Answer:
A. It has a low pH
Explanation:
pH scale is 0 to 14 with 7 being neutral. Any thing below 7 is acidic Above 7 is a base or alkaline
Lower the pH the more careful you must be when handling the chemical. Strong Acid can do irreparable harm to eyes, skin, mucus membranes, eat holes in clothing etc. USE APPROPRIATE PPE
Below is pasted in definition you can look up in your textbook or online search.
pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
The label of a strong acid is referring a chemical that has a low pH value. Therefore, option (A) is correct.
What are acids and bases?An acid can be defined as any substance that has the ability to donate a proton to another substance. A base has the capability to accept a hydrogen ion from an acid.
Acidic substances are recognized by their sour taste and can be energetically favorable after a loss of hydrogen H⁺ ion. Bases are recognized by a bitter taste and can dissolve in water.
When bases combine with acids, they form salts and water as products. Bases turn red litmus paper into blue while acids turn blue litmus into the red.
The pH value of the acids on the pH scale lies between 0 to 7 and the pH value of the bases on the pH scale lies between 7 to 14. Therefore, the given chemical is strong acid so it will have a low pH value.
Learn more about acids and bases, here:
brainly.com/question/3941445
#SPJ6
Which two changes would make this reaction reactant-favored?
2H2 + O2 + 2H20 + energy
A. Increasing the pressure
B. Reducing the temperature
O C. Increasing the temperature
O D. Reducing the pressure
Two changes would make this reaction reactant-favored
C. Increasing the temperature
D. Reducing the pressure
Further explanationGiven
Reaction
2H₂ + O₂ ⇒ 2H₂0 + energy
Required
Two changes would make this reaction reactant-favored
Solution
The formation of H₂O is an exothermic reaction (releases heat)
If the system temperature is raised, then the equilibrium reaction will reduce the temperature by shifting the reaction in the direction that requires heat (endotherms). Conversely, if the temperature is lowered, then the equilibrium shifts to a reaction that releases heat (exothermic)
While on the change in pressure, then the addition of pressure, the reaction will shift towards a smaller reaction coefficient
in the above reaction: the number of coefficients on the left is 3 (2 + 1) while the right is 2
As the temperature rises, the equilibrium will shift towards the endothermic reaction, so the reaction shifts to the left towards H₂ + O₂( reactant-favored)
And reducing the pressure, then the reaction shifts to the left H₂ + O₂( reactant-favored)⇒the number of coefficients is greater
Answer: C. Increasing the temperature
D. Reducing the pressure
Explanation:
Name of Metallic compound VSe
Answer: vanadium selenide
Explanation:
Answer:
Vanadium(V)selenide
Explanation:
TRUE or FALSE? Alkali and Halogen group has the same valence.
Answer:
False
Explanation:
Alkali metals are found in group 1 of the periodic table. They only have one valence electron. The easiest way for them to complete an octet is to lose an electron. Halogens, on the other hand, have seven valence electrons and gain an electron to complete octet.
A heat lamp heats a pot of water from below, heat is
transferred throughout the water in the pot, and a person puts
their hand into the water to warm it. Which of the following
types of heat transfer are occurring in this scenario?
a Conduction
b Radiation
C Convection
d All of the above
Answer:
i think it is D. All of the above
but i will check to see if it's right
Answer:
D all of the above
Explanation:
I got it right on my test
What is the force needed to accelerate a 25 kg object at 3 m/s²? Formula ( F = m x a)
Answer:
75n
Explanation:
Answer:
I think it is A sorry if wrong
Explanation:
When a sample of gas is heated, its thermal energy a. increases b. decreases c. remains the same
Answer:
A) increases
Explanation:
The two images show side views of ocean waves. How are the two sets of waves different?
Answer:
they both move at a different force... believe I'm right
Explanation:
Answer:
The moon
Explanation:
Force? I think
Identify each molecule below as either a polar molecule or a nonpolar molecule. Explain your reasoing.
