Answer:
trigonal planar geometry
Explanation:
The molecule, formaldehyde , has three regions of electron density around the molecule. The carbon atom is the central atom in the molecule of formaldehyde.
Recall that each bond around the central carbon atom in formaldehyde- both single and double are counted as a single region of electron density. Molecules having three regions of electron density around the central atom have a trigonal planar geometry.
BF3
What is The calculation and bond type
What is the boiling point of water?
A. 0°C
B. 50°C
C. 70°C
D. 100°C
Answer:
D) 100*C
Explanation:
Answer:
A. 0°C
Explanation:
El agua se evapora a los 0 grados
The bouncing of a wave off an object is called a what
Answer:
Reflection-energy waves bouncing off the surface of an object
Explanation:
If you have 3 moles of calcium carbonate, how many grams of calcium bicarbonate are formed?
Answer:
hhjcioz xlioyudiyyxyisrupautwtritu regards Roy
How does fertilizer affect nitrogen cycle
Cuando se usa demasiado fertilizante para las plantas una parte de ese nitrógeno no vuelve a la atmósfera y a cambio contamina el medio ambiente
Explanation:
the nitrogen cycle is a natural process that adds nitrogen to the soil. however the use of fertilizer has increased the amount of usable nitrogen in the soil
the seven continents used to be one huge supercontinent called Ppaonderosa, Panhandle, Pangaea, Panthalassa
Answer:
Pangaea
Explanation:
Answer:
Pangea
Explanation:
Pangaea or Pangea was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago
How many calories of heat are required to raise the temperature of 225g of water from 10.5°C to 43.7°C
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
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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!
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.
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:
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meantion the two groups of mineralsalts and their two examples (each)
Answer:
sodium example salt and soy sauce
potassium example meat milk fresh fruits
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
how much kg is equal to what g
Answer:
1kg= 1000 grams hope it helps
how can you tell if an substance is an elements
Answer:
A substance that cannot be broken down into chemically simpler components is considered an element
Hope that helps:)
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:
At sea level, a kilogram welghs approximately
2 pounds
10 pounds
5 pounds
1 pound
Answer:
1 kilogram weight at sea level would be the equivalent of 2 pounds.
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?
Single strand RNA is made using the genetic instructions from double strand DNA.
Proteins are made from the instructions in RNA.
True
False
Which cell organelle controls all cell activities? Group of answer choices B. Nucleus C. Cytoplasm D. Mitochondria A. Cell Membrane E. Cell Wall
Plants cells also gain energy through cellular respiration.
True or false?
Answer:
true
Explanation:
A chemical ____ is a force of attraction between atoms or
ions that share or transfer valence electrons.
A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons.
How many atoms of aluminum (Al) are in 6.98 mol of aluminum?
Answer:
[tex]\boxed {\boxed {\sf 4.20 *10^{24} \ atoms \ Al }}[/tex]
Explanation:
To convert from moles to atoms, we must us Avogadro's number: 6.022*10²³. This tells us the number of particles (atoms, molecules, etc.) in 1 mole of a substance. In this case, it is atoms of aluminum.
We can use the number as a fraction.
[tex]\frac{6.022*10^{23} atoms \ Al}{1 \ mol \ Al}[/tex]
Multiply by the given number of moles: 6.98
[tex]6.98 \ mol \ Al *\frac{6.022*10^{23} atoms \ Al}{1 \ mol \ Al}[/tex]
The moles of aluminum will cancel.
[tex]6.98 *\frac{6.022*10^{23} atoms \ Al}{1 }[/tex]
The denominator of 1 can be ignored.
[tex]6.98 * {6.022*10^{23} atoms \ Al}[/tex]
Multiply.
[tex]4.203356*10^{24} \ atoms \ Al[/tex]
The original measurement of moles has 3 significant figures, so our answer must have the same.
For the number we calculated, that is the hundredth place. The 3 in the thousandth place tells us to leave the 0.
[tex]4.20 *10^{24} \ atoms \ Al[/tex]
There are about 4.20*10²⁴ atoms of aluminum in 6.98 moles.
What is the volume, in liters, of a 0.2 M solution containing 8.5 grams of AgNO3?
Answer:
0.25L or 250Ml
Explanation:
I am not that good but as far as my calculations this must be the answer
No attempt was made to test sodium with hydrochloric
acid. Why not?
Answer:
the reaction is violent and quick
Explanation:
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
-
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
can someone help w/ chem plzz
Answer:
my answer I think is tetrahedral
Helppp
me plzzz!!!!
Answer:
Explanation:
The sound waves are bocing off the walls.
I need help with this question ASAP
Answer:
I think its A)
Explanation: im not sure im sorry