According to this balanced equation, how many grams of water (H.0) form in
this reaction?
Beo
2HCI
+
BeCl2
79.919
Н,0
?
25.019
72.919
A. 177.84 grams
B. 127.82 grams
C. 32.00 grams
O D. 18.02 grams
Answers
Answer:
your simpal answer is 177.32
Related Questions
The motion of particles creates a heat energy. True or false
Answers
True. Thermal energy, which is quantified as heat, is the movement of particles inside a material. Particles exchange energy in the form of heat as they travel more quickly or collide with one another.
Hence, thermal energy may be produced by the movement of particles.
The movement of particles within a material results in the production of thermal energy, often known as heat energy. Kinetic energy, which occurs when particles travel more quickly, or potential energy, which occurs when particles vibrate more quickly, might cause this movement. As particles contact, heat is transferred from one particle to the next, and this energy transfer lasts until the substance reaches thermal equilibrium. The temperature and quantity of heat energy within the material increase with particle mobility. Understanding this concept is crucial for comprehending a variety of phenomena, such as heat transport, thermodynamics, and the behaviour of matter in different states.
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C4H10(1) + O2(g)→ CO2(g) + H2O(l)
How many moles of O₂ are needed to fully combust 6.77 moles of C4H10?
Answers
Calculate the number of moles of alkali in 25cm3 of NaOH solution used.
Answers
Answer:
0.001mol
Explanation:
volume (NaOH) =25cm³ =0.025dm³
molar volume = 22.4dm³
n = V = 0.025 = 0.001mol
Vm 22.4
Egyptian papyrus with 63% of its original carbon-14 atoms what is the age year
Answers
Answer:
help me
Explanation:
plz
Suppose you are given a Stock Solution of 15.406 M hydrochloric acid. What volume of water must you add have ready to add your acid to (in mL) to prepare a solution with a hydrochloric acid molar concentration of 3.361 M and a volume of 372.510 mL? NOTE: When typing your answer below, round your answer to 3 decimal places. Show you work for part marks. Do not forget to upload your steps. Keep units according to the givens in the question.
Answers
M1V1 = M2V2
where M1 and V1 are the molar concentration and volume of the stock solution, and M2 and V2 are the molar concentration and volume of the final solution. We can use this formula to find the volume of water that we need to add to the stock solution to prepare the final solution.
Plugging in the given values, we have:
15.406 M x V1 = 3.361 M x 372.510 mL
To solve for V1, we can divide both sides of the equation by 15.406 M:
V1 = 3.361 M x 372.510 mL / 15.406 M
V1 = 24.227 mL
Therefore, we need to add 24.227 mL of water to the stock solution of 15.406 M hydrochloric acid to prepare a solution with a hydrochloric acid molar concentration of 3.361 M and a volume of 372.510 mL.
data table for lab report investigating heat transfer and thermal energy conservation
Answers
Here's a sample data table for a lab report investigating heat transfer and thermal energy conservation: CLICK ON IMAGE
In this table, each trial represents a separate experiment conducted to investigate heat transfer and thermal energy conservation. The initial temperature is the starting temperature of the system, the final temperature is the temperature after heat transfer has occurred, and the mass of water and metal are measured to calculate the specific heat capacity of the metal.
The specific heat capacity of the metal is a key variable in understanding how heat is transferred between the water and the metal. This data table can be used to analyze the results of the experiments and draw conclusions about the relationship between heat transfer and thermal energy conservation.
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PROBABLE QUESTION
Can you explain how the data table can be used to analyze the results of the experiments and draw conclusions about heat transfer and thermal energy conservation?"
An atom has atomic number 13
It looses three electrons to become stable
Name the type of ion formed when it looses three electrons. Show with illustrations
Answers
Answer:
\(Al^{3+}\)
Explanation:
Aluminum has 13 protons. When it loses electrons it becomes positive. So losing each electron adds +1 making the resulting ion \(Al^{3+}\)
Choose the correct answer. The color of the iguana is an adaptation to its:
A) food B) predators C) climate D) habitat
Explain your answer(s) in 1-2 complete sentences.
