Answer:
A because galaxy turns jggf
3)
According to the cell theory, where do cells come from?
Answer:
cells comes from preexisting cells through the process of cell division
does carbon dissolve in water
Answer:
yes
Explanation:
CO2 is soluble because water molecules are attracted to these polar areas. The bond between carbon
HIIII ! any k-pop & K-drama stans!? REMEMBER TO THINK POSITIVE & EAT 3 MEALS A DAY, READ A BOOK (ANY BOOK, SHORT OR LONG) REMEMBER TO SHOWER & DRINK LOTS OF WATER! REMEMBER TO LOVE YOURSELF FIRST ! ❤️ you did a great job today & I hope you keep on continue doing great just like today!!
Answer:
You know, i always say no but when i watch one i get addicted so... yeah. thanks for the positive messages
Explanation:
Thank you so much for spreading a postive message.
I dont know who needs to here this and I don't know you but I know life is hard. I know that no one gets it. I know you may feel depressed or stressed or not know who you are. I know that school is really hard right now. I know that you may have suicidal thoughts. I know because I've been there and still am but im getting better everyday. Progress is Perfect. I am always here to talk about it or anything you need.
how many molecules are there in 18.5 moles of water
Answer: The answer is 18.01528.
Explanation:
Can someone please help I don’t now which one to put
Answer:
2nd or 3rd dyfudhfkfhxhxhxjxjcjcifid
NaBr
what is the name for ionic compounds
Answer:
Its name is Sodium Bromide .
Answer:
=>. the chemical Name of NaBr
=>. sodium bromide
hope it helps
Calculate the molecular weight of 0.2g H3X solution if 50ml of this acid neutralized with 40ml of 0.03N Ca(oH)2 then calculate strength of this solution in ppm
Answer:
1. Molecular weight = 333.3 g/mol
2. Strenght = 2222.2 mg/L
Explanation:
First, we need to find molarity (M) from normality (N) as follows:
[tex] N = nM [/tex]
Where n is the number of OH⁻ = 2
[tex] M = \frac{N}{2} = \frac{0.03}{2} = 0.015 mol/L [/tex]
Now, when the H₃X solution is neutralized with Ca(OH)₂ we have:
[tex]\eta_{H_{3}X} = \eta_{Ca(OH)_{2}} = M_{Ca(OH)_{2}}*V_{Ca(OH)_{2}} = 0.015*0.04 = 6 \cdot 10^{-4} moles[/tex]
Hence, the molecular weight (MW) of H₃X is:
[tex] MW = \frac{m_{H_{3}X}}{\eta_{H_{3}X}} = \frac{0.2 g}{6 \cdot 10^{-4} moles} = 333.3 g/mol [/tex]
Finally, we can calculate the strength (S) of this solution in ppm as follows:
[tex] S = \frac{m}{V} = \frac{200 mg}{0.050 L + 0.040 L} = 2222.2 mg/L [/tex]
I hope it helps you!
Using household measuring tools use these conversions to record is a capacity of the bottle milliliters 1 cup equals 240 mL in 1 tablespoon equals 50 mL 1 teaspoon equals 5 mL what is the capacity of the bottle milliliters?
Answer:
500 ml is in a water bottle
Explanation:
A low ph scale would indicate that the water is A. Neutral B. Basic C. Acidic
A. The potential energy of the products is greater than the potential energy of the reactants
B. The potential energy at point A represents the activation energy
C.The potential energy of the products is lower than the potential energy of the reactants
D. The potential energy at point C represents the activation energy
Answer: im pretty sure it is b but a is also good i going to be honest it a multi chose and i ant good at those
Explanation:
i have extra points so giving points out to people who can answer these questions
HAS TO BE CORRECT
doing addison next
ill ask in comments who wants brainliest <3
1. what is charli d'amelio's favorite food
2.what is charli d'amelio's favorite color
3. how long has charli d'amelio been dancing for??
99 points
heres a rare from charli luvs
Answer:
Dunkin' Donuts
Purple
Charli began dancing at age 3, and was a trained competitive dancer for over 10 years prior to starting TikTok.
Explanation:
Answer:
pink
Explanation:
The sample of oxygen which represents the greatest mass is
A.) mole
B.) gram
C.) molecule
D.) liter
Answer:
A
Explanation:
A sorry if not correct
how many formula units make up 36.4 g of magnesium chloride
Lions and cheetahs prey on wildebeests that graze in the grasslands of the african savanna what likely effect would increased rainfall over several rainy seasons have on the populations of wildebeests lions and cheetahs?
Answer:
All three populations would increase.
Explanation:
what is the pH of a 0.020 M RboH solution?
