Answer:
Ice is a molecular and crystalline solid.
Explanation:
Water freezes at 0 degrees Celsius; it has strong molecular bonds between the hydrogen and oxygen atoms of each molecule, and weaker intermolecular bonds between each molecule of water. The polarity of the molecules helps align them into an organized, repeating patterned, crystalline structure when a solid.
I need help, decreases or increases
Answer:
increase
Explanation:
Predict the products
Answer:
1. No reaction.
2. ZnCl₂ + H₂
3. CaCl₂ + H₂
Explanation:
1. Cu + HCl —> ___
From the reactivity series of metals, H is higher that Cu in the series and so, Cu can not displace H from solution.
Therefore, no reaction will occur.
2. Zn + HCl —> ___
Zn is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.
The balanced equation is given below:
Zn + 2HCl —> ZnCl₂ + H₂
3. Ca + HCl —> ___
Ca is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.
The balanced equation is given below:
Ca + 2HCl —> CaCl₂ + H₂
I’ll really appreciate it if you help me out on this one .
Answer:
i'd say D
Explanation:
the dependent variable is the change that happens
Where glucose is broken down into smaller molecules to produce energy. The second part of the process takes place in the
Answer:
Mitochondria
Explanation:
Glucose in an energy molecule contained in carbohydrate food substances. The end product of the digestion of carbohydrate is glucose which is broken down to produce energy.
The sequence of breakdown of glucose is as follows; In the first step, 6-carbon glucose is broken down into two molecules of 3-carbon pyruvic acid. This occurs in the cytoplasm of the cell. It is an anaerobic process.
In the second step which occurs in the mitochondrion, each of the molecules of pyruvic acid is now oxidized to carbon dioxide and water and energy is produced in the process.
what is the equivalent weight of sodium trioxocarbonate (IV) in the reaction between Hydrochloric acid and sodium trioxocarbonate (IV)?
Correct answer gets brainliest. This is urgent.
Answer:
Standard acid-base reaction in two stages:
Na2CO3 + HCl → NaHCO3 +NaCl
NaHCO3 + HCl → NaCl + CO2 + H2O
If only a small quantity of acid is added (and the overall solution remains above pH 7), the reaction would stop at stage 1 and you’d be left with an aqueous solution of sodium chloride and sodium bicarbonate. Adding more acid would lead to the bicarbonate being converted to carbon dioxide and water, with the CO2 coming out of solution as a gas and more sodium chloride being produced.
Help which one will it be
Answer:
D
Explanation:
Answer:
the answer is D I did that one in 5th grade
Please help asap!
Subject: science
I just need some easy answers :)
Answer:
help with what? Let me know in the comments! :)
Explanation:
find the area given rectangle.
The length and and breadth of a rectangle are 3abc³ and 4abc units. The area of rectangle is __ sq.unit .
Answer:
The perimeter of a Rectangle P= 2(l + b)
Area of a Rectangle A = l × b
the cl-cl bond will react more readily, because it has a
The Cl-Cl bond will react more readily because it has a lower bond energy than the C- H bond.
What is bond energy?The bond energy refers to the energy required to break the bonds that links two atoms together in a molecule. It is equal to the energy that is evolved when the bond is formed.
In comparing the Cl-Cl bond with the C-H bond, we will find out that the Cl-Cl bond will react more readily because it has a lower bond energy than the C- H bond.
Learn more about bond energy: https://brainly.com/question/26141360
How is an acid or base like a solution? How is it different?
Predict the products:
Ni + KCl →
o Nickel chloride and potassium forms
o Hydrochloric acid forms.
o Potassium Nickel Chloride forms.
o No reaction occurs.
Explanation:
Ni + 2KCl → 2K + Nicl2
It form
potassium and nickel chloride.
How many moles of PbCl2 are produced
if 14 moles of AlCl3 are consumed?
3Pb(NO3)2 + 2AlCl3 + 3PbCl2 + 2A1(NO3)3
Answer:21 moles of PbCl2 formed
Explanation: 3Pb(NO3)2(aq) + 2AlCl3(aq) --> 3PbCl2(s) + 2Al(NO3)3(aq)
14 moles AlCl3 x 3 moles PbCl2/2 moles AlCl3 =21 moles of PbCl2 formed
The number of moles of PbCl₂ produced when 14 moles of AlCl₃ are consumed in the reaction is 21 moles
Balanced equation3Pb(NO₃)₂ + 2AlCl₃ —> 3PbCl₂ + 2Al(NO₃)₃
From the balanced equation above,
2 moles of AlCl₃ reacted to produce 3 moles of PbCl₂.
How to determine the mole of PbCl₂ producedFrom the balanced equation above,
2 moles of AlCl₃ reacted to produce 3 moles of PbCl₂.
Therefore,
14 moles of AlCl₃ will react to produce = (14 × 3) / 2 = 21 moles of PbCl₂.
Thus, 21 moles of PbCl₂ were obtained from the reaction.
Learn more about stoichiometry:
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Which equation represents a neutralization reaction?
Answer: The equation represents a neutralization reaction is HNO3(aq) + KOH(aq) → KNO3(aq) + H2O(). The answer is letter C.
Answer:
The answer is C.
Explanation:
Edge2021
What is the answer
A. North
b. South
C.east
D west
what is the formula for the compound formed by Ba2+ and Mn04 ?
Answer:
Barium permanganate | Ba(MnO4)2 - PubChem.
Description: Barium permanganate appears as ...
Synonyms: BARIUM PERMANGANATE7787-3...
Molecular Formula: Ba(MnO4)2 or BaMn2O8
Molecular Weight: 375.2 g/mol
Explanation:
Guys I need ur help I might as well just ask ur smarties for help ahah n yup I’ll be brainlisting;)
1) What have been the wider effect on the community of nuclear accidents? (Chernobyl)
Answer:
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How many L of a 7.5 H2SO4 stock solution would you need to prepare a dilute solution 100 L of 0.25M H2SO4
Answer:
3.33 L
Explanation:
We can solve this problem by using the equation:
C₁V₁=C₂V₂Where the subscript 1 refers to one solution and subscript 2 to the another solution, meaning that in this case:
C₁ = 0.25 MV₁ = 100 LC₂ = 7.5 MV₂ = ?We input the data:
0.25 M * 100 L = 7.5 M * V₂V₂ = 3.33 LThus the answer is 3.33 liters.
Any skilled chemists want to give me some backup?
Answer:
SO2, HCI and NH3
Explanation:
these three compounds vary inversely with the temperature
Iron is extracted from its ore (hematite) in the blast furnace. Which gas is produced as a waste product?
Answer:
CO2
Explanation:
CO2 or carbon dioxide is produced when iron is extracted from its ore. Carbon monoxide Co is used as reducing agent in iron extraction. In this reaction iron ore is reduced to iron and CO is oxidized to CO2 or carbon dioxide which is released in the process. There extraction of iron is redox reaction.
what are 5 functions of proteins
How many moles of O2 are produced in the decomposition of 24 g of water in the
following reaction?
2H20 - 2H2 + O2
*
The prevailing weather patterns of a region
Answer:
noun. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. a region or area characterized by a given climate: to move to a warm climate.
Explanation:
You need 2 pieces of bread, 1 tablespoon of peanut butter and 2 tablespoons of jelly to make a
sandwich. If you have 10 pieces of bread, 4 tablespoons of peanut butter and 20 tablespoons of jelly,
what is the limiting reactant?
Answer:
peanut butter
Explanation:
because you have 10 pieces of bread, 4 tbs of peanut butter, and 20 tbs of jelly, meaning you can make 5 sandwwitches with the bread, 4 sandwitches with the peanut butter, and 10 sandwitches with the jelly. so you dont have enough peanut butter to make all the sandwitches
According to the given scenario, If one have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, the limiting reactant will be peanut butter.
What is a limiting reactant?
The reactant that gets consumed first in a chemical reaction and result in limiting the formation of product is referred to as a limiting reactant.
According to the given scenario, the quantity of peanut butter will get consumed first so it will act as a limiting reactant.
Thus, If one have 10 pieces of bread, 4 tablespoons of peanut butter, and 20 tablespoons of jelly, the limiting reactant will be peanut butter.
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gold has a density of 19.32 g/cm3 if you cut a piece of gold in half how much will the density of each piece be?
Answer:
19.32 g/cm³
Explanation:
The density will remain the same no matter how many times you cut the gold. The density is g/cm³ or g/mL. Density is essentially how many grams 1 mL of a compound weighs.
Answer:
[tex]\boxed {\boxed {\sf 19.32 \ g/cm^3}}[/tex]
Explanation:
Density is the mass per volume (g/mL or g/cm³). It is an intrinsic property. This means it is not dependent on the amount and all samples of the same substance have the same density.
Therefore, if a piece of gold has a density of 19.32 grams per cubic centimeter and it is cut in half, the two pieces will have the same density.
Around what pH are most of the substances in your body? Why?
Answer:
The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH levels of blood and other fluids. The body's pH balance is also called the acid-base or acid-alkaline balance. The right pH levels are needed for good health.
What is the un-balanced equation for this
reaction?
Mg +0 --> Mgo
Mg + 02
--> Mg02
Mg + 02 --> Mgo
Answer:
2Mg + O2 → 2MgO
Explanation:
Why wasn't the water pasteurized? I chose Claim 1: If you follow the instructions, the POW kits will always heat the water above the correct temperature for pasteurization (65°C), but some people didn't follow the instructions Can someone help me support it?
Answer:
Claim 1- The evidence that supports my claim because Evidence Card b says “One man got sick, but his two children did not. He used water from Whip River. He used the cube to heat the first pitcher of water, which he gave to his kids, and then reused the cube without reheating for the second pitcher, which he drank himself.” My first piece of evidence is that if you don't follow thee directions then something bad would happen
Explanation:
why is nuclear a good energy source?
Answer
well it gets used
Explanation:
because it generates power through fission
At what temperature would the volume of a gas be equal to 45.7 L, if the volume of that gas was 33.9 L at 12.4ºC? 241.9 K 241.9 K 451.2 K 451.2 K 384.7 K 384.7 K 273.15 K
Answer:
The temperature will be 384.7 K
Explanation:
Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is maintained at a constant pressure, by means of a constant of proportionality that is applied directly. For a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature is directly related to the energy of the movement of the gas molecules. .
In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:
[tex]\frac{V}{T} =k[/tex]
Having an initial state 1 and a final state 2, the following is true:
[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]
In this case:
V1= 33.9 LT1= 12.4 C= 285.4 K (being 0 C= 273 K)V2= 45.7 LT2= ?Replacing:
[tex]\frac{33.9 L}{285.4 K} =\frac{45.7 L}{T2}[/tex]
Solving:
[tex]T2=45.7 L*\frac{285.4 K}{33.9 L}[/tex]
T2= 384.7 K
The temperature will be 384.7 K
Identify the mystery metal using the formula for density (Density = Mass/Volume). The object has
a mass of 95 g and a volume of 4.9 cm3.
O Silver 10.5 g/cm3
O Mercury 13.5 g/cm3
O Gold 19.3 g/cm3
O Copper 9.0 g/cm3