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Is this an alpha or beta decay?
How many grams does 2.1
moles of SnF, weigh?
Answer:
289.8g
Explanation:
Using the formula as follows:
mole = mass/molar mass
Molar mass of SnF = 119 + 19
= 138g/mol
Using mole = mass/molar mass
2.1 = mass/138
mass = 2.1 × 138
mass = 289.8g
What is the approximate vapor pressure when the gas condenses at 70°C?
150
5
760
380
Answer:
380
Explanation:
I couldn't find the answer anywhere so this is the correct answer. I got it graded.
conclusion on friendship
Explanation:
Conclusion. A good friendship is very difficult to come across. That is why we should appreciate this divine relationship that is based on understanding and feelings. ... A true friend is one of the most precious possessions that one can have in his life.Hope it's helpful for Yuh bro!!
Answer:
Friendship is, in many respects, a "comfortable" love relationship. Friendships involve as little or as much intimacy as the partners are inclined to express at any given time. Friends are not normally obligated to exchange benefits, but do so in ways that are often so natural as to be unwitting. The ties that bind them are by unfettered mutual consent. In spite of its being so comfortable, in fact because of it, friendship contributes in unique ways .
How many representative particles are there in 10.43g of sugar (C12H22011)?
Answer:
10.43 / 342 × 6.02 × 10 ^23 = 18.34 × 10^ 21
list the universities of nepal and explain about one of them.
Answer:
Tribhuvan University is a university in Tribhuvan, Nepal. Tribhuvan University (TU) is a pioneering higher education institution in Nepal, having been founded in 1959. ......
Pokhara University... Kathmandu University...
Purbanchal University is located in Purbanchal, India.
Lumbini Bauddha University (LBU) is a university in Lumbini, Nepal...
Nepal Sanskrit University is a university dedicated to the study of Sanskrit in Nepal.
Midwestern University is a public university in the Midwest...
Nepal Open University is a public university in Nepal.
Explanation:
Find the moles of 127.5g of NaCl.
Answer:
n = 2.18 moles
Explanation:
Given that,
Mass = 127.5g
Molar mass of NaCl = 58.44 g/mol
We need to find the number of moles. We know that,
No. of moles = Given mass/molar mass
Put all the values,
[tex]n=\dfrac{127.5\ g}{58.44\ g/mol}\\\\n=2.18\ moles[/tex]
Hence, there are 2.18 moles of 127.5g of NaCl.
En un tanque se halla CO₂ a 285K ocupando un volumen de 8 L. En esas condiciones determinamos el volumen que ocupa a 393K, considerando que la presión se mantiene constante
Answer:
11.0 L
Explanation:
Podemos resolver este problema usando la ley de Charles, que afirma que a presión constante:
T₁V₂=T₂V₁Donde el subíndice 1 indica las condiciones iniciales y el 2 las finales. En este caso:
T₁ = 285 KV₂ = ?T₂ = 393 KV₁ = 8 LIntroducimos los datos:
285 K * V₂ = 393 K * 8 LY calculamos V₂:
V₂ = 11.0 Lwhat does the prefix non-represent?
O 9 carbon atoms, only
O 9 carbon atoms and 20 hydrogen atoms
O 9 carbon atoms and 18 hydrogen atoms
O 9 carbon atoms and 16 hydrogen atoms
Answer:
O 9 carbon atoms, only
Explanation:
Prefix: non- simply means 9.
Suffix: -ene means double bond, -yne means triple bond, and -ane means single bonded carbons.
You are given a clear-water solution containing potassium nitrate. How could you determine whether the solution is unsaturated, saturated, or supersaturated?
Answer:
If it is unsaturated, we can dissolve some more amounts of potassium nitrate into it Explanation:
Read the given equation:
Ca(OH)2 + 2HCl - CaCl2 + 2H20
Which of the following is true about the equation? (5 points)
HCI is the base and Ca(OH)2 is the salt.
HCI is the acid and Ca(OH)2 is the salt.
Ca(OH)2 is the acid and Cacl2 is the salt.
Ca(OH)2 is the base and CaCl2 is the salt.
Answer:
D.
HCl is acid
Ca(OH)2 is base
CaCl2 is salt
In the given chemical equation Ca(OH)2 is the base and CaCl2 is the salt, thus option D is correct.
What is chemical equation?A chemical equation is a symbolic representation of a chemical reaction that shows the products, reactants, and direction of the reaction.
An acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance.
A base is a chemical species that donates electrons, accepts protons, or releases hydroxide (OH-) ions in aqueous solution.
A salt, in chemistry, is defined as the product formed from the neutralisation reaction of acids and bases.
Therefore, in this chemical equation option D is true about the equation i.e
Ca(OH)2 is the base and CaCl2 is the salt.