Oxygen Carbon dioxide
Answer:
Why then is carbon dioxide a nonpolar molecule while water is a polar molecule? Carbon dioxide is a nonpolar molecule because its atoms equally share the electrons. Water is polar because its atoms share the electrons unequally.
Explanation:
Oxygen and Carbon dioxide molecules are non polar.
What is Non-polarity?Non-polarity is defined as molecules in which the bonds are equal. This is
as a result of the electrons being shared equally.
In the case of Oxygen molecules, the electrons are equally distributed
between the two oxygen atoms which is a feature of a non polar
substance.
Carbon dioxide have dipoles which cancel each other out thereby
resulting in an equal distribution of electrons.
Read more about Non-polarity here https://brainly.com/question/545359
For the following questions protons are blue and neutrons are red
True or False: A charged object has a surplus or deficiency of electrons
Answer:
true I believe
Explanation: so sorry if this is wrong
Your dog is dragging you with a force of 100N at an acceleration of 4m/s2 what is your mass?
Answer:
25kg
Explanation:
F=ma
Can someone help me with this question please? I don’t understand molarity
Answer:
4.7L
Explanation:
Question 7 of 10
What is the correct electron configuration of phosphorus (P)?
A. 1922s22p%3s 3p
B. 1922s²2p3s 3p4
c. 1s22s22p6206
O D. 1s 2s22p%3s 3p3
SUBMIT
Answer:
1s2 2s2 2p6 3s2 3p3
Explanation:
The correct electron configuration of Phosphorus (P) :
1s², 2s², 2p⁶, 3s², 3p³ or [Ne] 3s²3p³
Further explanationGiven
Phosphorus (P) element
Required
The correct electron configuration
Solution
The electron configuration of an element is primarily based on the number of electrons
Phosphorus (symbol P) has the atomic number 15
The atomic number itself shows the number of electrons and the number of protons of an atom.
atomic number = number of electrons = number of protons in neutral atoms
So that the number of electrons from Phosphorus = 15
Its electron configuration :
1s², 2s², 2p⁶, 3s², 3p³ or [Ne] 3s²3p³
Which energy sublevel occurs out of place because of its lower energy? A. 1p B. 4s C. 2s D. 3d
Answer:
When arranged in order of increasing energy, the 2s energy sublevel is out of place.
Note: 1p energy sublevel does not exist in the first shell, as there is only the 1s orbital, and this shell can have a maximum of only 2 electrons.
Explanation:
The arrangement of electrons in orbits or shells around the nucleus of an atom is known as the electronic configuration of the atom. Some principles and rules guide electron-filling in atoms; one of which is the Aufbau principle.
According to Aufbau principle, electrons are fed into shells of lower energy levels before filling up of higher energy shells.
The energy levels of of electron orbitals arranged in the order of increasing energy level is given below:
1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, ..., 7p
Therefore, during electron filling, the 2s orbital is filled first before the 4s orbital because it is at a lower energy level.
Answer:
The answer is B. 4s
Explanation:
Educere
Juan and Jose are having an argument about their science book. Juan says that since the book is sitting still, there are no forces acting upon it. Jose says there are forces acting upon the book. Who is correct? Explain why.
Answer:
Jose is right
Explanation:
As the book is sitting still on the table, it is being acted upon by two forces of equal magnitude and opposite direction. Theses are;
i) The weight of the book
ii) The normal reaction on the book
The weight of the book acts downwards while the normal reaction acts upwards. These two forces exactly counterbalance each other hence the book sits still on the table.
PLEASE HELP QUICKLY! SERIOUS ANSWER PLEASE
Suppose you are reading a scientific article and want to know what the author’s independent and dependent variables were. How you can learn this by looking at the graphs in the report?
QUESTION 1:
A.If the graphs are in the forms of x, y scatter graphs, then the independent variable will be graphed along the x-axis, and the dependent variable will be graphed along the y-axis.
