What is the total volume of solution that was dispensed from this burette?
A. 32.3 ml
B. 32.9 ml
C. 0.6 ml
D. 32.6 ml
E. 65.2 ml
Answers
Answer:
it will a i did the quiz got it all right
Explanation:
Related Questions
water is at 0 degrees celsius if we continue to remove energy from the water what phase changes would occur
Answers
Answer:
Solid/freezing
Explanation:
Solid has the least energy of all of the phase changes and the more energy is lost the colder its gets then water turns into a solid called ice hope i helped!
A nuclear power plant is used to generate:
steam
solar energy
heat energy
electricity
Answers
Answer:
Anuclear power plant is used to generate electricity
Answer:
Anuclear power plant is used to generate electricity
thank me later
Explanation:
ery active on
riodic table
2
c table
Which one is more reactive out of Fluorine and Chlorine? Why?
A small portion of Modern periodic table (Group 1) is given. Givet
hydrogen along with metals in this
group.
3. Elements of
group 1, 2, 13 are more reactive as we go down in the
table, why?
Modern periodic table is less defective than Mendeleev's periodic
to justify it.
Group-C
eley's per
Mention any three characteristics of Mendeleev's periodic table.
Write down the three drawbacks of Mendeleev's periodic table.
Write down three characteristics of Modern periodic table.
Which group of the periodic table does the element ‘A’ belong to
reactive in between 'B' and 'C'? Give reason.
Element
Electronic configuration
А
2,8,5
B
2,3
C С
2,8,3
Identify the groups of the alkali metals, metalloids and inert g
8
What is the valency of chlorine and neon? Why?
2
13
14
15
16
17
Answers
Elements are more reactive as you go down the periodic table because ionization energy decreases down a group which means they can lose electrons more easily, making them more reactive.
The modern periodic table is arranged by atomic number rather than atomic mass, and many discoveries of new elements have been made that make a more complete table.
The vertical columns and horizontal rows in Mendeleev’s table are called groups and periods respectively. There are seven periods and eight groups. Elements with the same properties are in the same group and all elements were ordered by atomic mass.
Three drawbacks of Mendeleev’s table are: it’s arranged by atomic mass rather than atomic number. Isotopes violate Mendeleev’s periodic law. Mendeleev could not figure out where to place hydrogen.
Modern periodic table is arranged by atomic number, it has 7 periods and 18 groups, and is divided into 4 blocks (s-, p-, d-, and f-)
Which of the following birds is not a second-order prairie consumer?
owl
falcon
eagle
pheasant
Answers
58. What is the temperature if 30.1 g of N, in a 1.00-L container is at a pressure of 25.2 atm?
DUE TONIGHT. LINKS DONT WORK SO PLS SHOW WORK. THANK YOU SO MUCH
Answers
Answer:
14°C
Explanation:
In order to use the ideal gas law, you need the number of moles of N2 present.
30.1 g x (mol / 28.02 g) = 1.07 mol N2
Use the ideal gas law: PV = nRT
Now isolate for T(temperature) and plug in your other values:
T = PV / nR
T = (25.2 atm)(1.00 L) / (1.07 mol)(0.08206)
T = 287 K
T(°C) = 287 K - 273 K = 14°C
Therefore, the temperature is 14°C
what are two places that producers can get energy?
Answers
Answer:
The Food Chain: The answer has to do with trophic levels. As you probably know, the organisms at the base of the food chain are photosynthetic; plants on land and phytoplankton (algae) in the oceans. These organisms are called the producers, and they get their energy directly from sunlight and inorganic nutrients.
Explanation:
Brainliest?
I'll give 50 pts and brainliest
Briefly explain the different types of mining and the processes!!
Answers
Answer:
Response is below
Explanation:
The different types of mining are underground, surface, placer, and in-situ. Underground mining uses various materials to excavate resources from beneath the surface of the Earth. Surface mining is a category of mining that in which soil and rock overlying the mineral deposit are removed. Placer mining is the mining of stream bed deposits for minerals. In-situ mining is a mining process used to recover minerals such as copper and uranium through boreholes drilled into a deposit.
How many moles of oxygen are required to react with 12 moles of FeS2?
4FeS2 + 11O2 → 2Fe2O3 + 8SO2
Answers
A certain element has only two naturally occurring isotopes: one with 18 neutrons and the other with 20 neutrons. The element forms I- charged ions when in ionic compounds. Predict the identity of the element. What number of electrons does the charged ion have?
