0.32 moles of oxygen gas has a temperature of 27°C and pressure of 2 atm in a closed container. What is the volume?
Answer:
3.9 L
First convert temperature to Kelvin
then use the ideal gas law
use algebra to solve for V
Since your solving for volume, your answer should be in Liters.
Do all mutations have the same affect on a cells dna
Answer:
no, some mutations can create cancers while others can create other infections
Explanation:
Covalent bonds form due to the attraction between _____.
a positive atomic nucleus and a negative one
the nuclei of two atoms
the electrons of two atoms
the electrons of one atom and the nucleus of another
Answer:
the electron of one atom and the nucleus of another
Solid potassium chloride is obtained by the reaction of solid potassium and chlorine gas.
Write a balanced chemical equation for this reaction.
Answer:
2 K(s) + Cl₂ (g) --> 2 KCl(s)
Explanation:
Potassium will just be K
Chlorine gas is part of BrIClHOF, which are diatomic gasses. So Cl₂
Looking at the periodic table potassium K has an ion charge of +1 and chlorine Cl has an ion charge of -1, so in a balanced compound they will be written as KCl
Balancing the amounts of each will lead to 2 K(s) + Cl₂ (g) --> 2 KCl(s)
What would happen to a plant that did not perform cellular respiration in the light?
Answer:
Explanation:
Cellular respiration does not depend on light... Some plants may go into a form of hibernation during winter when the amount of light during the day is less. The reduction of plant growth and activity would reduce the need for the energy produced by cellular respiration.
Sedimentary
Weathering
erosion, transport
deposition
Heat and/or
pressure
Igneous
Metamorphic
The
Rock
Cycle
Intrusion or
eruption
Burial and
extreme heat
Magma
Look at the diagram above.
Which sentence BEST describes a process in the rock cycle?
Igneous rocks can become metamorphic and sedimentary rocks.
Metamorphic rocks can form by the weathering process,
Volcanoes can deposit sedimentary rock to form mountains.
O Sedimentary rocks can melt to become metamorphic rocks.
Answer:
I am confident that it is the last answer but if you can find a more verified answer I would go for that.
"Don't use such phrases here, not cool! It hurts our feelings :( "
IS THE COMMENT EVERY DANG TIME YOU TRY TO TYPE ANYTHING TO POST! anyone else having this problem?
Answer:
ye, i always have that problem. my stuff gets deleted too :'((
Humans become part of the carbon cycle when they
A. breathe in carbon dioxide,
B. release carbon as a waste product,
C. produce new carbon compounds in their cells,
Answer:
Human activities have a tremendous impact on the carbon cycle
Explanation:
Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. ... The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels.
what is atomic number of sodium
Answer:
Explanation:
Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is ²³Na. The free metal does not occur in nature, and must be prepared from compounds.
Answer: Atomic number for sodium is 11
Symbol: Na
Melting point: 207.90°F (97.72°C)
The electronic configuration of sodium is 2, 8, 1
How to convert celcius to Kelvin?
Answer:
temperature
Explanation:
What is the missing word. Please Help Me. Thank you!!
Before adding to the cell, aluminium oxide is mixed with _____________ to lower its melting point.
Lithium nitride consists of two ions chemically bonded together. What are the charges of each ion?
O A. Li^3- and N^+
O B. Li^+ and N^3-
O C. Li^3+ and N^-
O D. L^i- and N^3+
Answer:he’s right
Explanation:
Lithium nitride is the only alkali metal nitride which has the chemical formula Li₃N and it reacts with water to produce ammonia and lithium hydroxide. The charges of each ion are +1 and -3. The correct option is B.
What are cations and anions?The ions which are positively charged are called the cations whereas the ions which are negatively charged are called the anions. The combination of the cations and anions results in the formation of an ionic compound.
In lithium nitride, the cation is Li⁺ and the anion is N³⁻. The charge on the nitride ion is -3 and that of the lithium ion is +1. The total number of electrons present in the molecule is 10. Because the number of protons is 7 and 3 electrons were added from -3 on the nitride ion.
Thus the correct option is B.
To know more about Lithium nitride, visit;
https://brainly.com/question/29045572
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What is the pOH if the [OH-]= 0.165 M? What is the pH of this basic solution? *Please round your answer(s) to the appropriate number of significant figures. Your answer can be in standard notation or i letter "e" in place of x10.* 1 N
Answer:
78
Explanation:
Answer:
The OH would be .7825 and the basic solution is a strong base.
Explanation:
What you would do is -log(0.165) in your calculator which would give you 0.7825160065 as an answer. Im not sure what the significant figure is so I will not be rounding to that, but that is your answer for the first part.
The second part: because your pOH is a .7825, this would be consiered a strong base in the pOH because it is closer to 1 which is your base.
Help! Please and thank you
Please help me, I am confused
Answer:
B
Explanation:
Ionic compound can conduct electricity
HELP PLEASE❗️❗️‼️
An increase in temperature is an increase in.... ( there are two correct answers)
A.) Water molecules
B.) The melting point
C.) pressure
D.) Fun
What holds more salt warm or cold water?
Can anyone help me with this algebraic expression
(4a+3b)² (3a-4b)²
Answer:
=144a⁴−168a³b−239a²b²+168ab³+144b⁴
Explanation:
=144a⁴−168a³b−239a²b²+168ab³+144b⁴
Answer:
[tex](4a + 3b)(4a + 3b)(3a - 4b)(3a - 4b) \\ {16a}^{2} + 12ab + {9b}^{2} + 12ab + {9a}^{2} + 12ab + 12ab + {16b}^{2} \\ {16a}^{2} + {9a}^{2} + {9b}^{2} + {16b}^{2} + 12ab + 12ab + 12ab + 12ab \\ {25a}^{2} + {25b}^{2} + 48ab[/tex]
PLEASE HELP ME.!
This illustrates which stage of meiosis?
A) Anaphase II
B) Metaphase II
C) Prophase II
D) Telophase II
Answer:
Anaphase II
Explanation:
what fault block that is located below the fault
Answer:
it is called the foot block13. If a chemist has 12.3 moles of N H 03, what is the mass of the sample?
Answer:
209.4831 g
Explanation:
number of moles × molar mass = mass of substance in g
12.3 × ( 14.0067 + 1.00484 × 3 ) = 209.4831 g
Molar Volume of a gas at STP=22.4 L Example 3: Determine the volume of Carbon dioxide created when 15.0 grams of NaHCO3 are decomposed into water, Sodium carbonate, and Carbon dioxide at STP?
Answer:
20009 is answer is right 1345678899444
Explanation:
thhjbfthvcdthvctyhgffdy
gvhjk ghkde ghjcddxxb hhj hhgddxb ggjbcxdss ggbbsrtyg fy gbsdgh
For a theoretical yield of 5.52 g and percent
yield of 51.7877%, calculate the actual vield
for a chemical reaction.
Answer in units of g.
Answer:
2.85868104g
Explanation:
Actual yield
Theoretical yield x 100 = 51.7877%
So, do the inverse and you get 2.85868104g
Which statement does NOT describe a relationship shown in the food web?
A Elk are prey for mountain lions.
B Mice are herbivores that consume grasses and are preyed on by snakes.
COwls prey on rabbits and frogs.
Rabbits consume shrubs and are parasites of grasses.
D
PLEASE HELP
135 g of aluminum initially at 400.°C is added to an unknown mass of water (initially at 25°C). When thermal equilibrium is reached, the system has a temperature of 80.°C. Find the mass of water. Note c = .89 J/g°C for Al
Answer:
981.82g or 0.982 kg
Explanation:
I believe this is Physics, but okay!
We have to use the Specific Heat Capacity formula here.
Heat energy = mass x specific heat capacity x change in temperature
mass = Heat energy/(specific heat capacity x change in temperature)
Heat energy is measured in Joules so we need to find out how to do this.
To find an amount in Joules, we are given 135g and 0.89J/g°C.
135g x 400°C = 54000 to give us g°C
54000 x 0.89 = 48060 By multiplying these two values, we get given 48060J.
This is because: g°C/1 x J/g°C = Joules on it's own
mass = (48060)/[0.89 x (80 - 25)]
mass = 981.82g
What element is steel mainly composed of?
A. Iron
B. Carbon
C. Manganese
D. Silver
El acero esta compuesto por Hierro y Carbono
Please help!!! What is electrolysis?
Explanation:
plzz tell me the ans even i also want to know plzzzz someone say ans
Answer:
electrolysis is a procedure that uses direct electric current to achieve an otherwise non-spontaneous chemical reaction and is important in the separation of elements from naturally occurring
How much H2O is produced when 40000 g of
C2H, burns completely?
Answer in units of g.
Answer:
1200g H20.
Explanation:
Write out the balanced equation... when an organic compound is burned, like C2H2, it is burned in oxygen (O2) and produces Water and Carbon Dioxide (CO2)
so 2C2H2 + 5O2 = 2H2O + 4CO2
now that you have a balanced equation just convert to moles and solve
2000g C2H2 * 1mol C2H2 / 30gC2H2 * 2mol H2O/2mol C2H2 * 18gH2O/1molH20 = 1200g H20.
The cells of all organisms must produce energy in order for the cell to survive and function. The diagrams below show
different parts of an animal cell and a plant cell.
In which organelle is energy produced in both plant and animal cells?
O Ribosomes
Nucleus
Chloroplast
O Mitochondria
Answer:
Mitochondria Is produced by both animal and plant cells
Explanation:
PLS HELP URGENT
Electron dot diagrams
Use your periodic table to write the electron dot diagrams for the following atoms.
1. Calcium (Ca)
2. Polonium (Po)
3. Moscovium (Mc)
4. Boron (B)
5. Fluorine (F)