Answer: 1,000cm
You just multiply them together to get the volume.
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
what is the full name of the compund CuSO4?
Please can you help me? (✿◡‿◡)
CuSO4 is Copper Sulphate.
if you could add an explanation that would be nice too :) thanks
What is the name for this? Please help !!!!!!
Answer:
Explanation:
i think it is 2-ethyl-4-methylhexane
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 is the air like in a tropical air mass?
Answer:
dense and humid
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
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:
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.
What is the percent composition of Diphosphorus pentachloride? Round your answers to the hundredths place.
Answer: P: 25.898% CI: 74.102 %
Explanation: Use the formula, Mass % = mass/total Mass x 100%, to solve.
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
Which of the following statements is true? Chemical reactions are the same as atomic reactions. The sun uses nuclear fusion reactions to generate heat. Nuclear power can't be used to do beneficial work. Nuclear fission is more dangerous than nuclear fusion.
Answer:
The sun uses nuclear fusion reactions to generate heat.
Explanation:
It is true from the given choices that the sun uses nuclear fusion reactions to generate heat.
The heat that accompanies nuclear fusion reactions is very huge. In fact this is the source of energy for the whole solar system.
During a nuclear fusion reaction, small atomic nuclei combines to form larger ones.
This combination results in a series of chain reactions that releases energy.
Please help fast! I will give brainliest!
Answer:(c)
Explanation:
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:
https://brainly.com/question/1805828
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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%
If the density is 0.9g/cm3 and the volume is 1.5cm3 ? What is the Mass?
Answer:
1.35g
Explanation:
times the density and volume together to get the mass
0.9 x 1.5 = 1.35g
ILL MARK AS BRAINLESS PLS HELP
The pedigree diagram shows how a dominant trait is inherited in a family. The red circle and squares show family members with the trait. Based on the pedigree diagram, who must be heterozygous for the trait? A. The child with the trait B. The child without the trait C. Only one parent D. Both parents
Answer:
D
Explanation:
Correct on A P E X
Do you think that it is necessary and/or important to take a multivitamin everyday to maintain optimal health? What might help you answer this question? What types of things might influence your decision to take a multivitamin every day?
What's ur opinion with explanation???????!!!!!!!!!!
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.
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
9
A 75 gram sample of water is initially at 30 degrees Celsius. What would it's temperature be if
it absorbed 2000 J of heat?
Answer:
T2 = 36.38°C
Explanation:
Given data:
Mass of water = 75 g
Initial temperature = 30 °C
Final temperature = ?
Heat absorbed = 2000 J
Solution:
Specific heat capacity of water is 4.18 J/g.°C
Formula:
Q = m.c. ΔT
Q = amount of heat absorbed or released
m = mass of given substance
c = specific heat capacity of substance
ΔT = change in temperature
ΔT = Final temperature - initial temperature
2000 J = 75 g×4.18 J/g.°C × T2- T1
2000 J = 313.5 J/°C × T2- T1
2000 J = 313.5 J/°C × T2 - 30 °C
2000 J / 313.5 J/°C = T2 - 30 °C
6.38 °C = T2 - 30 °C
T2 = 6.38 °C + 30°C
T2 = 36.38°C
1. OBJECT A HAS A TEMPERATURE OF 78K AND OBJECT B HAS A
TEMPERATURE OF 125K. HOW DOES HEAT FLOW? What happens to the
temperature of each object?
Answer:
The law of heat conduction, also known as Fourier's law, states that the time rate of heat transfer through a material is proportional to the negative gradient in the temperature. As the temperature difference is bigger, the rate of temperature change will be bigger.
Explonation:
sorry if doesnt
help
The specific heat capacity of copper is 0.385 J/(gK). If 353 J of heat are added to 3.6 moles of copper at 283 K, what is the final temperature of the sample of copper?
Answer:
287K
Explanation:
To find the increasing in temperature for the sample of copper we must use the equation:
Q = m*C*ΔT
Q is the heat added (353J)
m is the mass of copper (3.6mol * (63.546g / mol) = 228.8g
C is specific heat (0.385J/(gK))
And ΔT is the increasing in temperature.
Solving for ΔT:
Q / m*C = ΔT
353J /228.8g*0.385J/(gK) = 4.0K
That means the final temperature of copper is:
283K + 4K =
287KHow 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:
https://brainly.com/question/1457002
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:
What is the formula for flow rate?
Answer:Solve for X+ 2x=
Explanation:
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
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