Answer:
Translate from Ukrainian.
У цей приклад я візьму селекції пшениці. Коли ми будемо говорити про селекцію цього злака, то ми можемо отримати меньшу собівартість, та вартість вирощування. Збільшена урожайність, та менша потреба в гербіцидах, пестицидах, та інсектицидах це теж наслідок. Тому селекція це майбутнє!
Analyze the definition of light-year. Why is it in space we use light-year to
measure distance? *
Answer:
Because the distance is too far to count with any other way
Explanation:
can someone help w/ chem plzz
Answer:
my answer I think is tetrahedral
What is the formula for triboron silicide?
Answer:
B₃Si
Explanation:
Let's take break it down. From triboron silicide;
Tri - Three
Triboron - Three boron atoms
Silicide - Silicon (with an -ide suffix)
The formular is given as;
B₃Si
Calculate number of g H3PO3 formed from 53.6 g H2O react with excess PCl3?
PCl3 + H2O → HCl + H3PO3
81.3 g H₃PO₃
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Reading a Periodic TableStoichiometry
Reaction Molar RatiosUsing Dimensional AnalysisExplanation:Step 1: Define
[RxN - Unbalanced] PCl₃ + H₂O → HCl + H₃PO₃
↓
[RxN - Balanced] PCl₃ + 3H₂O → 3HCl + H₃PO₃
[Given] 53.6 g H₂O
[Solve] x g H₃PO₃
Step 2: Identify Conversions
[RxN] 3 mol H₂O → 1 mol H₃PO₃
[PT] Molar Mass of H - 1.01 g/mol
[PT] Molar Mass of O - 16.00 g/mol
[PT] Molar Mass of P - 30.97 g/mol
Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol
Molar Mass of H₃PO₃ - 3(1.01) + 30.97 + 3(16.00) = 82.00 g/mol
Step 3: Stoich
[S - DA] Set up: [tex]\displaystyle 53.6 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O})(\frac{1 \ mol \ H_3PO_3}{3 \ mol \ H_2O})(\frac{82.00 \ g \ H_3PO_3}{1 \ mol \ H_3PO_3})[/tex][S - DA] Multiply/Divide [Cancel out unit]: [tex]\displaystyle 81.3023 \ g \ H_3PO_3[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
81.3023 g H₃PO₃ ≈ 81.3 g H₃PO₃
ahh help, is it true or false?
Solid potassium chlorate breaks into potassium chloride and oxygen gas when heated up to high temperature. This is an example of a/an _______ reaction.
Answer:
es correcto bro claro eres un crak
Answer:
Decomposition Reaction
Explanation:
You can determine the type of reaction by writing out a balanced equation.
Solid Potassium Chlorate: KClO3
Potassium Chloride: KCl
Oxygen Gas: O2
Balanced Equation: 2KClO3 -> 2KCl + 3O2
By definition, a decomposition reaction is when a single substance decomposes into two more simpler substances. AB -> A + B
Because the solid potassium chlorate is breaking into two substances, potassium chloride and oxygen gas, it is a decomposition reaction.
How do you think the artist creates sculptures that vary in color and intensity?
Answer:
Light reflected off objects. Color has three main characteristics: hue (red, green, blue, etc.), value (how light or dark it is), and intensity (how bright or dull it is). Colors can be described as warm (red, yellow) or cool (blue, gray), depending on which end of the color spectrum they fall.
Christ Crowned / Honthorst
Christ Crowned with Thorns, Gerrit van Honthorst, about 1620
Value describes the brightness of color. Artists use color value to create different moods. Dark colors in a composition suggest a lack of light, as in a night or interior scene. Dark colors can often convey a sense of mystery or foreboding.
Light colors often describe a light source or light reflected within the composition. In this painting, the dark colors suggest a night or interior scene. The artist used light colors to describe the light created by the candle flame.
Annunciation / Bouts
The Annunciation, Dieric Bouts, 1450–1455
Intensity describes the purity or strength of a color. Bright colors are undiluted and are often associated with positive energy and heightened emotions. Dull colors have been diluted by mixing with other colors and create a sedate or serious mood. In this image the artist captured both the seriousness and the joy of the scene with the dull gray stone interior and the bright red drapery.
Explanation:
4 points
What is the volume of an object with a density of 5.20 g/cm3 and a mass
of 6.00 x 10^2? g?
Which cell organelle controls all cell activities? Group of answer choices B. Nucleus C. Cytoplasm D. Mitochondria A. Cell Membrane E. Cell Wall
If you have 3 moles of calcium carbonate, how many grams of calcium bicarbonate are formed?
Answer:
hhjcioz xlioyudiyyxyisrupautwtritu regards Roy
Which type of model is described below? A scientist thinks of the inside of a tree as being like a giant straw that can suck up water A. Atomic model B. Physical model C. Mathematical model D. Conceptual model
Answer:
B. Physical model
Explanation:
Out of the four of them this is the one that makes the most sense
[please answer fast!] If the hydroxide ion concentration is 2x10^-3 M, what is the pH of the solution? Show your working.
