Answer:
Copper is a good conductor but carbon isn't
Copper has 1 valence electrons but carbon has 4 valence electrons
Explanation:
The two differences between copper and carbon is that of electronic configuration due to which copper is a metal and carbon is a non-metal.
What is electronic configuration?
Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
Learn more about electronic configuration,here:
https://brainly.com/question/29757010
#SPJ6
What is the new pressure of 150 mL of a gas that is compressed to 50 mL when the original pressure was 3.0 ATM and the temperature is held constant
Answer:
[tex]\boxed {\boxed {\sf P_2= 9 \ atm}}[/tex]
Explanation:
Since the temperature is held constant, we only need to focus on the volume and pressure. We will use Boyle's Law, which states the volume of a gas is inversely proportional to the pressure. The formula is:
[tex]P_1V_1=P_2V_2[/tex]
Originally, the gas had a volume of 150 milliliters and a pressure of 3.0 atmospheres. We can substitute these values into the left side of the equation.
[tex]3.0 \ atm * 150 \ mL = P_2V_2[/tex]
The original gas was compressed to a volume of 50 milliliters, but we don't know the volume.
[tex]3.0 \ atm *150 \ mL= P_2 * 50 \ mL[/tex]
Now, we need to solve for the new pressure (P₂). Multiply on the left side first.
[tex]450 \ atm*mL= P_2 * 50 \ mL[/tex]
Since we are solving for the pressure, we need to isolate the variable. It is being multiplied by 50 mL. The inverse of multiplication is division. Divide both sides by 50 mL.
[tex]\frac{450 \ atm*mL}{50 \ mL}= \frac{P_2 * 50 \ mL}{50 \ mL}[/tex]
[tex]\frac{450 \ atm*mL}{50 \ mL}= P_2[/tex]
The units of milliliters will cancel.
[tex]\frac{450 \ atm}{50 }= P_2[/tex]
[tex]9 \ atm =P_2[/tex]
The new pressure is 9 atmospheres.
In a calorimetry experiment the water absorbs 273 J of heat (q), how much heat (q) is released by the metal if no heat is lost? Remember: -qreleased = qabsorbed ANS: _____ kJ/mol
Answer:
qreleased = -273J.
Explanation:
Hello there!
In this case, according to this calorimetry question, and keeping in mind that the hot substance releases heat to the cold substance which absorbs it, according to:
-qreleased = qabsorbed
In such a wat, since the water absorbs 273 J of heat and no heat is lost, the amount of this measurement released by the metal is:
-qreleased = 273J
qreleased = -273J
Regards!
copper oxide + hydrochloric acid →
Answer:
copper oxide + hydrochloric acid --> copper chloride + water
Explanation:
Thenks and mark me brainliest :))
Answer:
Copper oxide hydrochloric acid ( CuCl2 + H2O)
Explanation:
CuO + HCl → CuCl2 + H2O
6. The gas in a steel cylinder is at 55 °C and a pressure of 965 mmHg. What would be the temperature,
in Celsius, when the pressure is 850 mmHg?
Answer:
91.4°C
Explanation:
Gay - Lussac Law => T ∝ P => T = kP => k = T/P with volume (V) and mass (n) constant.
For two different Temperature (T)-Pressure (P) conditions
k₁ = k₂ => T₁/P₁ = T₂/P₂ => T₂ = T₁(P₂/P₁)
T₁ = 55°C = (55 + 273)K = 328K
P₁ = 965 mmHg
T₂ = ?
P₂ = 850 mmHg
T₂ = T₁(P₂/P₁) = 328K(850 mmHg/965 mmHg) = 364K = (364 - 273)°C = 91.4°C
Plz help (it’s a picture)
Answer:
Shown below
Explanation:
Molar mass: 149.09
% Nitrogen: 28.2
% Hydrogen: 8.1
% Oxygen: 43.0
% Phosphorus: 20.8
Which refers to solid ice that condenses and forms on surfaces like grass or windows?
dew
frost
hail
sleet
Frost refers to solid ice that condenses and forms on surfaces like grass or windows.
WHAT IS FROST?Frost refers to a deposit of small white ice crystals formed on solid surfaces when the temperature falls below freezing temperature.
Frost forms when the temperature of the atmosphere is below freezing i.e. < 0°C.
Therefore, frost refers to solid ice that condenses and forms on surfaces like grass or windows.
Learn more about frost at: https://brainly.com/question/24843495
what is Gay lussac's law
Explanation:
Gay-Lussac's law states that the pressure of a given mass of gas varies directly with the absolute temperature of the gas when the volume is kept constant. Mathematically, it can be written as: {\displaystyle {\frac {P}{T}}=k}. It is a special case of the ideal gas law.
Intravenous saline solutions are often administered to patients in the hospital. Normal saline solution containers has a concentration of 0.20 M and a volume of 0.10L of solution. How many moles of sodium chloride were dissolved? *
2 points
0.02 mol
2.0 mol
0.5 mol
5 mol
0.02 mol NaCl
Explanation:
(0.2M NaCl)×(0.10 L) = 0.02 mol NaCl
3. Svante Arrhenius developed a definition of acids and bases
which stated...
A. acids produce OH+ ions and bases produce H ions
B. acids produce H+ ions and bases produce OH ions
STAT
C. acids and bases are the same
D. acids have a high pH and bases have a low pH
pls help
btw any links will be reported.
A gas occupies 4.21 Iiters at a pressure 1 074 atm. What will its volume be if the pressure is decreased to 0.46 atm?
Answer:
15.9 Liters
Explanation:
according to Boyle's law P1V1 = P2V2
so we just plug in the values the problem gives us and solve for V2
(1.74)(4.21)=(.46)(V2)
V2 = 15.9 Liters
*note - there is a typo in your question when you states P1 = 1 074 atm. I just assumed you meant 1.74, if this is a mistake just replace 1.74 with the real P1 and solve it as shown above
if you have any questions just comment them below
Please help! This is for the 9.06 Acid Neutralization Lab! Due today!
Amount of added (mL) | Litmus color | Approximate pH
1 | |
2 | |
3 | |
4 | |
5 | |
6 | |
7 | |
8 | |
9 | |
10 | |
hi there bestie [i think its 3]
What is the pH of a solution of HCL with a concentration of
5 x 10^-4
Which occurs within a high pressure system?
Answer:
A high pressure system has higher pressure at its center than the areas around it. Winds blow away from high pressure. Swirling in the opposite direction from a low pressure system, the winds of a high pressure system rotate clockwise north of the equator and counterclockwise south of the equator.
Answer:
Dense air is pushed downwards towards the surface. since the air is being pushed down the air above spreads and thats when "fair wheather" happens.
Explanation:
Hope that helped!
find the mass of an object on earth if its weight is 100N
what is the weight of an object on a planet with gravity of 2m/s^2 and mass 4 kg
if an object has mass of 200 g on earth what is its weight
find the force of an object if its mass is 6 kg and its on earth
finf the mass of an object if its force is 150 N and a = 10 m/s^2
Answer:
0.19 kg
8 N
1.964 N
58.86 N
15 kg
Explanation:
w = Weight of an object = 100 N
g = Acceleration due to gravity of Earth = [tex]9.81\ \text{m/s}^2[/tex]
m = Mass of an object
Weight is given by
[tex]w=mg\\\Rightarrow m=\dfrac{w}{g}\\\Rightarrow m=\dfrac{100}{9.81}\\\Rightarrow m=10.19\ \text{kg}[/tex]
Mass of the object is 0.19 kg
g = [tex]2\ \text{m/s}^2[/tex]
m = 4 kg
[tex]w=mg\\\Rightarrow w=4\times 2\\\Rightarrow w=8\ \text{N}[/tex]
Weight of the object is 8 N.
m = 200 g
[tex]w=mg\\\Rightarrow w=0.2\times 9.81\\\Rightarrow w=1.964\ \text{N}[/tex]
Weight of the object is 1.964 N.
Weight is the force the Earth exerts on an object which is on the surface of the Earth.
m = 6kg
[tex]w=mg\\\Rightarrow w=6\times 9.81\\\Rightarrow w=58.86\ \text{N}[/tex]
The force of the object is 58.86 N.
w = 150 N
a = g = [tex]10\ \text{m/s}^2[/tex]
[tex]m=\dfrac{w}{g}\\\Rightarrow m=\dfrac{150}{10}\\\Rightarrow m=15\ \text{kg}[/tex]
Mass of the object is 15 kg.