Learn more about chemical equation ,here:
https://brainly.com/question/12047033
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Balance the following equation:
-_MgCO3 → _MgO + __CO2
Answer:
Decomposition
Explanation:
Magnesite = Magnesium Oxide + Carbon Dioxide
____is the degree of hotness or coldness of a body or place
Calculate the amount, in mol, of sodium atoms represented by 1.0x10(to the power of 20) sodium atoms
Explanation:
moles= number of particle or atom / 6.02×10^23
so
[tex] \frac{1.1 \times {10}^{20 } }{6.02 \times {10}^{23} } [/tex]
gives u 1.83×10^-4 moles
hope it make sense :)
Answer:
1.7 * 10^-4 moles
Explanation:
According to Avogadro, one mole of a substance contains 6.02 * 10^23 number of atoms, molecules, ions etc.
Hence;
1 mole of Na contains 6.02 * 10^23 atoms
x moles of Na contains 1.0x10^20 atoms
x = 1.0x10^20 * 1/6.02 * 10^23
x = 1.7 * 10^-4 moles
Which effects would many organisms likely experience if global warming occurs? Check all that apply.
disrupted food webs
increased competition
increased number of glaciers
disrupted life-cycle events
forced relocation
and any MHA fan to
Answer:
Disrupted food webs
increased competition
disrupted life-cycle events
forced relocation
Explanation:
Global warming refers to a gradual rise in the temperature of the earth due to the increase in the concentration of greenhouse gases in the atmosphere which trap infrared radiation close to the earth.
This gradual increase in the temperature of the earth often have devastating effects on the lives of various organisms on earth. These effects include;
Disrupted food webs
increased competition
disrupted life-cycle events
forced relocation
Due to changes that occur in the ecosystem as a result of global warming, many species may be compelled to relocate from place to place. This in turn disrupts food webs and may lead to disruption of life cycle events of the concerned organisms. Decrease in the number of certain populations due to global warming may lead to increased competition among species for food.
Help me with chemistry! I got this answer wrong , what would be the right one?
Answer:
I probably think it's to achieve a higher energy state
Explanation:
-
What is the molarity when 25.0 g of the compound NaClO3 is placed in 85.0 mL of solution?
Answer: Molarity when 25.0 g of the compound [tex]NaClO_{3}[/tex]is placed in 85.0 mL of solution is 294.12 M.
Explanation:
Given: Mass = 25.0 g
Volume = 85.0 mL (1 mL = 0.001 L) = 0.085 L
Molarity is the number of moles of a substance divided by volume in liter.
Hence, molarity of given solution is calculated as follows.
[tex]Molarity = \frac{mass}{Volume (in L)}[/tex]
Substitute the values into above formula as follows.
[tex]Molarity = \frac{mass}{volume (in L)}\\= \frac{25.0 g}{0.085 L}\\= 294.12 M[/tex]
Thus, we can conclude that molarity when 25.0 g of the compound [tex]NaClO_{3}[/tex]is placed in 85.0 mL of solution is 294.12 M.
what is love?
A)don't hurt me
B)don't hurt me
C)No more
Answer:
C
Explanation:
I think it is a ever lasting process of pain and happiness cause the ones that are closest to you can make it hurt most but they can also make your day So probably
Please help with this , it’s very important
Explanation:
a) Cr is acid K is base
b) Ca is base and the other left part is acid
c)Ca is base and F2 is acid
d) NH4 is acid and SO4 is base
A pencil has about 2.4 grams of graphite(carbon) in it. How many atoms is this?
Answer:
2
Explanation:
CH4+xO2=CO2+2H2O. Find x
Answer:
x = 2, [tex]CH_{4} + 2O_{2} = CO_{2} + 2H_{2}O\\[/tex]
Explanation:
This question is related to balancing chemical equations.
[tex]CH_{4} + xO_{2} = CO_{2} + 2H_{2}O\\[/tex]
- There must be the same amount of carbons (C), hydrogens (H), and oxygens (O) on each side of the equals sign.
- There is already 1 carbon and 4 hydrogens on each side of the equals sign. The big number in front of the chemical compound multiplies into the individual elements and can be multiplied by the subscripts to get the total number of each element.
- On the right side of the equation, there are 4 oxygens (O), and on the left side, there are 2. In order for there to be 4 oxygens (O) on the left side, there must be a 2 in front of [tex]O_{2}[/tex].
Therefore, x = 2.
[tex]CH_{4} + 2O_{2} = CO_{2} + 2H_{2}O\\[/tex]
Why chemical industry important for the nation with its examples.
Explanation:
employment in the country.
economic boom n latest techonology.
less poverty.
more development.
more jobs for people.
increase in exports which will make large profits n will be utilized in the development of country.
GDP per capita will increase.
high standard of living.
Add more drink mix until you notice a color change. Have you increased or decreased the concentration? (Higher number means a higher concentration).