Answers
Answer:
B
Explanation:
so that way they can hide away from the predators
Animals inherit traits from their parents. They pass some of these same traits on to their children. Suppose a pair of animals has a trait that helps them survive in their environment. They pass this trait on to their children. What effect will that probably have on the children? A. The children will be more likely to survive than if they did not have the trait. B. It will not affect the children. C. The children will be more likely to survive than their parents were. D. The children will be able to adapt if the environment changes.
Answers
Answer:
A. The children will be more likely to survive than if they did not have the trait.
Explanation:
Process of elimination
B. It will not affect the children.
Cannot be true, if it didn't impact the children then how would survival of the fittest work?
D. The children will be able to adapt if the environment changes.
That just... not how adapting works when it comes to evolution.
C. The children will be more likely to survive than their parents were
Everyone has the same trait, everyone is equal in that regard.
A. The children will be more likely to survive than if they did not have the trait.
"Suppose a pair of animals has a trait that helps them survive in their environment." The trait helps them survive. Not having the trait makes them less likely to survive. A is correct
How many moles are contained in 50. 0L of C2H6 gae at STP
Answers
There are 2.23 moles of C2H6 gas in 50.0L at STP. To determine the number of moles in a given volume of gas at STP, we can use the ideal gas law equation.
The ideal gas law equation is PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature. At STP, the pressure is 1 atm and the temperature is 273.15 K. So the calculation is
PV = nRT
n = \(\frac{P.V}{R.T}\)
n = \(\frac{(1 atm) (50 L)}{(0.0821 L.atm/mol.K)(273.15K)}\)
n = 2.23 mol
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Convert 550 Hm to mm
Answers
Answer:
55,000,000
Explanation:
550 hectometers [hm] = 55,000,000 millimeters [mm]
The graph represents the change in that occurs when food is cooked over a charcoal grill. Which statement correctly explains the graph?A. The reactants are unlit charcoal that has already released its energy, and the products are charcoal that has already burned.B. The reactants are charcoal that has already burned and released its energy, and the products are unlit charcoal.C. The reactants are unlit charcoal, and the products are charcoal that has already burned and released its energy.D. The reactants are charcoal that has already burned, and the products are unlit charcoal that has already released its energy.
Answers
The answer is C.
The reactants are charcoal that is unlit + oxygen and the products are the burnt charcoal + energy.
\(C_xH_y+O_{2\text{ }}\rightarrow CO_2+H_2O\text{ + heat}\)So for every combustion reaction like this one, CxHy is the wood. So before you light the wood, it is actally a reactant together with oxygen, because without oxygen the wood will not burn. So under the influence of heat, wood produces substances like carbon dioxide and heat, the moment you see wood burning it it already producing products, CO2 and heat (which is the fire). This is a combustion reaction.
Combustion reaction is exothermic because it releases energy.
What the Purpose of seeds
Answers
Answer:
The purpose of all seed is reproduction and is to grow a new plant, thus propagating the species.
pleasee helpppp
i have posted this many times m=but no one has helped :(
will mark brainliest!! :)
Answers
Answer:
its 1 transferd electrons 2 shared electrons 3 metal only
Explanation:
Answer:
1 transferd electrons 2 shared electrons 3 metal only
Explanation:
Balance the following chemical equation by adding in Coefficients to the blanks
___Al2(SO4)3 +___ZnCl -->___AlCl3+ZnSO4
Answers
Answer:
Explanation:
The sum of the coefficients is 1 + 3+ 2+ 3 = 9
Answer:
There is no answer. This equation is unbalancable.
Explanation:
The numbers for Al always throw off the entire equation!
Scientists often need to represent very small numbers and very large number, which have many digits. These number can be so long that they are difficult to read. So, scientists developed a simpler method to represent these numbers, called
Answers
Answer:
Scientific notation
Explanation:
For example 10000000000 =10 to the power of ten
Can someone help me for one of these questions it would mean a lot pls
Answers
Answer:
Hope this helps you
What is the value of Kbfor the formate anion, HCOO–Ka(HCOOH) = 2.1×10–4
A) 2.1×10–4
B) –2.1×10–4
C) 2.1×10–18
D) 4.8×10–11
E) 6.9×10–625
Answers
The value of Kb for the formate anion HCOO– is 4.8×10–11. Kb is the dissociation constant of a base in aqueous solution. It is also known as the base dissociation constant or the equilibrium constant for base dissociation Ka, on the other hand, is the dissociation constant of an acid.
