Answer:
In today's world, the periodic table is very valuable for both students and scientists since it allows them to forecast the sorts of chemical reactions in which a specific element is likely to engage. Rather than memorizing facts and figures for each element, students and scientists can learn a great deal by simply looking at the table. They can learn about an element's reactivity, whether it is likely to conduct electricity, whether it is hard or soft, and many other characteristics by simply looking at the table.
Groups are made up of elements that are in the same column as one another and have attributes that are comparable to one another. If we look at the first column (the alkali metals), for example, we see that they are all metals that have a 1+ charge in reactions, react quickly with water and combine easily with nonmetals.
Periods are made up of elements that are arranged in a row next to one another and have the same maximum unexcited electron energy level as one another.
The periodic table also has the advantage of providing all the information you need to balance chemical processes at a glance, which is a very valuable feature. The atomic number and, in most cases, the atomic weight of each element are included in the table. The group of an element indicates the characteristic charge of that element.
Explanation:
How can a soda can and illumine foil be the same mass?
Answer:
Foil is made from the same material as soda cans (aluminum), but since it's most often contaminated with food waste or combined with plastic (like with yogurt tops), there's no guarantee you can recycle it with your aluminum cans.
Explanation:
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In the formula
1N2 +3H2 → 2NH3 + 1H2
1 diatomic nitrogen (1N2) and 3 diatomic hydrogen (3H2) produce 2 ammonia (2NH3) with 1 diatomic hydrogen (1H2) left over. How can you change the formula so no diatomic hydrogen (H2) is left over?
(1 point)
Remove a H2 molecule from the left side of the equation.
Remove a NH3 molecule from the right side of the equation.
There is nothing that can be done to use the leftover molecules.
Add another N2 molecule to the left side of the equation.
Answer:
Remove a H2 molecule from the left side of the equation.
Explanation:
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What happens to the ionizing rate if the steps of ionizing polyprotic acid increases?
Answer:
An acid that contains more than one ionizable proton is a polyprotic acid. The protons of these acids ionize in steps. The differences in the acid ionization constants for the successive ionizations of the protons in a polyprotic acid usually vary by roughly five orders of magnitude.Answer:
What happens to the ionizing rate if the steps of ionizing polyprotic acid increases? Well they have this stepwise ionization process occurs for all polyprotic acids
Explanation:
A reaction between an acid and a base produced lithium chloride (LiCl). What acid and base combination could produce this salt?
A. sulfuric acid and lithium hydroxide
B. hydrochloric acid and lithium hydroxide
C. sulfuric acid and magnesium hydroxide
D. hydrochloric acid and magnesium hydroxide
Answer:
B. hydrochloric acid and lithium hydroxide
Explanation:
Answer:
thank you!
the answer is B) hydrochloric acid and lithium hydroxide.
Explanation:
have a rest of your day.
What volume of 0.205 MK2S solution is required to completely react with 185 mL of 0.120 MCo(NO3)2?
Answer:
the balanced equation for the above reaction is as follows;
3NiCl₂ + 2K₃PO₄ ---> Ni₃(PO₄)₂ + 6KCl
stoichiometry of NiCl₂ to K₃PO₄ is 3:2
the number of NiCl₂ moles reacted - 0.0102 mol/L x 0.134 L = 0.00137 mol
according to molar ratio
if 3 mol of NiCl₂ reacts with 2 mol of K₃PO₄
then 0.00137 mol of NiCl₂ reacts with - 2/3 x 0.00137 = 0.000911 mol of K₃PO₄
molarity of given K₃PO₄ solution - 0.205 M
there are 0.205 mol in 1000 mL
therefore volume of 0.000911 mol - 0.000911 mol / 0.205 mol/L = 4.44 mL
volume of K₃PO₄ needed is 4.44 mL
for our sample energy scoring sheet, how do we calculate the energy of roasting?
multiply your temp change by 12
hope this helps!
Why is lead(II) nitrate: “Pb(NO3)2” and not “Pb3NO2”?
Just a bit confused because it looks a bit funny compared to how I learned how to write compounds.
Explanation:
this is because the combining capacity, ie valency, of Pb is 2 of which NO3 is 1. So, when they will combine by cross method, the compound become Pb(NO3)2 (lead II nitrate).
hope this helps you.
how to keep apples from browning without lemon juice?
Answer:
eat
Explanation:
eat the dang apples
Why does sugar taste sweet
PLEASE EXPLAIN
Answer:
Because i comes from cane.
Which group has the maximum number of valence electrons attainable?
Answer:
group 18
Explanation:
Elements with the most valence electrons are in group 18
describe the development of the theory of atomic structure
this question is worth 6 marks
Gold's natural state has a definite shape and a definite volume. What is gold's natural state(s)?
O solid
liquid
ОООО
solid or gas
O liquid or gas
Answer:
Solid
Explanation:
What is the formula for ammonium
Answer:
The formula for ammonium is NH₄⁺
What enzyme catalyzes the conversion of carbon dioxide and water to carbonic acid, and where is this enzyme located
Answer:
Carbonic anhydrase and they are located in renal tubules.
Explanation:
Describe the process of pasteurization?
Answer:
Pasteurization is a process in which packaged and non-packaged foods (such as milk and fruit juice) are treated with mild heat, usually to less than 100 °C (212 °F), to eliminate pathogens and extend shelf life.
Would results of solubility of sugar dissolving in water change if a person used a different solute?
Answer:
If a solute is a solid or liquid, increasing the temperature increases its solubility. For example, more sugar can dissolve in hot water than in cold water. If a solute is a gas, increasing the temperature decreases its solubility. For example, less carbon dioxide can dissolve in warm water than in cold water.
Explanation:
which model would represent asexual reproduction? explain you reasoning
Answer:
Answer) The first box represent the budding type of asexual reproduction . In budding due to the cell divison at the particular place in the organism , new individual will produced.
Second picture represent the budding in hydra. Budding is also a asexual reproduction.
Third type of asexual reproduction is found in plants it is vegetative reproduction.
Fourth is Binary fission . This is also a type of asexual reproduction, in which nucleus dicied into two new daughter cell via mitosis.Explanation:
why don't birds get electrocuted when they land on the electric wire?
Answer:
Birds can sit on power lines and not get electric shocks because the electricity is always looking for a way to get to the ground. The birds are not touching the ground or anything in contact with the ground, so the electricity will stay in the power line.
Pls mark as brainliest answer if it helps you
what did immortality-seeking alchemists create by mixing sulfur, charcoal, and potassium nitrate?
Answer:
Gunpowder was discovered somewhat inadvertently by Chinese alchemists, who were trying to develop an elixir of immortality. If you're not aware, there are three primary components to gunpowder: saltpeter (potassium nitrate), sulfur, and charcoal. ... The use of sulfur by the Chinese is also ancient.
Explanation:
3. What type of gas do plants take in?
oxygen
carbon dioxide
Answer:
Archaeology is the study of the human past using material remains. These remains can be any objects that people created, modified, or used.
Explanation:
Find the percent by mass concentration if the solution was prepared by dissolving 25.0 g of sugar into 100 g of water.
Answer:
25%
Explanation:
Percent by mass is looking at the percentage of mass within a a solution. So since there's 100g of water and 25 grams of sugar, you divide 25 by 100 to get the ratio. Then multiply by 100 to get the percentage.
how do atoms achieve noble-gas configurations in single covalent bonds
Answer:
by sharing an electron
Explanation:
each of the two bonded atoms share an electron....making a single covalent bond b/w the two....like in....F - F
1. Hydrogen and nitrogen combine to form ammonia. When nitrogen and hydrogen bond, nitrogen pulls the electrons from hydrogen toward itself. Which statement about the reactants is correct?
