Answer:
B. Water quality
Explanation:
B
1. magnesium hydroxide + sulfuric acid sulfate +————
2. calcium hydroxide + hydrochloric acid calcium
+ water+————
3. lead hydroxide + nitric acid lead nitrate +————-
4. sodium hydroxide + sulfuric acid
+ water————-
5. potassium hydroxide + citric acid potassium
+ water————-
6. silver hydroxide + hydrochloric acid chloride +———
7. aluminium hydroxide + phosphoric acid———-
Answer: 1. magnesium hydroxide + sulfuric acid = magnesium sulphate + water
2. calcium hydroxide + hydrochloric acid = calcium chloride + water
3. lead hydroxide + nitric acid = lead nitrate + water
4. sodium hydroxide + sulfuric acid = sodium sulphate + water
5. potassium hydroxide + citric acid = potassium citrate + water
6. silver hydroxide + hydrochloric acid = silver chloride + water
7. aluminium hydroxide + phosphoric acid = aluminium phosphate + water
Explanation:
A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.
The balanced chemical equations are :
1. magnesium hydroxide + sulfuric acid = magnesium sulphate + water
[tex]Mg(OH)_2(aq)+H_2SO_4(aq)\rightarrow MgSO_4(aq)+2H_2O(l)[/tex]
2. calcium hydroxide + hydrochloric acid = calcium chloride + water
[tex]Ca(OH)_2(aq)+2HCl(aq)\rightarrow CaCl_2(aq)+2H_2O(l)[/tex]
3. lead hydroxide + nitric acid = lead nitrate + water
[tex]Pb(OH)_2(aq)+2HNO_3(aq)\rightarrow Pb(NO_3)_2(aq)+2H_2O(aq)[/tex]
4. sodium hydroxide + sulfuric acid = sodium sulphate + water
[tex]NaOH(aq)+H_2SO_4(aq)\rightarrow Na_2SO_4(aq)+H_2O(l)[/tex]
5. potassium hydroxide + citric acid = potassium citrate + water
[tex]KOH(aq)+C_6H_8O_7(aq)\rightarrow C_6H_7O_7K(aq)+H_2O(l)[/tex]
6. silver hydroxide + hydrochloric acid = silver chloride + water
[tex]AgOH(aq)+HCl(aq)\rightarrow AgCl(s)+H_2O(l)[/tex]
7. aluminium hydroxide + phosphoric acid = aluminium phosphate + water
[tex]Al(OH)_3(aq)+H_3PO_4(aq)\rightarrow AlPO_4(aq)+3H_2O(l)[/tex]
Answer:
. magnesium hydroxide + sulfuric acid = magnesium sulphate + water
2. calcium hydroxide + hydrochloric acid = calcium chloride + water
3. lead hydroxide + nitric acid = lead nitrate + water
4. sodium hydroxide + sulfuric acid = sodium sulphate + water
5. potassium hydroxide + citric acid = potassium citrate + water
6. silver hydroxide + hydrochloric acid = silver chloride + water
7. aluminium hydroxide + phosphoric acid = aluminium phosphate + water
Explanation:
is the answer llllllll
Plss answer the question in the picture. If you actually answer I will give you brainilest!!!
Answer:
hey :)
your answer is D.
Explanation:
To find density, you must divide mass and volume.
8 divided by 4 is 2
6 divided by 6 is 0
4 divided by 2 is 2
hope i helped any :))
Item 17 Which symbol represents a salt? C2H2 C6H12O6 KCl O2 Item 17 Which symbol represents a salt? C2H2 C6H12O6 KCl O2
Answer:
The symbol that represent a salt is CaCl2
Explanation:
The CaCI2 is the calcium chloride that an organic compound now a salt having a chemical formula i.e. CaCI2. Also it is non-color cyrstalline solid at the room temperature also it is highly soluble in the water
Therefore as per the given situation the symbol that represent a salt is CaCI2
This is the answer and the same is not provided in the given options
In some areas of Texas, rainfall quickly soaks through layers of porous rock and is stored naturally underground. The water is then pumped into homes for people to use. What would have the greatest impact on the amount of water available for people in this area?
Explanation:
The amount of rainfall would have the greatest impact on the amount of water available for people in this area. The more the rainfall the more water soaks through layers of porous rocks.Hence, level of water table will remain sufficient for easy pumping of water to the homes.Texas receives plenty of rainfall in a year.In a single year the region can receive up to 48 inches (1,200 mm) of precipitation, and flooding is common near rivers and in low-lying areas. Therefore water table remains intact throughout the year.
8SnCl4
How many atoms
Answer:
i think i like 14 or 8 atom
Explanation:
According to the chemical formula shown below, all of the following elements are found in phosphoric acid EXCEPT
A. Hydrogen
B.Oxygen
C.Phosphorus
D.Potassium
Please asap i need help
The downward movement of water through pores and other spaces in soil due to gravity is called____
A Iniltration
B evaporation
C soakation
D seepage
Answer:
A Infiltration
Explanation:
The downward movement of water through pore spaces and other spaces in soil due to gravity is called infiltration.
Infiltration is greatly due to the force of gravity forcing water through pore spaces downward.
The ground water recharge is also impacted by this downward motion of water. In areas where the surface of the soil is covered with concrete, infiltration is not possible. Soil water content is due to the movement of water by infiltration.
What is the definition of momentum?
A- The amount of matter in an object.
B-Mass in motion.
C-Speed with direction.
D- The resistance to change motion
Answer:
B. Mass in motion. Is the definition of momentum
Which set of the below elements are in the same period.
1. Li, Be, C, O
2. H, Li, Be
3. F, CI, Br, I
4. H, He, Li, Be
1
Explanation:
because they period two
Answer:
1
Explanation:
HELP PLEASE!!!
How are both stability and change seen in properties of elements?
Answer:
In both natural and built systems, stability and change are an important focus of study for both scientists and engineers. Stability refers to a system that is unchanging. ... A dynamic equilibrium exists when chemical reactions or physical movements occur at rates that balance out, creating no net change in a system.
Answer:
In both natural and built systems, stability and change are an important focus of study for both scientists and engineers. Stability refers to a system that is unchanging. ... A dynamic equilibrium exists when chemical reactions or physical movements occur at rates that balance out, creating no net change in a system.
Explanation:
Identify the formula for ammonium nitrate
(NH4)3NO3
NH4(NO2)2
NH4NO2
Answer:
NH₄NO₃
Explanation:
In salt naming, the cation is named first, then you must put the name of the anion. In the same way when you are writting the formula. Also, the global charge of a salt is always 0.
Thus, we must write each ion and its charge:
Ammonium: NH₄⁺
Nitrate: NO₃⁻
As both ions have the same charge, the formula is:
NH₄NO₃The cation first and then the anion.
What type of chemical reaction does this represent.
Answer:
combustion
Explanation:
your welcome :)
what are alkenes and there chemical property
Answer:
Alkenes contain a double bond that is composed of one sigma and one pi bond between two carbon atoms. The sigma bond has similar properties to those found in alkanes , while the pi bond is more reactive. The carbon atoms in the double bond are sp² hybridized , forming a planar structure.
Explanation:
Believe it!!!
What is an empirical formula
An empirical shows the simplest ratio among atoms in a compound .
More informationan empirical formula is the simplest formula for a compound .For example, H2O2 can be reduced to a simpler formula. Determining a Molecular Formula from an Empirical Formula The empirical formula for a compound is P 2 O 5 . Its experimental molar mass is 284 g/mol.For example, the empirical formula of benzene (C5H5) is Qj, - because the mole ratio of carbon am'hydrogen is 1:1.PLZ HELP !!!!!
Which statement correctly describes the main difference between body waves and surface waves?
Select one:
Surface waves are only longitudinal waves and body waves are only transverse waves.
Surface waves only travel across oceans and body waves travel across the Earth’s crust.
Surface waves are less damaging to man-made structures than body waves.
Surface waves travel across the Earth’s surface and body waves travel through the Earth’s interior.
Surface waves travel across the Earth’s surface and body waves travel through the Earth’s interior.
there you go :)
Pls help me use the graph to answer the questions
Answer:
The first question is option 2
and the second question in option 1
Explanation:
Fluorine gas reacts violently with water to produce hydrogen fluoride and ozone according to the following unbalanced equation. How many moles of o, are created assuming STP conditions are in effect, given 1.88 moles of fluorine gas were
used?
__F2+__H20—__HF+__03
Answer:
Fluorine gas reacts violently with water to produce hydrogen fluoride and ozone according to the following unbalanced equation. How many moles of o, are created assuming STP conditions are in effect, given
Explanation:
3
A solution is oversaturated,Which could be done to decrease the oversaturation?
dilute the solution
add more solute
cool the solution
add a different solute
A solution is oversaturated,Which could be done to decrease the oversaturation?
dilute the solution
add more solute
cool the solution
add a different solute
Answer:
AAAAAAAAAAAAA i just finished the exam
Explanation:
What is the cation and anion for Aluminum chloride
Answer:
For, Aluminum chloride, aluminum = AL+ so here aluminum is the cation
But Chloride is the anion = CL -
So cation is positive and anion is negative
PUN
Which of the following is an example of a Response to Change? (Read carefully, the other three are Adaptations)
(A)Thoms and Spikes as a protective mechanism
(B)Polar Bears transparent fur and black skin
(C)Plants turning toward the light
(D)Frogs webbed feet
Many human activities result in carbon dioxide emissions.
Our carbon footprint is a measure of how much carbon dioxide we each cause to be produced.
(a) Why should we be concerned about our carbon footprint?
(b) Most power stations in the UK burn coal.
Coal was formed from tree-like plants over millions of years.
Suggest why burning wood instead of coal would help to reduce our carbon footprint.
Answer:
: the average human-driven CO2 emissions per year climbed 1.4%
every household makes about 7 tons worth of Co2
A C02 footprints are produced at such high rates and hurts plants and the environment
B coal is a very inexpensive and efficient way to generate electricity. Since its a large quantity of them which still produces alot co2 unlike wood, burning wood doesn't produce as much but it's much harder to ignite and get to last because it takes coal almost 100 degrees and wood takes about 700 degrees
Identify this parasitic organism.