At what temperature will 2.50 moles of ideal
gas produce a pressure of 25.0 atm in a 10.0 L
container
Answer: 1,218K
Explanation:
explain how soil can affect the composition of the solution that move through it
Answer: Soils are formed through the interaction of five major factors: time, climate, parent material, topography and relief, and organisms.
Soil structure affects plant growth in many, often surprising, ways. The most obvious effects are on root growth, which is strongly inhibited by hard soil, and which in turn influences the ability of the root system to extract adequate water and nutrients from the soil.
Explanation:
https://www.publish.csiro.au/sr/pdf/SR9910717
This is where I gather some info.
In your OWN words, what is the difference between a solute, solvent and solution?
Answer:
could u all help me??
Who was Agamemnon trying to persuade to come fight with him again?
Patroclus
Achilles
Odysseus
Hector
Explanation:
Question 1: Jensen is a huge fan of Wendy’s, especially their buttermilk ranch dressing. One of his friends told him that they wouldn’t be surprised if he had decided to take a bath with it, so naturally, he wants to do just that. The net weight of a single ranch container is 21.3g and the weight of the packaging is 0.4g, with a volume of 0.75fl oz. Jensen’s perfectly rectangular bathtub has the dimensions 2.3m x 1.2m x 0.46m. Using this information, calculate a) the density of the ranch dressing, b) the mass of ranch dressing needed to fill the tub to the brim, and c) the number of containers of ranch he needs to fill the tub.
Useful Conversions: 1 fl oz = 29.57 mL, 1 cm3 = 1 mL
Answer:
has the dimensions 2.3m x 1.2m x 0.46m. Using this information, calculate a) the density of the ranch dressing, b) the mass of ranch dressing needed to fill the tub
hello, can someone help? i’ve been stuck on this for a few days... it will be greatly appreciated if u help T-T thanks in advance
Answer:
A
B
C
Explanation:
Remark
Delta H is put on the reactant side of the equation. If delta H is plus the reaction goes to the right. If anything causes delta H to decrease, the reaction shifts left when delta H is originally negative.
One
Delta H is positive which means that heat has to be added before the reaction can take place. If the temperature decreases, then H2 will decrease because delta H is fighting off the temperature decrease The answer is A
Two
Pressure decreases. The side (left or right) with the most number of moles will be favored. The left side has 2 moles. The right side has 4 moles. The right side is favored. Answer: B
Three
The concentration of NH3 increases. That will increase the products. H2 increases. Answer C
Na2O H2 --> 2Na H2O A student performed the above reaction in the lab, and obtained an actual yield of 3.9 grams of H2O. He calculated a theoretical value of 4.2 grams of H2O. Calculate the percent yield of the reaction.
Answer:
Percentage yield = 92.86%
Explanation:
We are given;
Actual yield = 3.9 grams
Theoretical yield = 4.2 grams
Formula for percent yield is;
% yield = (actual yield/theoretical yield) × 100%
Thus;
% yield = (3.9/4.2) × 100%
% yield = 92.86%
Once you have completed a correct water cycle, include a paragraph summary of the process, and how certain steps of the process may affect you.Write your answer in the essay box below.
Answer:
That fresh water hydrates the carbon-based lifeforms on earth. But through evaporation, and transpiration from plants leaf surfaces, it gets back into the atmosphere to feed clouds for the next rainfall. The cycling of liquid water and returning vapor creates our climate and our living environment.
Explanation:
The summary of the water cycle process is given below.
What are the important steps in water cycle?The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.
Water in different phases moves through the atmosphere (transportation). Liquid water flows across land (runoff), into the ground (infiltration and percolation), and through the ground (groundwater).
Groundwater moves into plants (plant uptake) and evaporates from plants into the atmosphere (transpiration). Solid ice and snow can turn directly into gas (sublimation). The opposite can also take place when water vapor becomes solid (deposition).
Therefore, The summary of the water cycle has been explained.