Answer:
Increased the concentration
Explanation:
Complete Question
Open the simulation by pushing the play button. Begin by dragging the concentration tester overto the liquid and add drink mix until the concentration reaches approximately 2.oo mol/L. This means there are 2.00 moles of the drink mix in 1 Liter of the solution. Add more drink mix until you notice a color change. Have you increased or decreased the concentration? (Higher number means a higher concentration).
Solution
Drink mix is basically the solute which is added to solvent i.e water.
The higher is the amount of drink mix in the solvent, the higher is the concentration of the solute and hence darker is the color of the drink.
Hence, in the case the concentration of the drink has been increased.
Describe wildfires. How is climate change impacting wildfires ?
Answer:
Hey mate.......
Explanation:
This is ur answer......
Climate change has been a key factor in increasing the risk and extent of wildfires in the Western United States. Research shows that changes in climate create warmer, drier conditions. Increased drought, and a longer fire season are boosting these increases in wildfire risk. But global warming has changed some of the underlying variables that make wildfires more or less likely to occur every year. Warmer temperatures increase the likelihood that fires will burn more intensely. They also cause snow to melt sooner, and lead to drier soils, forests, and plants, which act as kindling.
Hope it helps!
Brainliest pls!
Follow me! :)
An atom of an element contains 12 protons, 12 neutrons, and 12 electrons. This element is in Group A) 1 B) 2 C) 6 D) 18
Answer:
B) 2
Explanation:
This is because the element in discussion is magnesium which has 12 protons and it falls in group 2 (the second column in periodic table)
what the total charge of an atom with 8 protons 10 neutrons and 10 electrons?
Answer:
since an oxygen atom normally has 8 protons and 8 electrons, this ion has 10 electrons (-10 charge) and 8 protons (+8 charge) giving it a charge of -2 (-10 + 8 = -2).
Explanation:
What is the molarity of a solution made from dissolving 3.0 moles of KCl in 500 mL of solution?
A. 750 M KCl solution
B. 3.0 M KCl solution
C. 0.06M KCl solution
D. 6M KCl solution
Answer:
najah zggs haihß hajoa ha8 a an àjàhajß
Which elements are the transuranium elements? Use the periodic table link from the tools bar to answer the question.
those with atomic numbers from 93 to 118
those with atomic numbers 2, 10, 18, 36, 54, and 86
those with atomic numbers 3, 11, 19, 37, 55, and 87
those with atomic numbers from 89 to 103
Answer:
(A) those with atomic numbers from 93 to 118
Explanation:
got the answer from q**zlet. hope this helps :)
Question 1
Part A
Describe the sequence of adding ingredients to make the recipe for condensed tomato soup. To mix the ingredients, you have an industrial-sized vat with a capacity of 800 L. You also have the ability to heat what is in the vat and/or stir the vat, both of which require energy and therefore, cost you money. Focus on the fact that the manufacturing process should be time efficient and cost efficient in terms of energy use. Be sure to refer to the solubility charts or graphs that you find for salt and sugar during your research. Finally, presume that the tomato powder has low solubility which is not temperature dependent.
Part B
What changes could be made to optimize the manufacturing process?
Answer:
Part A:
"360 grams of NaCl can be dissolved in 1 L water. So, 2000 grams sugar can be dissolved in 1 L water then we can say that the solubility of salt is lesser in water as to sugar and both heightened by increasing the temperature. If we make a batch of 800 L we can add sugar, 1600 kg at 25 0c. We can add salt is 288 kg at 25 0c and the ingredient tomato is having low solubility."
Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/8061-describe-the-sequence-of-adding-ingredients-to-make-the-recipe.html
Part B:
'Manufacturers can generate new value minimize cost and increase operational stability by focusing on 4 broad areas; Management, Supply Circle, Product Design, and Value Recovery.'
Read more at Answer.Ya.Guru – https://answer.ya.guru/questions/2807911-what-changes-could-be-made-to-optimize-the-manufacturing-process.html
In order to make tomato soup, the salt NaCl is first added, then followed by sugar and finally the tomato powder.
What are the ingredients required in making tomato soup?Tomato soup is made of the following ingredients:
Tomato powder salt, NaClsugarIn order to make tomato soup, the salt NaCl is first added, then followed by sugar. This is to ensure increase in the boiling point of water and to reduce the heating time of the tomato soup.
The solution is heated to induce more dissolution if solute and finally the tomato powder is added.
In order to optimize the manufacturing process, changes should be made in the design, supply and composition of the soup.
Therefore, an optimized manufacturing process will reduce cost of production.
Learn more about tomato soup at: https://brainly.com/question/21475711
PLEASE HELP MEEEEEEEEEEEEE
Answer:
Explanation:
THE BEST ANSWER IS CCC