Which organelle is much bigger in a plant cell than an animal cell?
A:
Chloroplast
B: Vacuole
C: Cell wall
D: Cell membrane
Please help me ASAP
Answer:
Plant and animal cells differ in that plants have a large central vacuole, while animals have smaller vacuoles. Plant cells also have cell walls and plastids, while animal cells do not.
Answer:
B. Vacuole
Explanation:
The vacuole holds large amounts of water or food.
A molecule, Z, contains two atoms of oxygen, six atoms of hydrogen and three atoms of carbon. What is the formula of Z?
Answer:
C3H6O3
Explanation:
Hydroxyacetone
What is the best way to statically charge an object,
Answer:Static electricity can be created by rubbing one object against another object.
Explanation: This is because the rubbing releases negative charges, called electrons, which can build up on one object to produce a static charge
2Na(s) + CaCl2(aq) 2NaCl(aq) + Ca(s) is an
example of which type of reaction?
decomposition
synthesis
double replacement
single replacement
Answer:
single replacement
Explanation:
Would you expect to find older or newer fossils in rock layers closer to the surface? Why?
Answer:
Newer
Explanation:
older fossils and rocks are found in lower strata than younger fossils and rock layers because the top layer fossils have not been there as long as the bottom layer fossils to be found deeper in the ground
Oxygen has an electronegativity of 3.4, phosporus has an electronegativity of 2.2 The bond between them is
a. polar covalent
b. non polar covalent
c. metallic
d. ionic
Answer:
B. polar covalent
Explanation:
ok so im pretty sure im not writing the right thing in sooo if someone could give at least one or 2 answers, please that would be nice :)
what is the relative mass of an electron?
1+
-1
2
0
Answer:
The relative mass of an electron would be -1.
Disproportionation is a process in which a substance
can act only as a reducing agent.
can act only as an oxidizing agent.
is both an oxidizing and a reducing agent.
is neither an oxidizing nor a reducing agent.
Answer:
C. is both an oxidizing and a reducing agent.
Explanation:
kinetic energy is the energy of ____ things
Answer:
moving things
Explanation:
kinetic energy is the energy of moving things
Marcus wants to use two objects to compare the sizes of a proton and an electron. If he uses a basketball for a proton, which object would best represent an electron?
A
a pea
B
a bowling ball
C
a soccer ball
D
a beach ball
Answer:
A
Explanation:
Phenotype is the organism's physical appearance while
is the organism's genetic make-up for any given
trait,
Genotype
Gender
OOOO
Genome
Genetic file
Name three examples of how the atom has changed since Rutherford's discovery of the nucleus .
Answer:
Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment, in which he demonstrated that the atom has a tiny, high- mass nucleus. In his experiment, Rutherford observed that many alpha particles were deflected at small angles while others were reflected back to the alpha source.
Solid calcium carbonate breaks down into carbon dioxide gas, oxygen gas, and solid calcium, write an equation for described reactions chemistry
Answer:
CaCO₃ ------> CaO + CO₂
Note: The breakdown products of solid calcium carbonate is not carbon dioxide gas, oxygen gas, and solid calcium. Rather, it is calcium oxide and carbon dioxide as shown in the reaction equation above.
Explanation:
Calcium carbonate is a mineral which occurs in nature in rocks as calcite and limestone. It is also the main component of eggshells, snail shells, seashells and pearls. It has the molecular formula CaCO₃.
Calcium carbonate or limestone decomposes into calcium oxide and carbon dioxide when heated and the reaction is used to make quicklime and carbon dioxide gas. The equation of the reaction is given below:
CaCO₃ ------> CaO + CO₂
Calcium oxide, one of the products of The decomposition reaction is known as lime and is an important mineral used for many purposes such as reducing the acidity of soils, in the production of limelight, as well as serving as the main ingredient in cement.
The main use of calcium carbonate is in the construction industry as an ingredient of cement. Calcium carbonate is also an important mineral required by sea organisms for making their shells.
Give an example of a decomposer, and explain what would happen if decomposers were absent from a forest ecosystem. Provide evidence to support your claim and explain your reasoning
Answer: Bacteria, some insects, and fungal species are the decomposers of the dead and decaying matter.
Explanation:
The decomposers are the organisms which act and feed on the dead and decaying organic matter so as to obtain energy from it and degrade it to the simple forms that can be utilized by the plants. Bacteria, some insects and fungi that live in the soil and on the decaying matter. The fungi for example decay on the lignin present in the wood so helps in wood decomposition of trees. If the decomposer like fungi are absent the wood mass will not decompose and it will remain as waste and can be used by the plants in the form of nutrients.