Answers
Answer:
[Cl-18]⁻ & [Cl-20]⁻
Explanation:
By definition isotopes are elements with the same number of protons by different number of neutrons. Elements X-18 & X-20 have 17 protons and represent Chlorine isotopes Cl-18 & Cl-20 each with 17 protons and 18 electrons to give the isotopes a -1 oxidation state. Both isotope of chlorine have 7 electron in its valence shell and 10 electrons in its core structure. Gaining 1 electron fills the valence octet and establishes a -1 oxidation state.
When the wave passes through the medium
Answers
Answer: hewo, there! your answer is Below
A single disturbance passing through a medium is called a pulse.
Explanation:
When the disturbances are repeated in a periodic manner, the pulses generate a continuous wave. Longitudinal waves (also called compression waves – a slinky pushed and pulled) – moves parallel (same direction) to the wave motion.
Hope this helps !!
Have a amazing day !!!!
Answer:
When the energy of a wave passes through the medium, particles of the medium move. The more energy the wave has, the farther the particles of the medium move. The distance the particles move is measured by the wave's amplitude.
Explanation:
A single disturbance passing through a medium is called a pulse. When the disturbances are repeated in a periodic manner, the pulses generate a continuous wave. Longitudinal waves (also called compression waves – a slinky pushed and pulled) – moves parallel (same direction) to the wave motion.
Using dimensional analysis, convert 523.7 cm into feet. (1 in= 2.54 cm; 12 in=1 ft)
-15962
-2471
-17.18
-43.64
Answers
Answer:
17.18
Explanation:
(1 in = 2.54 cm; 12 in = 1 ft)
Formula:- Divide the length value by 30.48
523.7 ÷ 30.48 = 17.181
Thus, The answer is 17.181
-TheUnknownScientist
Answer:
17.18
Explanation:
I hope its helpful......
What about 50 g of water?
I need help what this
Answers
Answer:
3.38 Tablespoons
10.14 Teaspoons
0.21 U.S. Cups
0.18 Imperial Cups
0.20 Metric Cups
50.00 Milliliters
Explanation:
HOW WILL GENETIC MODIFICATION AFFECT OUR SOCIETY AND ENVIRONMENT?
Answers
Answer:
“GMOs have helped farmers reduce their environmental footprint by allowing them to use fewer inputs and enabling a shift to reduced tillage. These practices have led to less time spent on a tractor, less fuel used and fewer emissions.
Hope this helps!!!
the element chlorine is a gas. it's formula is cl2 . how many different masses of the cl2 molecule would you expect to find in a sample of chlorine gas ? explain your answer
Answers
Answer:
the answer is 3.33⋅1023 molecules of Cl2. Note that 6.022⋅1023 is also known as Avogadro's number, and it can be referred to as the number of molecules in one mole of that substance. Also, I calculated 70.9 because 35.45 g/mol (the mass of one Chlorine atom) times 2 is 70.9 g/mol (Cl2 has two Chlorine atoms).
Explanation:
HELP!
NaCl is made from 1 Na and 1 Cl. If I have 45.978 grams of Na, how many grams of NaCl can I make? (You will have to convert to moles of Na first!)
explain answer
Answers
Answer:
116.88 g
Explanation:
Step 1: Write the balanced equation for the synthesis of NaCl
Na + 1/2 Cl₂ ⇒ NaCl
Step 2: Calculate the moles corresponding to 45.978 g of Na
The molar mass of Na is 22.990 g/mol.
45.978 g × 1 mol/22.990 g = 1.9999 mol
Step 3: Calculate the number of moles of NaCl formed from 1.9999 moles of Na
The molar ratio of Na to NaCl is 1:1. The moles of NaCl formed are 1/1 × 1.9999 mol = 1.9999 mol.
Step 4: Calculate the mass corresponding to 1.9999 moles of NaCl
The molar mass of NaCl is 58.443 g/mol.
1.9999 mol × 58.443 g/mol = 116.88 g
3. Two liquids are being studied to find which one
evaporates more quickly. Liquid A boils at 50°C and
Liquid B boils at 25°C. Which liquid do you think
evaporates faster?
A.Liquid A
B.Liquid B
C.Both will evaporate at the same rate
D.Neither evaporate at all
Answers
Answer: D
Explanation:
Because at temerature at 25 and 50 is
to low for a compound to evaporate as gas because the bioling point is 100.
Answer: B
Explanation: Evaporation rate is influenced by the liquid's boiling temperature. A lower boilng point means that converting the liquid to a gas takes less energy because higher temperatures mean higher energy content. Assuming that this relationship holds at room temperature and that all other factors are equal, you should expect that Liquid B will evaporate faster.
PLEASE HELP
Find the kinetic energy of the horse using KE=1/2mv^2.