Therefore, the correct option is D.
The relationship between Ka and Kb is defined by the ion product constant of water, which is equal to 1.0 × 10-14 at 25°C. The Kb of HCOO– can be calculated using the following relationship:Ka × Kb = KwKw is the ion product constant of water, and it equals 1.0 × 10-14 at 25°C. Thus, the value of Kb for the formate anion HCOO– is 4.8×10–11.
Ka is the acid dissociation constant of a weak acid. Kb is the base dissociation constant of a weak base. The acid dissociation constant (Ka) and the base dissociation constant (Kb) are related to the ion product constant of water (Kw) as follows:Ka × Kb = KwThe ion product constant of water (Kw) is equal to 1.0 × 10-14 at 25°C. The Kb of HCOO– can be calculated using the following relationship .
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how many milligrams of atropine sulfate are needed to make 30 ml of a 1:200 solution
Answers
15mg of atropine sulfate is needed to make 30ml of a 1:200 solution
To find the mass of atropine sulfate, first, the ratio should be converted into a percentage. The given ratio is 1:200
Percentage mass = (1/200) x 100
= 1/2%
Percentage mass = 0.5%
Let us consider the mass of atropine sulfate required to be x
Therefore,
0.5/100 ml = x / 30ml
x = (0.5/100)30
x = 0.15g
On converting 0.15g to milligrams we get,
x = 0.15 x 1000
x = 150mg
Therefore, the required mass of atropine sulfate to make 30 ml of a 1:200 solution is 150mg.
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is the following true or false every element in the periodic table follows the aufbau principle
Answers
Answer:
True
Explanation:
It is true that every element in the periodic table follows the Aufbau's principle.
The principle states that "the sublevels with lower energies are filled up before those with higher energies".
Sublevels do not fill up in numerical order. This is true when writing the electronic configuration of all atoms on the periodic table.Answer:False
Explanation:
select a mineral, rock, or gemstone from the united state and explain why you selected it. discuss how the mineral, rock, or gemstone you selected is used in everyday life, and the processes by which they formed.
Answers
Answer: I have selected the gemstone turquoise from the United States. Turquoise is a semi-precious gemstone composed of copper aluminum phosphate. It is found in the deserts of Nevada, Arizona, Colorado, and New Mexico. Turquoise has a long history of use, with some pieces found in Ancient Egyptian tombs and Native American jewelry. Turquoise is still used today for making jewelry, figurines, and inlays for furniture. It is also often used to decorate clothes and other items.
Turquoise is created through the process of sedimentary precipitation, which involves the accumulation of minerals in slow-moving water. This process takes thousands of years, and is further shaped by the elements, such as air and water, which break down the mineral and change its color. It can also be artificially altered to improve its color.
In everyday life, turquoise is primarily used for jewelry, but it is also thought to possess healing properties. In some cultures, turquoise is believed to bring good luck and is used to ward off evil spirits. Turquoise has been a popular choice for making jewelry and decorative objects since ancient times. It is a beautiful, vibrant gemstone with a wide range of colors and patterns, which makes it a highly sought after material.
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Viết phương trình điện li của KOH trong nước
Answers
Answer:
Điều này là kết quả của quá trình hydrat hóa các ion: lực hút của các phân tử nước đối với Công thức phản ứng của kali hydroxit với các ion nước. Phản ứng có thể được viết dưới dạng KOH (s) → K⁺ (aq) + OH⁻ (aq).
Explanation:
Help would be greatly appreciated, picture of the question is here
Answers
Based on the results obtained in the table, the solute is a solid because it has an increase in the amount dissolved as temperature increases.
The correct option is B.
What is the effect of an increase in temperature on the solubility of solutes?The average kinetic energy of the solute molecules increases along with the solution's temperature. As a result, the molecules have a lower ability to bind together and dissolve more easily. Therefore, when the temperature rises, solid states become more soluble.
However, for solutes that are gas, an increase in temperature decreases the solubility of the gas, and the gas comes out of the solution.
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11. An alloy contains 62 % by mass of aluminum and 38% by mass of unknown element .If 10.0
grams of this alloy has a volume 4.20 cm³ ,use the table of density below to identify the
unknown element in the alloy.
Element
Density g/cm³
(A) Beryllium
Copper
8.96
Aluminum
2.70
(B) Copper
Beryllium
1.85
(C) Iron
Iron
7.87
(D) Silver
Silver
10.49
Answers
Based on the given information and the densities provided in the table, the unknown element in the alloy is most likely Beryllium. option(a)
To identify the unknown element in the alloy, we need to compare the density of the alloy with the densities of the elements listed in the table.
The density of the alloy can be calculated using the given information. We know that 10.0 grams of the alloy has a volume of 4.20 cm³. Density is defined as mass divided by volume, so we can calculate the density of the alloy as:
Density = Mass / Volume = 10.0 g / 4.20 cm³ ≈ 2.38 g/cm³
Now, we compare the calculated density of the alloy (2.38 g/cm³) with the densities listed in the table. From the given options, the closest density is that of aluminum, which is 2.70 g/cm³. The alloy's density is lower than the density of aluminum, which means it must contain an element with a lower density than aluminum.
The unknown element in the alloy is most likely Beryllium (option A) with a density of 1.85 g/cm³. The combination of 62% aluminum and 38% beryllium in the alloy would result in a density close to the calculated value of 2.38 g/cm³. option(a)
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Nate and Clara are drawing pictures with markers. There are 8 markers in a set. Nate has 9 markers and Clara has 7. What can Nate and Clara do so that each of them has a full set?
Answers
9-1=8
7+1=8
Radars can help meteorologists detect clouds and sailors detect submarines. Radars send out radio waves and record their echoes after the radio waves reflect off an object. Two radars send out radio waves
with the same frequency. The first radar sends radio waves through the air. The second radar sends radio waves through the ocean. What is true about these radio waves?
Answers
Answer:
D
Explanation:
Same Wavelength. Also cause i did the test
Answer:
They have the same wavelenght
Explanation:
Where are most algae found?
on the surface of lakes
growing on the ocean bottoms
floating on water world-wide
in forests around the world
Answers
Answer:
on the surface of lakes
Explanation:
Which of the following could be classified as a molecular element?
Question 1 options:
krypton
lithium
nitrogen
calcium
All four are classified as molecular elements.
Answers
Answer:
calcium is the correct answer to the question
1 of 101 of 10 Items
00:04 / 30:00
Assessment started: Unit 3 Exam-Retest.
Item 1
If pressure is constant, how is the volume of a gas related to its temperature?
Answers
Answer:
A
Explanation:
Trust me i just did this :)
calculate the relative atomic mass of a metal M given that 0.65g of metal forms 1.61g of a sulfate of formula M
Answers
The relative atomic mass of the metal, M is 65 g/mol.
What are the mole ratio of the metal and the sulfate?The mole ratio of the metal and the sulfate is calculated from the mass of the metal and the sulfate present in the compound.
Mass of the compound = 1.61 g
Mass of the metal, M, in the compound = 0.65 g
Mass of sulfate = mass of compound - the mass of metal
Mass of sulfate = 1.61 - 0.65
Mass of sulfate = 0.96 g
The formula of the compound is MSO₄
1 mole of the metal combines with 1 mole of sulfate
Moles of sulfate in the compound = mass / molar mass
Molar mass of sulfate = 96 g/mol
Moles of sulfate = 0.96 / 96
Moles of sulfate = 0.01 moles
Hence, the moles of metal in the compound is 0.01 moles
The relative atomic mass of the metal = 0.65 / 0.01
The relative atomic mass of the metal = 65 g/mol
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Complete question:
Calculate the relative atomic mass of a metal M given that 0.65g of the metal forms 1.61g of sulfate of formula MSO₄. (S = 32, O = 16).