B. It is only possible to determine the independent and dependent variables from a graph if they are labeled as the independent and dependent variable.
C. If the graphs are in the forms of x, y scatter graphs, then the independent variable will be graphed along the y-axis, and the dependent variable will be graphed along the x-axis.
D. It is not possible to determine the independent and dependent variables from a graph.
QUESTION 2:
What are the three factors that contribute to water scarcity?
A.El niño, hurricanes, and ocean drought.
B. Climate change, overuse of groundwater, and water pollution.
C. Hurricanes, overuse of groundwater, and water pollution.
D. Climate change, ocean droughts, and water pollution.
QUESTION 3:
Brenda is telling a classmate that we really don’t need to worry about droughts because the supply of water on Earth is constant. Explain to Brenda and her classmate why droughts are a real concern.
A. The Earth’s water supply is not constant. When a drought occurs, the water from one area is gone forever. It is difficult for the water to be replenished in an area after a drought occurs.
B. The Earth’s water supply is fixed, so once it leaves an area, it tends to not go back to that area. It is possible for an area with a drought to never have water return.
C. The Earth’s water supply is fixed, but water changes locations and states constantly, so the amount of water in any given reservoir is not fixed. It is possible for a reservoir of useable water to run so low in volume that it can’t supply the area around it with the amount that is needed.
D.The Earth’s water supply is fixed, so once it leaves an area, it tends to not go back to that area. The areas that experience droughts are only areas where people do not live. It is only a concern for the plants and animals.
Answer:
Q1: A
Q2: B
Explanation:
Q1: the independent variable will always go on the x axis and the dependent will always go on the y-axis, so the answer is A.
Q2: it's not a, it's not d (ocean droughts aren't a thing that I'm aware of), and hurricanes don't make water scarce, so I would go with B.
The branch of science which deals with chemicals and bonds is called chemistry.
The correct answer to the question is A, B and A
In the question, there are 3 multiple choice questions on the water security topic.
The answer to the first question is A because the information of the graphs depends on the variable and the invariable factors.
The answer to the second question is B because the water level depends on give climate change, and water pollution, These two factors are majorly given information about the water level.
The answer to the third question is A because the amount of water on the earth is not constant and change according to the requirement.
Hence, the correct answer to the question is A, B, and A.
For more information, refer to the link:-
https://brainly.com/question/12985618
Which of the following contains the most atoms?
Select one:
a. 2.9.0122 g Be
b. 39.098gk
c. 24.305 g Mg
d. 21.62gb
Answer:
b
Explanation:
Use the periodic table
If the volume of 1.00 mole of gas is tripled, what will happen to the pressure, if the temperature remains constant
Answer:
The new pressure becomes one third of the initial pressure.
Explanation:
The relation between pressure and volume at constant temperature is given by :
[tex]P\propto \dfrac{1}{V}\\\\P=\dfrac{1}{V}[/tex]
Let new pressure and volume be P' and V' respectively.
V'=3V (given)
So,
[tex]P'=\dfrac{1}{V'}\\\\=\dfrac{1}{3V}\\\\=\dfrac{1}{3}\times \dfrac{1}{V}\\\\P'=\dfrac{1}{3}\times P[/tex]
Hence, new pressure becomes one third of the initial pressure.
An atom of element Be has four protons, four electrons, and five neutrons.
Which element below could be an isotope of this atom?
Answer:
b i took the edge test
Explanation:
Which of the following is an example of convection?
A. a hot oven warming the air around it
B. the rays of sun warming the earth
C. hot air rising and cooler air failing
Answer:
C. hot air rising and cooler air failing.Explanation:
Please mark my answer as a brainliest. That is the correct answer. ❤❤❤❤Jack claims that two 1.0 M solutions will always have a higher reaction rate
than two 0.5 M solutions of the same reactants. Which statement tells
whether Jack is right and gives a correct explanation?
A. He is not right, because there will be more successful collisions
between reactants in the 0.5 M solutions.