A) Hydrogen is oxidized, and nitrogen loses electrons.
B) Hydrogen is oxidized, and nitrogen is reduced.
C) Hydrogen gains electrons, and nitrogen is reduced.
D) Hydrogen is reduced, and nitrogen is oxidized.
2. Which phrase best defines a redox reaction?
A) A reaction in which the number of oxygen atoms is reduced.
B) A reaction in which elements are transferred between different atoms.
C) A reaction is which oxygen combines with different atoms.
D) a reaction in which elements are released from the system.
3.Which statement describes the process of oxidation?
A) Oxidation results in a loss of electrons, so the oxidation number increases.
B) Oxidation results in a gain of electrons, so the oxidation number increases.
C) Oxidation results in a gain of electrons, so the oxidation number decreases.
D) Oxidation results in a loss of electrons, so the oxidation number decreases.
4. Which chemical equation represents a redox reaction?
A) TiCl4(s) + 2H2O(g) → TiO2(s) +4HCl(g)
B) CaO(s) + SiO2(s) → CaSiO3(l)
C) CaCO3(s) → CaO(s) + CO2(g)
D)Fe2O3(s) + 2Al(s) → Al2O3(s) +2Fe(l)
5. Which elements are oxidized and reduced in the reaction below?
Br2 (l) + 2NaI(aq) → I2 (s) + 2NaBr(aq)
A) Bromine (Br) is oxidized, and iodine (I) is reduced.
B) Iodine (I) is oxidized, and bromine (Br) is reduced.
C) Sodium (Na) is oxidized, and bromine (Br) is reduced.
D) Bromine (Br) is oxidized, and sodium (Na) is reduced.
Answer:
did you do it yet?
Explanation:
Answer:
1. Hydrogen is oxidized, and nitrogen is reduced.
Explanation:
6.02 times 10 to the 23 atoms of an element have a mass in grams equivalent to the mass of how many of the atoms in amu?
Answer:
Relation between AMU and Gram
The mass of an atom in amu is numerically the same as the mass of one mole of atoms of the element in grams. One atom of sulfur has a mass of 32.07 amu; one mole of S atoms has a mass of 32.07 g. For compounds, the molecular mass (in amu) is numerically the same as the mass of one mole of the compound in grams.
Explanation:
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Convert 25 gigaseconds into centiseconds
25 gigaseconds is equal to 2,500,000,000,000 centiseconds
an inexperienced student adds a solution of catalytic h2so4 and water to the alkene shown below, expecting to produce 1-cyclobutylethan-1-ol.
The rearrangement produces a more stable tertiary carbocation and the unexpected product.
In the image shown, the substrate is 1-cyclobutylethene. The attack of H2SO4 and water will lead to the conversion of the alkene to an alkanol. Two possible products may be obtained with one being greater than the other.
The unexpected product (Shown in the image attached) is obtained due to rearrangement of the carbocation intermediate. The rearrangement produces a more stable tertiary carbocation and the unexpected product.
Learn more: https://brainly.com/question/6284546
_KOH+_H3PO4=_K3PO4+_H2O
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The balanced chemical equation for given reaction is ~
[tex] \sf{3KOH + H_3PO_4 \rightarrow K_3PO_4 + 3H_2O}[/tex]b) Explain how a burette and a conical flask should be rinsed before a titration experiment?
[tex] \large \text{Answer} \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ [/tex]
If you rinse the burette with the solution to be used, then any tiny amounts of liquid remaining are the same as the solution used to fill the burette, so they will not change the concentration of the solution in any way. This is to prevent contamination.
~⭐Hope it helps you ⭐~
find the solute and solvent of coffee.
Answer:
solute is coffee solvent is the cream or sugar or milk
3. Elements in the s and p blocks of the periodic table are called
a. alloys.
b. main-group elements.
C. metals.
d. transition metals.
Answer:
The answer is B: main-group elements.
Explanation:
Answer:
b
Explanation: