Answer:
Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.
Explanation:
Answer:
Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.
Explanation: :)
what is the full name of the compund CuSO4?
Please can you help me? (✿◡‿◡)
CuSO4 is Copper Sulphate.
People mine zinc metal for use as an anticorrosive, skin protectant, and in electrical components. Zinc mining involves using chemicals to
remove the zinc from larger rocks. Demand for zinc increased over the past 35 years.
If the management of zinc mines stays the same, how will the increased demand for zinc most likely impact the environment?
O A. Global temperatures will rise because mining releases heat from Earth's Interior.
O B. Biodiversity will increase because mining speeds the release of Important minerals from rocks.
O C. The acidity of the surrounding soil and water will change because of the discharge of mine waste.
O D. Sea level will decrease substantially because the mining process requires substantial amounts of water
How do I know if hand soap is working properly and how are some methods I can test it?
Answer:
Part A) By seeing if your hands are clean and dont have germs
Part B) Dip your hands in mud and then wash your hands to see results
Explanation:
What is the definition of an integral membrane protein? a It is a protein that is found on the inside of the plasma membrane b It is a protein that is permanently embedded within the plasma membrane C It is a protein that helps give structure to the plasma membrane d It is a protein that is found on the outside of the plasma membrane
An integral membrane protein is a type of membrane protein that is permanently attached to the biological membrane.
ILL GIVE YOU BRAINLIEST <3
1) How many total atoms in the molecule: (NH4)2SO4
a) 15 b) 14 c) 12 d) 10
Answer:
Should be a 15 imo
Explanation:
N is one, 4H = 4, S 2 because of the 2 and O 8 because of the 4 and the 2 before the S.
2. You have 200g or a solution that contains 30g of hydrochloric acid (HCI),
what percentage of your solution is made up of HCI acid?
Answer:
the percentage of your solution that made up of HCI acid is 15%
Explanation:
The computation of the percentage of your solution that made up of HCI acid is given below:
Given that
There is 200g or a solution that have 0 g of hydrochloric acid (HCI)
Based on the above information
The percentage is
= 30g ÷ 200g
= 15%
Hence, the percentage of your solution that made up of HCI acid is 15%
using the law of conservation of energy explain three types of energy transformations that occur during a roller coaster ride from beginning to end
Answer:
energy a b c
Explanation:
Why do atoms bond?
a. Noble Gas Configuration b. Halogen Configuration c. Magnetic Configuration
Answer:
es la letra a)
Explanation:
síganme en insta
Which numbers are shown in the symbol for a radioactive nuclide?
A. the atomic number and the number of neutrons
B. the mass number and the number of neutrons
C. the atomic number and the mass number
D. the number of electrons and the number of protons
Answer:
The answer is C.
"The atomic number and mass number."
Explanation:
Got it right on Edge!
Have a good day!
The atomic number and the mass number are numbers shown in the symbol for a radioactive nuclide (Option C).
What is the atomic number?The atomic number is referred to the atomic charge that has a given nucleus, which is symbolized as Z.
A radioactive nuclide is a type of atom that has an excessive nuclear energy, thereby it can be very unstable.In conclusion, the atomic number and the mass number are numbers shown in the symbol for a radioactive nuclide (Option C).
Learn more on the atomic number here:
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i am not sure i am thinking A and C
Answer:
I think so too
Explanation:
formula compound that forms between sodium and chlorite ions?
Answer:
NaCl
Explanation:
Thus, for the compound between Na + and Cl −, we have the ionic formula NaCl (Figure 3.5 "NaCl = Table Salt").
Answer:
NaCl
Explanation:
Na has a 1+ charge while Cl 1- charge
Calculate the number of moles found in 88.02g of CO2
Answer:
2.00moles
Explanation:
mol=mass/mr
88.02/ [12+2(16)] = 2.00
Please help fast! I will give brainliest!
Answer:(c)
Explanation:
What are polyatomic ions and how are they formed?
Answer:
Polyatomic ions are covalently bonded groups of atoms with a positive or negative charge caused by the formation of an ionic bond with another ion. Compounds formed from such ion combinations are called polyatomic ionic compounds, but the polyatomic ion behaves as a single uni
Explanation:
What is the Molecular formula of lemon???
Explanation:
Answer:
[tex]C_{36}[/tex][tex]H_{32}[/tex][tex]Cl_{4}[/tex][tex]N_{6}[/tex][tex]O_{4}[/tex]
What is the air like in a tropical air mass?
Answer:
dense and humid
Explanation:
Suppose that your experimental value for the specific heat capacity of your
unknown is 0.37 J (g°C). How would you be able to positively determine which
of the metals in Table 3 is your unknown?
Answer:
The way you can determine which is the unknown metal is measuring for denstity, compare the results and that should give you the unknown metal you are trying to find.
Density is the unit volume occupied by a given mass of a material
Specific heat capacity is the required heat that raises a given mass of substance temperature by one degree
The unknown metal can be positively determined by comparing the known values of the specific heat capacities to the experimental valuesGiven that the likely metals are zinc and copper, the volume of water displaced in the calorimeter can be used differentiate between the two; 86.5 g of zinc displaces 2.743 cm³ more water than copperReasons:
The possible values in the table of values in the table for the question are;
[tex]\begin{array}{|l|c|c|}\mathbf{Metal}&\mathbf{Atomic \ Mass \ Unit}&\mathbf{Sprecific \ Heat \ Capacity}\\Zinc&65.4&0.38\\Titanum&47.9&0.52\\Tin&118.7&0.22\\Copper&63.5&0.38\\Barium&137.3&0.19\\Aluminum&27.0&0.90\end{array}\right][/tex]
Given that the experimental value for the specific heat capacity of your unknown is 0.37 J/(g·°C), to determine positively which metals in Table 3 is your unknown, we have;
The two metals with specific heat capacities close to 0.37 J/(g·°C) are copper and zincThe given difference between the two metals can be used to determine the unknown metal as follows;
Atomic mass unit of copper = 63.5 amu
Atomic mass unit of zinc = 65.4 amu
The given mass of the unknown metal rod is 86.5 g
The density of zinc is 7.133 g/cm³
The density of copper is 8.96 g/cm³
The volume of water displaced by the 86.5 g of the metal is therefore;
For zinc:
[tex]Volume = \dfrac{86.5}{7.133} \approx 12.127[/tex]
The volume of water displaced if the unknown metal is a zinc rod is 12.127 cm³
For copper, we have:
[tex]Volume = \dfrac{86.5}{8.96} \approx 9.654[/tex]
A metal sample of zinc displaces (12.127 - 9.654 = 2.743) 2.743 cm³ more water than copper, in the calorimeter
Therefore;
The volume of water displaced in the calorimeter will be 12.127 cm³ if the metal is zinc while 9.654 cm³ will be displaced if the metal is copper
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Question 1 (4 points)
You are given a Stoichiometry word problem with a chemical reaction with reactants and products given below:
2A + B2 --> 2AB
You must find the mass of AB formed with 4 moles of B2.
Q: Which of the following information do you need to have in the correct order to solve the problem?
1. to cancel out moles of B2, you must multiply with a factor that have moles of B2 at the denominator and
moles of AB in the numerator
2. Find mole ratios of B2 and AB to obtain conversion factors
3. to cancel moles of AB, you must multiply with a factor that has 1 mole of AB in the denominator and molar
mass of AB on the numerator.
4. Start solving with the given information (moles of B2) first
5. Balance the equation
Can someone help me answer this ASAP !!!
Answer: Chlorine I think
Explanation:
Chlorine is added to the water to kill germs. When it is added to a swimming pool, it forms a weak acid called hypochlorous acid that kills bacteria like salmonella and E.
Answer: Chlorine!
Explanation:
When it is added to a swimming pool, it forms a weak acid called hypochlorous acid that kills bacteria like salmonella and E. coli, as well as germs that cause viruses such as diarrhea and swimmer's ear.
How many GRAMS of H2 would you need to produce 2.5 mol NH3?
A student in a chemistry laboratory has access to two acid solutions. The first one is 20% acid and the second solution is 45% acid.(The percentages are by volume). How many millilitres of each solution should the student mix together to obtain 100ml of a 30% acid solution?
Volume of each solution : 60 ml 20% and 40 ml 45%
Further explanationGiven
20% and 45% acid
100 ml of 30% acid
Required
Volume of each solution
Solution
Molarity from 2 solutions :
Vm Mm = V₁. M₁ + V₂. M₂
m = mixed solution
V = volume
M = molarity
V₁ = x ml
V₂ = (100 - x) ml
Input the value :
100 . 0.3 = x . 0.2 + (100-x) . 0.45
30 = 0.2x+45-0.45x
0.25x=15
x= 60 ml
V₁ = 60 ml
V₂ = 100 - 60 = 40 ml
For the preparation of the 30% 100 ml acid solution, 40 ml 45% solution has been mixed with 60 ml 20% acid solution.
To prepare the solution with the concentrated solution:
MV = M1V1 + M2V2
The M has been the concentration of the resulted solution, and V has been the volume of the resulting solution.
M1 and M2 and V1 and V2 have been the concentration and volume of the given solution.
0.30 × 100 ml = 0.20 × x + 0.45 × (100 - x)
30 = 0.20x + 45 - 0.45x
0.45x - 0.20x = 45 - 30
0.25x = 15
x = 60 ml
The volume of 20% solution has been x = 60 ml
The volume of 45% solution has been 100 - x = 40 ml.