B. He is right, because there will be more successful collisions
between reactants in the 1.0 M solutions.
C. He is right, because the 0.5 M solutions give the molecules more
space to move more quickly.
D. He is not right, because the 0.5 M solutions give the molecules
more room to move around and align themselves well for
collisions.
Answer:
Hi i got , B. He is right, because there will be more successful collisions between reactants in the 1.0 M solutions.
Explanation: Hope it helps !!
The statement that gives correct explanation is:
B. He is right, because there will be more successful collisions between reactants in the 1.0 M solutions.
Relationship between collisions and concentration:With an expansion in the centralization of any responding substance, the opportunities for crashes between atoms are expanded on the grounds that there are more particles per unit of volume.
As the concentration increases, the collisions between the molecules increases. The solution having 1.0 M concentration will have more collisions due to the increase in the concentration as compared to the solution having 0.5 M.
Thus, option B is correct.
Find more information about Collisions here:
brainly.com/question/7694106
I got told if i got a lighter lit it and put it on my self that i should eat a cookie an watch :D should i do it :3
Does warm air have high pressure or low pressure? How do you know?
Answer:
Since warm air is less dense and creates less air pressure, it will rise; cold air is denser and creates greater air pressure, and so it will sink. When warm air rises, cooler air will often move in to replace it, so wind often moves from areas where it's colder to areas where it's warmer.
Acceleration due to gravity on the moon is greater / less than acceleration due to gravity on Earth. The mass of an object on the moon is less than / greater than / the same as it is on Earth. Using the equation F = ma to calculate weight, the mass of an object is multiplied / divided by acceleration due to gravity. So, the weight of an object on the moon is greater / less than the weight of the same object on Earth.
How many Sodium (Na) atoms are in 6NaCl?
6 Sodium (Na) atoms are in 6NaCl.
Sodium chloride, NaCl, is composed of two elements: sodium (or Na) and chlorine (or Cl). A molecule of sodium chloride, NaCl, is made up of one sodium atom and one chlorine atom. As a result, each NaCl molecule has two atoms.
[tex]1\ molecule\ of\ NaCl=2\ atoms\\\\6\ molecule\ of\ NaCl=12\ atoms\\\\[/tex]
So, 6 NaCl contains 12 atoms that is 6 Cl, and 6 sodium.
Hence, the answer is 6.
To know more about:-
brainly.com/question/21726696
5.Are pure solids included in equilibrium expressions? Explain your answer.
Answer:
Pure solids or liquids are excluded from the equilibrium expression because their effective concentrations stay constant throughout the reaction. The concentration of a pure liquid or solid equals its density divided by its molar mass.
Explanation:
Hope this helps!!!
NEED THIS NEED TO GET OFF ITS MY BRO BDAY NEED IT FOR A BIG GRADE NEed it SO BAD
Answer:
he is right, top right
Explanation:
What integer represents the total charge of 4 protons
Answer:
4
Explanation:
+ 4 is the integer that represents the total charge of 4 protons because proton has a positive charge is known as cation so plus sign should be added to number of protons while on the other hand, for 4 electrons we -4 integer because electron has negative charge is known as anion so that's why plus sign is added with proton and negative sign is added to electron.
what is the type of hybridization of each carbon in prop - 2- one ?
Explanation:
IUPAC name: porpane-2-one Other name: AcetoneFunctional group: KetoneLongest C-chain: 3position of Functional group: 2nd-Cmolecular formula: C₃H₆Omolecular mass: 58 g/molsolubility: soluble in water (H-bond) boiling point: High as compared to haloalkanes Structure: O||
CH₃–C–CH₃
11. Hybridisation:
1-C: sp³2-C: sp²3-C: sp³What are the differences between ionic and covalent compounds?
Answer And Explanation:
An ionic bond essentially donates an electron to the other atom participating in the bond, while electrons in a covalent bond are shared equally between the atoms.