Answer:
pH = 11.30
Explanation:
pH is defined as -log [H⁺]
To find [H⁺] from [OH⁻] -Concentration of hydroxide ion-, we must use the equilibrium of water:
H₂O(l) ⇄ H⁺(aq) + OH⁻(aq)
Keq = 1x10⁻¹⁴ = [H⁺] [OH⁻]
[H⁺] = 1x10⁻¹⁴ / [OH⁻]
[H⁺] = 1x10⁻¹⁴ / 2x10⁻³M
[H⁺] = 5x10⁻¹²M
pH = -log (5x10⁻¹²M)
pH = 11.30A mining crew extracted two different types of minerals from underground. Then, they transferred the same amount of energy into both minerals. Why did mineral A change while mineral B stayed the same? Explain what happened to the molecules of both minerals
Explanation:
A mining crew extracted two different types of minerals from underground. Then, they transferred the same amount of energy into both minerals. Mineral A changed and mineral B stayed the same phase because mineral B has a stronger molecular attraction than mineral A.
PLSSSSSS HELPPPPPPP FAST WILL GIVE BRAINLIEST I NEED A 3 PARAGRPAH ESSAY ON THIS SCIENCE ARTICLE!! INTRODUCION BODY AND CONCLUSION EACH PARAGRAPH 5 SENTENCES OR MORE!!!!!!
Answer:
jst do the work
Explanation:
its not complicated,ask your teacher for help
How many calories of heat are required to raise the temperature of 225g of water from 10.5°C to 43.7°C
how many atoms are in each compound ?
What is the formula for copper(I) phosphate(v)
Answer:
Cu3PO4
Explanation:
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, Cu[tex]_3[/tex]PO[tex]_4[/tex] is the formula for copper(I) phosphate(v).
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. Cu[tex]_3[/tex]PO[tex]_4[/tex] is the formula for copper(I) phosphate(v). Cu[tex]_3[/tex]PO[tex]_4[/tex] is an ionic compound with cation Cu⁺¹ and anion as PO₄³⁻.
Therefore, Cu[tex]_3[/tex]PO[tex]_4[/tex] is the formula for copper(I) phosphate(v).
To learn more about chemical compound, here:
brainly.com/question/26487468
#SPJ2
The pH of a solution is 8. Some hydrochloric acid is added to the solution. Suggest the pH of the solution after mixing. pH=.......??
Answer:
By adding acid to hydrogencarbonate you create a large concentration of CO2 in solution causing the solution to be highly supersaturated. This keeps the pH down as CO2 is in equilibrium with carbonic acid. During the day long mixing the excess CO2 strips off and as acid leaves the solution the pH increases.
Explanation:
Hope it helps
A solution with a pH of 8 will have its pH reduced with the addition of hydrochloric acid.
What is pH?It is the degree of acidity or alkalinity of solutions.
pH ranges from 0 to 14 with 7 being a neutral pH. Any pH below 7 is acidic while above 7 is basic.
Thus, a pH of 8 is basic and the addition of hydrochloric acid will reduce it towards 7 or even below it.
More on pH can be found here: https://brainly.com/question/491373
#SPJ2
describe nucleus of atom
Answer:
the nucleus is made up of protons and neutrons
You are given 0.39 mol of niobium (Nb). How many grams of niobium do you have?
Answer:
36gNb
Explanation:
0.39 mol Nb*92.91g Nb/1 mol Nb=36 g Nb
I need help with this question ASAP
Answer:
I think its A)
Explanation: im not sure im sorry
O1S. Answer the following questions using Boyle's law:
a. A gas at 1.00 atm occupies 5.00 L. What would be the pres
sure with the volume at 10.0 L if the temperature remains
constant?
we have recent
Answer: 0.5 atm
Explanation:
you would want to use Boyles law which is P1P2=P2V2
or in this case, 1.00atm x 5.00L=P2 x 10.0L
1.00x5.00/10.00= 0.50atm
Amoeba have the following metabolism.
A. Autotrophic
[tex] \huge \purple{\tt{Answer:}} [/tex]
a. Autotrophic
The bouncing of a wave off an object is called a what
Answer:
Reflection-energy waves bouncing off the surface of an object
Explanation:
Which of the following is the correct definition of partial pressure *
A) The total pressure exerted by all gases in the mixture
B) The contribution each gas in a mixture makes to the total pressure
C) The space occupied a gas in the mixture
D) The amount of gas particles present in a mixture
Answer:A
Explanation:
Which statements reflect the process of electrolysis? Check all that apply. Water is formed from ions of hydrogen and oxygen. The electrical reactions in a rechargeable battery can be reversed. The cathode becomes the electrode for reduction. The cathode takes on the metal deposits or layers. Decomposition of ores produces separated elements. Decomposition of ores produces low energy products.
Answer:
Decomposition of ores produces separated element.
Answer: it’s b, d, and e
Explanation: i just did it, hope this helps :)
-
In the reaction: 2X2Y3 + 3Z(QR)4 4X(QR)3 + 3ZY2
What is the charge of the "X" cation needed to form these compounds?
Answer:
That's simple it's the caca of 54 32 x (5) b ÷ 5683jvl done so your answer is 0
Helppp
me plzzz!!!!
Answer:
Explanation:
The sound waves are bocing off the walls.
Which is a liquid that is used to absorb and release thermal energy?
coolant
lubricant
grease
fuel
Answer
grese
Explanation:
Any liquid could absorb and release thermal energy. However, a refrigerant or a coolant absorbs heat and releases it to any area faster than any ordinary liquid such as water. So to complete the sentence: A refrigerant/cooler is a liquid that absorbs and releases thermal energy
Answer:
The correct answer is coolant.
Hope it helps. :)
What is Temperature
Choose 1
Answer:
B. A measure of the average kinetic energy of a substance.
Explanation:
Temperature is a measure of the average kinetic energy of the particles in an object.
Brainlist pls!