For the preparation of the 30% 100 ml acid solution, 40ml 45% solution has been mixed with 60ml 20% acid solution.
For more information about the acid preparation, refer to the link:
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How would an increase in temperature affect the rate of radioactive decay?
Answer:
Temperature does not affect the radioactive decay
Explanation:
because Temperature has no factor in radioactivity
Good Luck
Select all the correct answers.
Joshua dissolved sugar in water to create a sugar solution. His friend Ray tells him it’s a compound, but Joshua corrects him. Which words actually describe the sugar solution?
gas
liquid
mixture
solid
Answer:
liquid and mixure
Can someone help me with these?
How does the FDA regulate the animals?
Compare cloned animals to genetically engineered animals using recombinant DNA.
What is AquAdvantage Salmon? What is its purpose?
What is an Oxitec mosquito? What is its purpose?
Identify a minimum of three benefits and risks associated with genetically engineered animals.
What type of ethical issues are involved with the genetic engineering of animals?
Check answer here hope it helps
What does evaporation do to salinity? Question 2 options: water molecules (H20) absorb energy where there are higher levels of evaporation, the water has greater salinity warmer water molecules move farther apart it does not impact salinity
Answer:
the water has greater salinity
Explanation:
The term "Salinity" refers to the amount of salt present in water. Recall that the amount of solute increases when the volume of solution decreases. This is because the amount of substance present in a solution depends on the volume of the solution.
Hence, as water evaporates, the volume of the solution decreases and the salinity (amount of salt present) increases.
Answer:
the water has greater salinity
Explanation:
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find the one out of place
what is the ratio of calcium to fluorine atoms when calcium fluoride makes a crystal
Answer:
Calcium is a Group 2 metal. Fluorine is a Group 17 gas. Towards the right of the Periodic table, ELEMENTS tend to get smaller as the increased nuclear charge exerts a greater attractive force on the valence electrons. The small fluorine atom tends to attract electrons, and is energetically most stable when it forms the F − ion. On the other hand, calcium is a large Group 2 metal. It has 2 valence electrons, which are in the valence (the outermost) shell, and nuclear charge is somewhat diminished for these electrons. Calcium tends to be oxidized (to lose electrons) to form C a 2 + ions. So if calcium and fluorine want to make music together (or at least form a chemical bond), then a formula of (C a F 2) is entirely reasonable (why? because this combination is electrically neutral!). And in fact in nature the mineral fluorite ( C a F 2 ) is very widespread.
Consuela lives on the east coast of Florida. She notices a neap tide occurs twice a
month. Neap tides occur when the Sun, the Moon, and Earth are in specific positions.
Sun
mm
Moon
4
Moon
Moon
Earth
Not to Scale
Moon
Which two of the four Moon positions shown above will cause nean tides 2
Answer: 2 and 4
Explanation:
Problems 4-6 convert the measurements into moles.
4. 9.03 x1023 C atoms
5. 2.44x1023 H2O molecules
6. 6.02x1023 Li atoms
Answer:
4. 1.5moles
5. 0.405moles
6. 1 mol
Explanation:
To find the number of moles in each susbtance in this question, we divide each number of atom/molecule measurement by Avagadro's number (6.02 × 10^23 atoms)
That is; nA = n × 6.02 × 10^23 atoms
n = nA ÷ 6.02 × 10^23 atoms
Where;
nA = number of atoms
n = number of moles
4.) n of Carbon = 9.03 x 10^23 ÷ 6.02 × 10^23
n = 1.5 × 10^ (23-23)
n = 1.5 × 10^0
n = 1.5 × 1
n = 1.5moles.
5.) n of H2O = 2.44 x 10^23 ÷ 6.02 × 10^23
n = 0.405 × 10^ (23-23)
n = 0.405 × 10^0
n = 0.405moles
6.) n of lithium = 6.02 x 10^23 Li atoms ÷ 6.02 × 10^23
n = 1 × 10^ (23-23)
n = 1 × 10^0
n = 1 mol
Which elements have similar chemical properties?
a) Na, K, Mg
b) B, Al, S
c) N, O, F
d) He, Ar, Kr
Answer:
d) He, Ar, Kr
Explanation:
To have similar chemical properties, elements must belong to the same period on the periodic table.
As a generally periodic trend, elements within the same group, have the same chemical properties.
So, the correct answer choice will draft elements from the same group.
He, Ar and Kr belongs to the group of elements called the noble gases. They are an unreactive group of elements. They are found in the last group on the periodic table. These elements do not readily combine with other elements.Answer:
D
Explanation:
Place the following metals in order of most reactive to least:
Aluminium
Calcium
Copper
Iron
Magnesium
Sodium
Zinc
Answer:
Sodium
Calcium
Magnesium
Aluminium
Zinc
Iron
Copper
Explanation: