Answer:
it is most likely as a water cycle
An airplane has a mass of 12,000kg. If it is accelerating at 16m/sec2, what is its force?(round to the nearest whole number) NEED THIS ASAP
Answer:
[tex]F=1.92x10^5N[/tex]
Explanation:
Hello!
In this case, since the force exerted by an object with a certain mass an acceleration is:
[tex]F=m*a[/tex]
We can plug in the given mass of 12,000 kg and acceleration of 16 m/s^2 to obtain:
[tex]F=12,000kg*16m/s^2\\\\F=192,000kg*m/s^2\\\\F=1.92x10^5N[/tex]
Best regards!
3.Which of these is NOT part of the cell theory? * "
all living things are made of cells
Ocells come only from other cells
cells are the smallest living unit of an organism
O all living things have blood cells
Answer:
Cells are the smallest living unit of an organism
Answer:
all living things living things have blood cells
Explanation:
this is because robert hooke did not make this apart of the theory
2. What is the percent composition of Mg(IO3)2?
Answer:
Mass percentage 6.4967
Explanation:
I had some study notes
Hail is falling down from the sky at 50 miles per hour. Is this an example of speed,
velocity or acceleration?
Explanation:
tgggghhhhijyyhhjjjjjjjj
What type of reaction is shown here. NaCl + LiF = NaF + Lici*
Answer:
displacement reaction
Explanation:
more reactive sodium displaces lithium
NaCl + LiF ⇒ NaF + LiCl
Zn(s) + 2 HCl(aq) —> ZnCl2(aq)
+ H2(g)
If a scientist wanted to create 10L of hydrogen gas at RTP, what mass of HCl would they need to start with?
Answer:
First write the balanced equation for the reaction of HCl with Zn (NOTE: the previous answer did NOT do this and thus obtained an incorrect answer)
Zn + 2HCl ==> ZnCl2 + H2(g)
moles of H2 desired: PV = nRT
n = PV/RT = (1 atm)(10L)/(0.0821 Latm/Kmol)(298K)
n = 0.409 mole H2 desired
moles Zn needed:
0.409 moles H2 x 1 mole Zn/2 moles HCl = 0.204 moles Zn needed
mass Zn needed = 0.204 moles Zn x 65.4 g/mol = 13.4 g Zn needed (to 3 sig. figs.)
Explanation:people always get this wrong but i got you
(b) Why must acidic gases be treated before they are released into the atmosphere?
Answer:
because they react with other gases of atmosphere and pollute the environment
Hello, this is a science task and it is due today I would really appreciate it if you guys can help me answer and explain what is the difference between expansion and contraction:) I will mark brainliest!
Answer:
Expansion: increase in size Contraction: decrease in size
Explanation:
The increase in size of an object on heating is called expansion where as the decrease in size of an object on cooling is called contraction.
why is seawater a better conductor of electricity than freshwater?
Answer:
please refer to the attachment above;)
Answer:
Because it contains Na+ and Cl- ions, Which are conductors of electricity
Explanation:
Determine the molecular formula for a compound that has a molecular mass of 52.0 g/mole
and and is composed of 92.31% carbon and 7.69% hydrogen.
Answer:
C4H4
Explanation:
92.31% of 52.0 g/mol is 48.0012 g/mol
7.69% of 52.0 g/mol is is 3.9988 g/mol
Carbon has a gram-formula mass of about 12, which goes into 48.0012 about 4 times, so there should be 4 atoms of Carbon
Hydrogen has a gram-formula mass of about 1, which goes into 3.9988 about 4 times, so there should also be 4 atoms of hydrogen
write a chemical equation that represents baking soda (NaHCO3) reacts with hydrochloric acid (HCI) to produce sodium chloride, water and carbon dioxide
Answer:
NaHCO3 + HCl = NaCl + H2O + CO2
Explanation:
The total number of atoms of each element on either side of the equation must be equal.
The process utilized to save an organism's DNA for use in the future is:
A tissue biopsy
B DNA
C clone
D genetic preservation
Answer:
I believe it's D!
Explanation:
B is what is being saved, C is a potential creation of, A is a method.
Which of the following particles has the smallest
mass?
A) electron
C) neutron
B) hydrogen atom
D) proton
Answer:
AN ELECTRON HAS THE SMALLEST MASS!
Answer:
A) electron
good luck, i hope this helps :)
How does Earth's rotation affect ocean currents! It causes them to flow in a curved path. It causes them to flow from north to south It causes them to flow from east to west. None of the above
Answer:
But because the Earth rotates, circulating air is deflected. Instead of circulating in a straight pattern, the air deflects toward the right in the Northern Hemisphere and toward the left in the Southern Hemisphere, resulting in curved paths. This deflection is called the Coriolis effect.
The Coriolis effect describes how Earth's rotation steers winds and surface ocean currents. ... The Coriolis effect causes the path of a freely moving object to appear to curve. This is because Earth is rotating beneath the object. So even though the object's path is straight, it appears to curve.
Explanation:
Your uncle complained about feeling weak and dizzy and having experienced
palpitations. The doctor’s diagnosis is that he has hyperthyroidism, which may lead to
goiter. Which of the following ions is related to this disorder?
A. Calcium ion
B. Potassium ion
C. Iodine ion
D. Sodium ion
Answer:
C.Iodine ion
Explanation:
BECAUSE HIS LACK OF IODINE THAT'S WHY HE HAS GOITER
study the image wich shows an air mass moving into a region wich type of weather will this region most likely experience due to the incoming air mass
Answer:
766ijn
Explanation:
hovibibbunununububububyhybyybybnu
I forgot, does odor have volume?
Answer: oder has mass
Explanation:
For the balanced equation shown below, what would be the limiting reagent if 42.3 grams
of N2O5 were reacted with 9.18 grams of H2O?
N2O5+H2O---> 2HNO3
A. HNO3
B. H20
C. N205
Answer: A. HNO3
Explanation:
How many moles are in 1.51x10^26 atoms of xenon (Xe)? Please and thank you :)!!
251 mol Xe
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
[Given] 1.51 × 10²⁶ atoms Xe
[Solve] moles Xe
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
[DA] Set up: [tex]\displaystyle 1.51 \cdot 10^{26} \ atoms \ Xe(\frac{1 \ mol \ Xe}{6.022 \cdot 10^{23} \ atoms \ Xe})[/tex][DA] Multiply/Divide [Cancel out units]: [tex]\displaystyle 250.747 \ mol \ Xe[/tex]Step 4: Check
Follow sig fig rule and round. We are given 3 sig figs.
250.747 mol Xe ≈ 251 mol Xe
help asap pls,
find the percent composition
Explanation:
1. Pb(CO3)2
Element Number Mass Percet Composition
Oxygen 6 16.00 29.34%
Carbon 2 12.01 7.34%
Lead 1 207.21 63.32%
2. Ga(OH)3
Element Number Mass Percet Composition
Hydrogen 3 1.0079 2.50%
Oxygen. 3 16.00 39.75%
Gallium 1 69.72 57.74%
3. P4O10
Element Number Mass Percet Composition
Oxygen. 10 16.00. 56.36%
Phosphorus. 4 30.97 43.64%
4. Ca3P2
Element Number Mass Percet Composition
Phosphorus 2 30.97 34.00%
Calcium. 3 40.08 66.00%
5. Ti(NO3)3
Element Number Mass Percet Composition
Oxygen. 9 16.00 61.56%
Titanium. 1 47.87 20.47%
Nitrogen. 3 14.01 17.97%
What is a word that means carbon and water
Answer:
When Carbohydrates are burned (decomposed ) they break down into carbon and water.
Explanation:
The formula for glucose sugar is C6H12O6 If the compound is broken down it results in
6C+6H2O six carbon atoms and six water molecules.
An experiment that illustrates this well is to pour concentrated sulfuric acid about 1/3 deep into the volume of graduated sucrose sugar in a beaker about 1/4 full
The sulfuric acid is hydrophilic it will break the sucrose sugar molecule apart. The water will rise as steam above the beaker.
The sugar will turn brown and the a black carbon cone will rise out of the sugar sulfuric acid solution. The carbon cone will rise about the top of the beaker.
This experiment shows that the carbohydrate sugar is made of only Carbon and Water.
According to this video, how do scientists use data to study/monitor earthquakes and tsunamis?
Answer:
ewan ko po
Explanation:
sana makatulong
What is delta Gº for the following reaction at 25 °C?
CO(g) + 2 H2(g) = CH OH(9)
Ky = 2.1 x 10-4
Answer:
21 kJ/mol
Explanation:
Step 1: Given and required data
Temperature (T): 25 °C (298 K)Equilibrium constant (Kc): 2.1 × 10⁻⁴Ideal gas constant (R): 8.314 J/K.molStep 2: Write the balanced equation at equilibrium
CO(g) + 2 H₂(g) ⇄ CH₃OH(g)
Step 3: Calculate the standard Gibbs free energy of the reaction (ΔG°)
We will use the following expression.
ΔG° = - R × T × ln Kc
ΔG° = - (8.314 J/K.mol) × 298 K × ln 2.1 × 10⁻⁴ = 2.1 × 10⁴ J/mol = 21 kJ/mol
How much would the temperature of a 34.2 g sample of argon gas decrease when 2.8 kJ of heat is removed?
Your answer should be in °C.
Answer:
8.90
Explanation:
because I calculated it
A weather balloon contains 394 L of hydrogen gas at STP. How many moles of hydrogen are present?
Answer:
PV=nRT
STP is 100kPa and 273.15K
PV/RT=n
n=17.3moles
Explanation:
10. Imagine that the unknown solution contains aqueous ammonium sulfate, which is commonly used in fertilizer. For the precipitation of barium sulfate after mixing aqueous ammonium sulfate solution and barium chloride solution (the reactants), write the (1) balanced molecular equation, (2) the complete ionic equation, (3) the net ionic equation AND identify the spectator ions, if any.
Answer:
(1) (NH₄)₂SO₄(aq) + BaCl₂(aq) ⇒ BaSO₄(s) + 2 NH₄Cl(aq)
(2) 2 NH₄⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2 Cl⁻(aq) ⇒ BaSO₄(s) + 2 NH₄⁺(aq) + 2 Cl⁻(aq)
(3) SO₄²⁻(aq) + Ba²⁺(aq) ⇒ BaSO₄(s)
(4) NH₄⁺ and Cl⁻
Explanation:
(1) Let's consider the molecular equation that occurs after mixing aqueous ammonium sulfate solution and barium chloride solution. This is a double displacement reaction.
(NH₄)₂SO₄(aq) + BaCl₂(aq) ⇒ BaSO₄(s) + 2 NH₄Cl(aq)
(2) The complete ionic equation includes all the ions and insoluble species.
2 NH₄⁺(aq) + SO₄²⁻(aq) + Ba²⁺(aq) + 2 Cl⁻(aq) ⇒ BaSO₄(s) + 2 NH₄⁺(aq) + 2 Cl⁻(aq)
(3) The net ionic equation includes only the ions that participate in the reaction (not spectator ions) and the insoluble species.
SO₄²⁻(aq) + Ba²⁺(aq) ⇒ BaSO₄(s)
(4) The spectator ions are NH₄⁺ and Cl⁻.
PLEASE HELP!! DIMENSIONAL ANALYSIS USING METRIC CONVERSIONS!!!
I am so confused and am so lost despite all the videos i’ve tried watching, please help!!
Answer: Simpe its 1
Explanation:I took that quiz before hope this helps :)
Which of these statements is false?
A. All matter is made up of atoms.
B. Atoms are made up of protons,
neutrons, and electrons.
C. Atoms contain chemical bonds.
D. Atoms are the smallest particles of
elements.
Answer:
C is the false one atoms contain chemical bonds
Answer:
C. Atoms contain chemical bonds.
Reason:
Atoms don't have any chemical bonds. Molecules are the particles have chemical bonds.
if you were one of the immigrants, would you willingly submit to have yourself undergone x-ray to prove yourself being a minor? why or why not?
Answer:
I'm pretty sure this is a question about your opinion so there is no wrong answer! Just think about the question and if you were in those shoes. There is no right or wrong answer! :)
Explanation:
A certain substance has a heat of vaporization of 64.08 kJ/mol. At what Kelvin temperature will the vapor pressure be 6.50 times higher than it was at 355 K?
Answer:
[tex]T_2 =388.50K[/tex]
Explanation:
Given
[tex]p_1 = ??[/tex] -- Initial vapour pressure
[tex]p_2 = 6.50p_1[/tex] --- Final vapour pressure
[tex]T_1 = 355K[/tex] ---- Initial temperature
[tex]T_2 = ??[/tex] --- Final temperature
[tex]\triangle _{vap}H = 64.08kJmol[/tex] --- Enthalpy of vaporization
Required
Calculate T2
To do this, we make use of Clausius-Clapeyron equation.
