is c.
Explanation:
How many carbon atoms are represented by the model below?
Answers
Answer:
3
Explanation:
How do we view large areas of earth’s surface?
Answers
Answer: Are there options? I think the answer is continents, but I don't really understand the question. Is continents an option?
Explanation:
Pls help!!! it’s a timed answer
Answers
Answer:
Explanation
whats your question
A vector is a quantity with magnitude and ____
Answers
Answer:
direction
Explanation:
A P E X
i dont know the answer pls help me
Answers
Answer:
Unicellular
Explanation:
Unicellular organisms are made up of only a single cell
Which ones are elements, compounds I’ll give brainliest.
Answers
jupiter is much more larger than earth , would gravity be weaker or stronger here?
Answers
Answer:
stronger
Explanation:
there is more gravity on Jupiter since it is bigger than earth
Which of the following characteristics is NOT used to classify organisms into groups?
a.
nucleus or no nucleus
c.
color or no color
b.
autotroph or heterotroph
d.
unicellular or multicellular
Answers
Answer:
b
Explanation:
Why the microscope is made an inclination joint?
Answers
Answer:
inclination joint This is the joint between the pillar and the arm of the microscope. It is used to tilt the body tube and stage. It is usually best to keep the stage horizontal.
Explanation:
D. The ¬_____________________ converts food into energy. It is found in both plant cells and animal cells.
Answers
Answer:
I believe it’s the mitochondria
Explanation:
Answer:
Mitochondria
Explanation:
Ik bc i have the vocab for that question
WHAT TWO PLANT CELLS DONT PRODUCE PROTINES?!?!?!?!?
Answers
The cells of plants are eukaryotic. A eukaryotic cell is any cell with a ‘true’ nucleus and organelles. This immediately separates plant cells from the cells of bacteria and archaea.
Animals and fungi also have eukaryotic cells. Plant cells have a unique set of organelles that distinguishes them from the cells of animals and fungi. The presence of organelles called chloroplasts, vacuoles and a cell wall are three key features of the cells of plants.
Plant cells are relatively large and can differ considerably within a plant. There is a large diversity of different types of cells found through stems, leaves and roots.
Different types of plant cells
There is a wide range of cells found in plants. Within the leaves alone there is a variety of cells that perform different functions such as providing protection, photosynthesizing or transporting water. They same level of variety occurs in stems, roots and flowers. Here I describe only a few of the different types of cells from different parts of a plant.
PLZ HELP!!!!!asapnow
Answers
Answer:
Friction of wind against the ocean surface
Please help me this is my science final
Answers
Answer:
1.Winter
2.Autmn
3.Summer
4.Spring
I hope this helps!
2- autumn
3- summer
4- spring
The head of a hammer is often made of steel. This makes the head heavy, which helps create a strong force for driving nails. Steel is also strong. The head of a hammer must be strong to resist what force?
A The force of the air resistance on the moving hammer
B The force of the person using the hammer
C The force of gravity pulling down on the hammer
D The force of the nail pushing in the opposite direction
Answers
Answer:
A
Explanation:
In simple terms: Hammer goes one way, air goes the other way.
Answer:
d
Explanation:
i took the test
I will need help plz thank you
The Earth's surface is _____ water.
50 %
71 %
97 %
Answers
Answer:
71%
Explanation:
5. Why is it necessary to regularly test the pH of pool
water?
Answers
Answer:
To ensure that everyone enjoys using your pool, it is important to keep the swimming pool pH levels in balance at all times. If the pH is too high, it could cause skin irritation and corrode metal parts on the pool. If the pH is too low, it could create a situation where the chlorine in the pool isn't as effective.
Explanation:
Answer:
I don't see multiple choice, so I'll answer this based on what I have learned on my free time.
Explanation:
Usually, when a ton of Urine is in a pool, it can throw off the Ph balance, and can even damage human eyes. Trust me, it's happened to me one time. my eyes burned like fire.