Learn more about water cycle here:
https://brainly.com/question/31195929
#SPJ2
13. PLEASE HELP
The volume of a gas is 4.0 L, the pressure is 1 atm, and the temperature is 200 K. A chemist
changes one factor while keeping another constant so that the new volume is 5.0 L. Which of
the following could be the new conditions? (4 points)
The final pressure is 0.8 atm, while temperature is kept constant.
The final temperature is 150 K, while pressure remains constant.
The final pressure is 1.5 atm, while temperature is kept constant.
m
The final temperature is 100 K, while pressure remains constant.
Answer:
A the pressure is changed to 0.8
Explanation:
Boyles gas law
The factor that the chemist changed is so that the new volume is 5.0 L is the final pressure is 0.8 atm, while temperature is kept constant.
What is Boyle's law?Robert Boyle studied the relationship between pressure p and volume V of a fixed amount of gas held at a constant temperature in the mid 1600s.
Boyle discovered that the product of pressure and volume remains nearly constant. For an ideal gas, the product of pressure and volume is a constant.
Thus, the correct option is A, The final pressure is 0.8 atm, while temperature is kept constant.
Learn more about Boyle's law
https://brainly.com/question/1437490
#SPJ2
Classify the following statement as a prediction, observation, theory,
or law. Please be sure to classify the statement exactly as it is
written!
If he kicks the ball, then it will go into the goal.
Answer:
I believe that it is a prediction.
Explanation:
Because you can't kick the ball and say it will go into the goal. Of course if it is right in front of the goal and you kick it will go in but in both cases if you kick it too hard it will go in and then bounce off the net and roll back out of the goal. So in my opinion it is a prediction.
what is A magnet?Write its uses.
Answer:
Magnets are used to make a tight seal on the doors to refrigerators and freezers. They power speakers in stereos, earphones, and televisions. Magnets are used to store data in computers, and are important in scanning machines called MRIs (magnetic resonance imagers), which doctors use to look inside people's bodies.
PLEASE MARK ME A BRAINLIST
Complete them with correct formulas
Then balance them
Answer:
1. 2Ca + N[tex]_{2}[/tex] → 2CaN
2. 4Li + O[tex]_{2}[/tex] → 2Li[tex]_{2}[/tex]O
3. 2KCl + BaF[tex]_2[/tex] → 2KF + BaCl[tex]_2[/tex]
4. CH[tex]_4[/tex] + 2O[tex]_2[/tex] → CO[tex]_2[/tex] + 2H[tex]_2[/tex]O
Be sure to balance the number of atoms on both sides of each equation only by adding coefficients to the compounds!!!! Those without a coefficient are meant to have a coefficient of 1.
calculate the mols of alt gas if the volume is 0.97 liters at a temperature of 12 C and the pressure is 152 Kpa’s
Answer:
0.062mol
Explanation:
Using ideal gas law as follows;
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821Latm/molK)
T = temperature (K)
Based on the information provided;
P = 152 Kpa = 152/101 = 1.50atm
V = 0.97L
n = ?
T = 12°C = 12 + 273 = 285K
Using PV = nRT
n = PV/RT
n = (1.5 × 0.97) ÷ (0.0821 × 285)
n = 1.455 ÷ 23.39
n = 0.062mol
If a car speeds up from 80km/hr to 110km/hr to pass another vehicle in 1.5 min (0.025hrs), what is their acceleration?
Answer: uhhhh im pretty sure the answer is 69m/hr
Explanation:
justify, a substance is not totally consumed after two half lives.
Answer:
The answer is in the explanation
Explanation:
Half-life is defined as the time that a substance requires to decrease its concentration in the half of the initial concentration. For example, if we have 1M of a substance X, after 1 half life the concentration is:
1M / 2 = 0.5M
Now, after the second half-life, the concentration would be:
0.5M / 2 = 0.25M
That is the reason why the substance is not totally consumed after two half lives.
How many moles of solute would you need to add to 500mL solution to get a
molarity of 3.7 mol/L?
Answer:
7.4 moles solute
Explanation:
From definition of Molarity (M) = moles solute (n)/volume of solution in Liters(V)
=> moles solute (n) = Molarity (M) x Volume (L) = (3.7 moles/L)(0.500L) = 7.4 moles solute
Does gold have high lustre?