Which states that:
[tex]ln(\frac{p_2}{p_1}) = \frac{\triangle _{vap}H}{R}(\frac{1}{T_1} - \frac{1}{T_2})[/tex]
Where:
[tex]R = 8.314 J.K^{-1}mol^{-1}[/tex] --- Universal Gas constant
[tex]\triangle _{vap}H = 64.08kJmol[/tex]
[tex]\triangle _{vap}H = 64080\ kJmol[/tex]
[tex]ln(\frac{p_2}{p_1}) = \frac{\triangle _{vap}H}{R}(\frac{1}{T_1} - \frac{1}{T_2})[/tex] becomes
[tex]ln(\frac{6.50p_1}{p_1}) = \frac{64080}{8.314}(\frac{1}{355} - \frac{1}{T_2})[/tex]
[tex]ln(\frac{6.50p_1}{p_1}) = 7707.48(\frac{1}{355} - \frac{1}{T_2})[/tex]
[tex]ln(6.50) = 7707.48(\frac{1}{355} - \frac{1}{T_2})[/tex]
[tex]1.872 = 7707.48(\frac{1}{355} - \frac{1}{T_2})[/tex]
Take LCM
[tex]1.872 = 7707.48(\frac{T_2 - 355}{355T_2})[/tex]
[tex]1.872 = 7707.48*\frac{T_2 - 355}{355T_2}[/tex]
[tex]1.872 = \frac{7707.48*(T_2 - 355)}{355T_2}[/tex]
Cross Multiply
[tex]355T_2*1.872 = 7707.48*(T_2 - 355)[/tex]
[tex]664.56T_2 = 7707.48T_2 - 2736155.4[/tex]
Collect Like Terms
[tex]664.56T_2 - 7707.48T_2 =- 2736155.4[/tex]
[tex]-7042.92T_2 =- 2736155.4[/tex]
Make T2 the subject
[tex]T_2 =\frac{- 2736155.4}{-7042.92}[/tex]
[tex]T_2 =388.497299416[/tex]
[tex]T_2 =388.50K[/tex]
The final temperature is 388.50K
The temperature at which the vapor pressure will be 6.50 times higher than it was at 355K is 389 K
The Clausius-Clapeyron Equation is widely used for the determination of the vapor pressure of another temperature, provided we know the vapor pressure at a certain temperature as well as the heat of vaporization.
Given that:
the heat of vaporization [tex]\mathbf{\Delta H_{vap} = 64.08 \ kJ/mol = 64.08 \times 10^3 J/mol}[/tex] the initial temperature T₁ = 355 Kthe final temperature T₂ = ???if the pressure at T₁ = P₁then, the pressure at T₂ = 6.5P₁the universal gas constant = 8.314 J/K/molBy using the Clausius-Clayperon Equation:
[tex]\mathbf{In \Big( \dfrac{P_2}{P_1} \Big) = \dfrac{\Delta H_{vap}}{R} \Big (\dfrac{1}{T_1} - \dfrac{1}{T_2} \Big) }[/tex]
[tex]\mathbf{In \Big( \dfrac{6.5P_1}{P_1} \Big) = \dfrac{64.08 \times 10^3 }{8.314} \Big (\dfrac{1}{355} - \dfrac{1}{T_2} \Big) }[/tex]
[tex]\mathbf{In(6.5)=7707.48 \Big (\dfrac{1}{355} - \dfrac{1}{T_2} \Big) }[/tex]
[tex]\mathbf{1.872 =21.71 - \dfrac{7707.48}{T_2} }[/tex]
[tex]\mathbf{\dfrac{7707.48}{T_2} = 21.71- 1.872 }[/tex]
[tex]\mathbf{\dfrac{7707.48}{T_2} = 19.838 }[/tex]
[tex]\mathbf{T_2= \dfrac{7707.48}{19.838} }[/tex]
[tex]\mathbf{{T_2}=388.521 \ K }[/tex]
T₂ ≅ 389 K
Learn more about Clausius-Clayperon equation here:
https://brainly.com/question/1077674?referrer=searchResults