Answer:
Schistosoma or blood fluke
Explanation:
Parasitic organisms are defined as the organisms that depends on other organisms body called host for their nutrition and harm the host body.
The given image is of Schistosoma that is commonly known as blood flukes. Schistosoma are flatworms which causes group of infections in humans known as schistosomiasis. Schistosoma is a water-borne parasite and found in veins near the human intestine.
Hence, the correct answer is "Schistosoma or blood fluke".
How are sodium (Na) and potassium (K) similar?
A. They rarely react.
B. They are highly reactive.
C. They are hard metals.
D. They are soft nonmetals.
Answer:
B. They are highly reactive.
Explanation:
Answer:
B: They are highly reactive
Explanation:
Sodium(Na) and potassium(K) are in the same family/group which is the Alkali Metal group. These groups have their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water. This is because enough heat is given off during the exothermic reaction to ignite the H2(g). Therefore, they are similar because of their reactivity.
Hope I helped!
What kind of cell has a nonspontaneous voltage?
An electrolytic cell
A dry cell
A wet cell
A voltaic cell
Answer:
dry cell
Explanation:
because it stops when salt distribution becomes equal as bridge is not added
Answer:
a
Explanation:
a p e x :)
Write the following numbers in scientific notation: a) 0.0006730 b)50000.0 c)0.000003010 d) 132.40 e)2232
Answer:
a)6.730×10⁻⁴
b)5×10⁴
c)3.010×10⁻⁶
d)1.3240×10²
e)2.232×10³
The given numbers in scientific notation are [tex]6.730 \times 10^{-4}[/tex], [tex]5.0 \times 10^4[/tex], [tex]1.3240 \times 10^2[/tex], [tex]2.232 \times 10^3[/tex] and [tex]2.232 \times 10^3[/tex], respectively.
Scientific notation is a way of expressing very large or very small numbers in a compact and convenient form.
To express a number in scientific notation, we need to write the number in the form: [tex]\rm a\times 10^b[/tex]
a) 0.0006730 can be written in scientific notation as [tex]6.730 \times 10^{-4}[/tex]. The decimal point was moved 4 places to the right, so the exponent is negative 4.
b) 50000.0 can be written in scientific notation as [tex]5.0 \times 10^4[/tex]. The decimal point was moved 4 places to the left, so the exponent is positive 4.
c) 0.000003010 can be written in scientific notation as [tex]3.010 \times 10^{-6}[/tex]. The decimal point was moved 6 places to the right, so the exponent is negative 6.
d) 132.40 can be written in scientific notation as [tex]1.3240 \times 10^2[/tex]. The decimal point was moved 2 places to the left, so the exponent is positive 2.
e) 2232 can be written in scientific notation as [tex]2.232 \times 10^3[/tex]. The decimal point was moved 3 places to the left, so the exponent is positive 3.
Therefore, [tex]6.730 \times 10^{-4}[/tex], [tex]5.0 \times 10^4[/tex], [tex]1.3240 \times 10^2[/tex], [tex]2.232 \times 10^3[/tex] and [tex]2.232 \times 10^3[/tex], are the scientific notation for the given numbers.
Learn more about Scientific notation here:
https://brainly.com/question/19625319
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Two cars travel next to each other. One speedometer reads
20 meters per second and the other reads 72 kilometers per
hour. If arrows represent speed, which pair of arrows
represents the relationship of speeds of these two cars?
The blue arrow is always the 20 meters per second car.
PLEASE HELP
Answer:
The pair of arrows which represents the relationship of speeds of the two cars is;
The second option as shown in the attached drawing
Explanation:
The given parameters are;
The reading on the speedometer of one car = 20 m/s
The reading on the speedometer of the other car = 72 km/h = 20 m/s
The blue arrow = 20 m/s
Therefore, given that the speeds of both cars are equal (20 m/s = 72 km/h = 20 m/s), the pair of arrows that represent the relationship of speeds of the two cars is two equal length blue arrows which is the second option
The attached diagram showing the pair of arrows that represents the relationship of speeds of the two cars is drawn using Microsoft Visio.
84 pt =_____ qt
5.0 gal =_____ L
Answer:
84 pt =__50.4399___ qt
5.0 gal =___18.9271__ L
Explanation:
Have A Wonderful Day!!
Answer: 84 pints = 42 quarts
5.9 gallons = 1.89271
Explanation:
PLZ ANSWER IN THE NEXT 24 HOURS MANY POINTS!!!!!!!!
You have found a new element with the atomic mass of 119. In a paragraph explain where you would put in on the periodic table and why you would put it there. What type of properties would this element have? What would you call it?
Answer:
Ununennium.
Explanation:
Ununennium, also known as eka-francium or element 119, is the hypothetical chemical element with symbol Uue and atomic number 119. It's Mass number is [315] (predicted), as we as it is existing on the periodic table hence its symbol: Uue
Answer B
Explanation:
hereI wpould put it on t
How can I determine basic oxide from peroxide by looking
does mitosis begin with a diploid cell?
Answer:
no
Explanation:
