What controls cell growth and division? a. Proteins b. Sugars c. Oxygen d. Food

2 months ago

Solution 1

Guest #5491776
2 months ago
A. Proteins is the right answer

ðŸ“š Related Questions

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Help fast plz!!!! 2. Which is larger, a gene or DNA? A gene is larger DNA is larger
Solution 1
DNA is larger than a gene, since gene is kinda like a protein
Solution 2
DNA is longer than a gene
Question
An atom of oxygen has six electrons in its outermost ring and requires two more to become stable. What is the valence number of oxygen? Question 5 options: +6 +2 â€“2 â€“6 +6 +2 â€“2 â€“6
Solution 1

EXPLANATION

Valence refers to the number of electrons that an atom must borrow or lend to complete its outermost shell. An atom of oxygen wants to add two more electrons to complete its outer shell of eight electrons. Since doing so would result in the oxygen atom becoming negatively charged by accepting two more electrons, oxygen is said to have a valence -2 Â

Solution 2

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Question
For each solute identify the better solvent: water or carbon tetrachloride Na2, I2, CCH2O, C6H6
Solution 1
NH3 = water (it is actually a water soluble gas)
C6H14 = CCl4 (C6H14 won't mix with water at all)
Na2S = water (Na2S is a salt. Salts dissolve best in water)
Br2 = CCl4, but it will also dissolve in water.
Question
the presidential inauguration is free to watch with or without paying ror traditional tv service. Why is this important?
Solution 1

so that people would be able to witness the inauguration of a president, since a president is an important part of a country.

Explanation:

Solution 2
The inauguration of a president is important, so you shouldnâ€™t have to pay to watch it
Question
For which of the following reactions is Î”Hâˆ˜rxn equal to Î”Hâˆ˜f of the product(s)? Choose all that apply. a. C(s,graphite)+O2(g)â†’CO2(g) b. Li(s)+12Cl2(g)â†’LiCl(s) c. Li(s)+12Cl2(l)â†’LiCl(s) d. 2Li(s)+Cl2(g)â†’2LiCl(s) e. CO(g)+12O2(g)â†’CO2(g) f. BaCO3(s)â†’BaO(s)+CO2(g)
Solution 1
The correct answers are A, B, and D. The Î”Hrxn is equal to the Î”Hf when the Î”Hf of the reactants is zero, and this can only occur when the reactants are pure elements (not compounds) in their natural phase at ambient temperature.

c) Chlorine's natural phase is gaseous, but since it is a liquid in this reaction, Î”Hf â‰  0.

e) CO is a compound, not a pure element.

f) BaCO3 is a compound, not a pure element.

Solution 2

Further explanation

The change in enthalpy in the formation of 1 mole of the elements is called enthalpy of formation

The enthalpy of formation measured in standard conditions (25 Â° C, 1 atm) is called the standard enthalpy of formation (Î”Hf Â°)

Determination of the enthalpy of formation of a reaction can be through a calorimetric experiment, based on the principle of Hess's Law, enthalpy of formation table, or from bond energy data

Delta H reaction (Î”H) is the amount of heat / heat change between the system and its environment

(Î”H) can be positive (endothermic = requires heat) or negative (exothermic = releasing heat)

The value of Â° H Â° can be calculated from the change in enthalpy of standard formation:

âˆ†H Â° rxn = âˆ‘n âˆ†Hf Â° (product) - âˆ‘n âˆ†Hf Â° (reactants)

Î”Hâˆ˜rxn = Î”Hâˆ˜f of the product(s) if âˆ†Hf Â° (reactants) Â = 0

The elements in standard conditions are not included in the enthalpy calculations because the enthalpy of those elements under the standard conditions is zero.

a.Î”HÂ°rxn = âˆ†Hf Â° COâ‚‚(âˆ†Hf Â°C and âˆ†Hf Â°Oâ‚‚ =0)

b.Î”HÂ°rxn = âˆ†Hf Â° LiCl(âˆ†Hf Â°Li and âˆ†Hf Â°Clâ‚‚=0)

c.Î”HÂ°rxn = âˆ†Hf Â° LiCl- 12âˆ†HfÂ° Clâ‚‚

d. Î”HÂ°rxn = 2âˆ†Hf Â°LiCl (âˆ†Hf Â°Li and âˆ†Hf Â°Clâ‚‚=0)

e. Î”HÂ°rxn = âˆ†Hf Â°COâ‚‚ - âˆ†Hf Â°CO

f. Î”HÂ°rxn = âˆ†Hf Â°COâ‚‚ + âˆ†Hf Â°BaO - âˆ†Hf Â° BaCOâ‚ƒ

Delta H solution

brainly.com/question/10600048

an exothermic reaction

brainly.com/question/1831525

as endothermic or exothermic

brainly.com/question/11419458

an exothermic dissolving process

brainly.com/question/10541336

Keywords: Delta H reaction (Î”H), enthalpy of standard formation

Question
Chromuate found inside which of the following structures of a eukaryotic cell?
Solution 1

Chromuates are found in the chromosomes of the eukaryotic cells!!!!

Explanation:

I learned this in 7th grade!!!!

Mark Me Brainliest plzz

Question
Help quick! Will mark brainlest! Balance the following chemical equation HSiCl3 + H2O = H10Si10O15 + HCl
Solution 1

Answer: 10HSiCl3 + 15H2O â†’ H10Si10O15 + 30HCl

Explanation:

Question
How many oxygen does Nitrogen Dioxide have?
Solution 1

Again,Â nitrogen dioxide doesÂ not follow the octet rule for one of itsÂ atoms, namelyÂ nitrogen. The total number of valence electrons is 5+2(6)=17. There is persistent radical character onÂ nitrogenÂ because itÂ hasÂ an unpaired electron. The twoÂ oxygen atomsÂ in this molecule follow the octet rule.

Question
How do i complete and balance the reaction hc2h3o2+ba(oh)2
Solution 1

= Ba(C2H3O2)2
Question
Mr. Garcia's students are studying animal habitats. A habitat is the place where an animal or plant lives. They marked off five plots on the school campus to count worms. First they predicted that the most worms would live in the damp, shady places on campus, Then they made their counts. The number of worms they found in each plot is recorded in the data table, Maria and Sarah suggested that they cover the sunny plots with some wet hay and then go back and count the worms in a week. Predict the outcome if the girls make this change. A There will be no change in the worm-counts: B) There will be more worms counted in the once sunny plots. Worms from the shady plots will move to the covered plots. D The worms will leave the sunny, covered plots and move to the shady plots
Solution 1

B. There will be more worms counted in the once sunny plots.

Explanation:

I just finished the quiz. Hope this helps :)

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