Answers
Answer:
78878
Explanation:
Balance the following chemical equation by providing the correct coefficients:
[ ]N2 + [ ]H2 -> [ ]NH3
Nitrogen + hydrogen produces ammonia (NH3)
Answers
Answer:
1 N2 + 3 H2 --> 2 NH3 :))) !!
What does Aluminum and Magnesium oxide create
Answers
Answer: MgAl2O4 or Spinel (gemstone)
Explanation:
HELPP asap I’ll mark you as brainlister
Answers
Answer: the answer is D the last one.
Explanation:
hope this helps! have a good day! :) ^-^
Pls help me I don’t know what to dooooo
Answers
The solute here is NaCl, of which we have 46.5 g. To calculate the molarity of an NaCl solution, we need to know the number of moles of NaCl. To convert from grams to moles, we divide the mass by the molar mass of NaCl. The molar mass of NaCl is the sum of the atomic masses of Na and Cl: 23 amu + 35 amu = 58 amu. For our purposes, we can regard amu as equivalent to grams/mole.
(46.5 g)/(58 g/mol) = 0.8017 moles NaCl.
Now that we know both the number of moles of our NaCl solute and the volume of the solution, we can calculate the molarity:
(0.8017 moles NaCl)/(2.2 L) = 0.364 M.
What is the molarity of 42.1 g of AgNO3 dissolved in 1.75 L of solution?
2.31 M
B 0.248 M
C 0.142 M
D 24.1 M
Answers
Is a animal searching for water a stimulus or response
Answers
Answer:
response I believe
Explanation:
i'm pretty sure it's a response cause it's the animal responding to needing water and being thirsty
hope this helps! :)
Pls help me and thank youuuu
Answers
How many grams of water, H 2 O , is given o when 62.1 g of propane, C 3 H 8 , burns?
Answers
Answer:
101.62 grams of water is given o when 62.1 g of propane burns.
Explanation:
Propane gas (C₃H₈) burns with oxygen gas and products carbon dioxide gas and liquid water. The balanced reaction is:
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O
By stoichiometry, the following amounts of moles of each compound participate in the reaction:
C₃H₈: 1 mole O₂: 5 moles CO₂: 3 moles H₂O: 4 molesBeing the molar mass of each compound:
C₃H₈: 44 g/mole O₂: 32 g/moleCO₂: 44 g/moleH₂O: 18 g/moleBy stoichiometry, the following mass quantities of each compound participate in the reaction:
C₃H₈: 1 mole* 44 g/mole= 44 grams O₂: 5 moles* 32 g/mole= 160 gramsCO₂: 3 moles* 44 g/mole= 132 gramsH₂O: 4 moles* 18 g/mole= 72 gramsThen you can apply the following rule of three: if by stoichiometry 44 grams of propane produces 72 grams of water, 62.1 grams of propane how much mass of water does it produce?
[tex]mass of water=\frac{62.1 grams of propane*72 grams of water}{44 grams of propane}[/tex]
mass of water= 101.62 grams
101.62 grams of water is given o when 62.1 g of propane burns.
Look at the picture below. What is the name of the copper salt?
Answers
Answer:
The reaction took place is-
Fe + CuSO4 → Fe(SO4) + Cu
the copper salt name is copper sulphate!
The statement describes the name of the copper salt is "copper sulphate."
What are salt?A salt is an ionic substance that is created when a positively charged ion bonds with a negatively charged ion.
The reaction occurred in the context of the image.
Fe + CuSO4(aq) → FeSO4(aq) + Cu(s)
A single displacement reaction is the sort of reaction. In this reaction, the highly reactive metal iron oxidises and creates ferrous sulphate by replacing the copper in copper sulphate by giving up two electrons.
Hence the correct answer is copper sulphate.
Learn more about salt here,
https://brainly.com/question/24893919
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Horticulture 100 POINTS Hurry
Which of the following is an example of an indirect expense?
A. corn oil
B. animal fodder
C. export commodity
D. snack foods
Answers
Answer:
B!
Explanation:
Answer:
i know im late but i just really want the points. the answer is b.
Explanation:
A pool float was filled with air to capacity in the middle of a hot day. The next morning the pool float looked different yet no gas escaped or entered the float. Describe what you think the float looked like in the morning and why it occurred.
Answers
Answer:
The pool float looked would have looked deflated the next morning.
Explanation:
When temperature decreases the volume decreases.
What is the best synonym for "alloy?"
A: nonmetal
B: mineral
C:blend
D:stone
Answers
The answer is c
Blend
Difference between electro positive and electronegative radical
Answers
Answer:
Here's your answerExplanation:
The key difference between electropositive and electronegative radicals is that electropositive radicals are radical compounds having the capacity to electrons and carry a positive charge whereas electronegative radicals are radical compounds having the capacity to gain electrons and carry a negative charge.
I hope it's helpful for you