Do you think it is still possible for the Church today to imitate the ways of the early Christians? Give reason for your answer.
Answer:
Explanation:
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like and follow.
Explain why the melting temperature of boron trichloride is much lower than that of sodium chloride
Why are the three atoms are isotopes of magnesium
Answer:
Magnesium is a naturally ubiquitous; (appearing & found evrywhere) element and has three naturally occurring stable isotopes, 24Mg, 25Mg and 26Mg, with relative abundance of 78.99%, 10.00% and 11.01%, respectively.
However, they differ only because a 24Mg atom has 12 neutrons in its nucleus, a 25Mg atom has 13 neutrons, and a 26Mg has 14 neutrons.
Explanation:
what is the osmotic pressure of a 0.850 m solution of glucose in water at 35 °c?
The osmotic pressure of the glucose solution is 21.49 atm.
From the question given above, the following data were obtained:
Molarity (M) = 0.85 MTemperature (T) = 35 °C = 35 + 273 = 308 KVan't Hoff's factor (i) = 1 (non-electrolyte)Gas constant (R) = 0.0821 atm.L/KmolOsmotic pressure (π) =?π = iMRT
π = 1 × 0.85 × 0.0821 × 308
π = 21.49 atm
Therefore, the osmotic pressure is 21.49 atm
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6.23 X 10^6 KL + 5.34 × 10^6 kL
Find the mass in kilograms of the liquid air that is required to produce 600L of oxygen. In normal condition, 1L of liquid air has 1.3g
Explanation:
1L is 1.3 g so 600L is 780 g
1kg= 1000g so
780 g = 0.78kg
I GUESS
Mass in kilograms of liquid air required = 0.78 kg
Given that
1 Litre of liquid air contains 1.3 grams of oxygen ( air )
Determine the amount of liquid air in Kg
volume of air given = 600 L
mass of liquid air required = x
1 litre = 1.3 grams
600 L = x
∴ x ( mass of liquid air ) = 1.3 * 600
= 780 g = 0.78 kg
Hence we can conclude that Mass in kilograms of liquid air required = 0.78 kg
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What is the mass of air in room
Answer:
the mass of the air in the room is 4.96512 kg ( in 0°C)
match each statements with the state of matter it describes?
Answer:
Solid liquids , plasma gas
Explanation:
It retains its shape regardless of the shape of the container
What are some examples of a physical change? (list more than 2 examples)
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Jason completed an experiment and found the materials that conduct electricity and the materials that do not conduct electricity well. He made a table of his findings, but he made one mistake. Review his table, and choose the best answer that will correct the error in his table.
Conducts Electricity Does Not Conduct Electricity Well
Silver necklace
Rubber boot
Cast iron frying pan
Plastic cell phone case
Ceramic coffee cup
Glass cup
A. A rubber boot does not conduct electricity well, so it is in the wrong group.
B. A glass coffee cup conducts electricity well, so it is in the wrong group.
C. A plastic cell phone case conducts electricity well, so it is in the wrong group.
D. A cast iron frying pan does not conduct electricity well, so it is in the wrong group.
Answer:
A.) A rubber boot does not conduct electricity well, so it is in the wrong group.
Explanation:
A glass coffee cup conducts electricity well when it is heated
Answer:
i think the answer is a rubber boot if i am correct
Explanation:
2870 j of energy is required to heat and boil one gram of water at 20 °c. how much water at this temperature can 7.14 × 1010 j of energy heat and boil?
Answer:
Explanation:
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The mass of water is equal to 2.48 × 10⁷ g, needs the energy of 7.14 ×10¹⁰ J to heat and boil.
What is the specific heat capacity?The specific heat capacity can be demonstrated as the quantity of energy needed to increase the temperature by one-degree Celcius in one unit of substance.
The temperature will be changed whenever there is a loss or absorption of energy by any substance.
Q = mCΔT
Therefore, there is a direct relationship between the mass of water and the amount of energy.
m ∝ q
[tex]{\displaystyle {\frac{m_1}{m_2} =\frac{q_1}{q_2}[/tex]
[tex]{\displaystyle {m_2} =\frac{q_2}{q_1} \times m_1[/tex]
Given, the energy required to heat mass(m₂) of water, q₂ = 7.14 ×10¹⁰ J
The energy to heat 1 gram of water, q₁ = 2870 J
[tex]{\displaystyle {m_2} =\frac{7.14\times 10^{14}}{2870} \times 1[/tex]
m₂ = 2.48 × 10⁷ g
Therefore, the mass of water is equal to 2.48 × 10⁷ g.
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What is the word equation for atoms of magnesium reacting with molecules of oxygen to produce magnesium oxide? magnesium magnesium oxide Right arrow. Oxygen magnesium oxygen Right arrow. Magnesium oxide magnesium oxide oxygen Right arrow. Magnesium magnesium oxygen Right arrow. Magnesium oxygen.
The word equation for atoms of magnesium reacting with molecules of oxygen to produce magnesium oxide is:
Magnesium and oxygen right arrow Magnesium oxide
Chemical equations basically has two sides
Reactant ProductThe reactants are located on the left hand side while the products are located on the right hand side. The reactants and products are separated by an arrow symbol as shown below:
Reactant —> product
With the above information in mind, we can obtain the answer to the question as follow:
Reactant = Magnesium and oxygen Product = Magnesium oxideReactant —> product
Magnesium + oxygen —> Magnesium oxide
Magnesium and oxygen right arrow Magnesium oxide
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Answer:
B
Explanation:
i think this is right :)
What rule predicts the, stability of a atoms forming compounds.
Answer:The octet rule
Explanation:that there is eight electrons in the valence shell to make it stable.
Explanation:
atom with greater stability have less energy, so a reaction that the stability of the atom will release in the form of heat or light.
what was transferred from the hydrochloric acid to the water molecule
A proton (H⁺) is transferred from the hydrochloric acid to the water molecule.
What is Bronsted-Lowry theory?Bronsted-Lowry theory is used to classify acids and bases.
Acid: is a substance that donates H⁺.Base: is a substance that accepts H⁺.Hydrochloric acid is an acid and when it reacts with water, it transfers an H⁺ ion, according to the following equation.
HCl + H₂O ⇒ Cl⁻ + H₃O⁺
A proton (H⁺) is transferred from the hydrochloric acid to the water molecule.
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How do carbon atoms form many organic compounds
Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons. Carbon can form single, double, or triple covalent bonds with other carbon atoms.
a wrong
b wrong
c right
d wrong
Determine the mass of O(2-) ions in 3 mol of alumina (Al2O3). Molar mass of O = 16)
Considering the rule of three and molar mass of O, the mass of O²⁻ ions in 3 mol of alumina Al₂O₃ is 96 grams.
By multiplying the number of moles by the subscripts next to each atom, you get the amount of each element present in the compound. IIf the same atom appears more than once in the compound, you must add its amounts.
So, in 1 mole of Al₂O₃, you have 2 ions of O²⁻.
Then you can apply the following rule of three: if 1 mole of the compound contains 2 ions of O²⁻, 3 moles of the compound contains how many ions of O²⁻?
[tex]amount of ions of O^{2-} =\frac{3 moles of Al_{2} O_{3} x2 ions of O^{2-}}{1mole of Al_{2} O_{3} }[/tex]
amount of ions of O²⁻= 6 ions
Being the molar mass of O 16 g/mole, this is the amount of mass that a substance contains in one mole, then the mass of O²⁻ can be calculated as:
6 x 16 g/mole= 96 grams
Finally, the mass of O²⁻ ions in 3 mol of alumina Al₂O₃ is 96 grams.
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https://brainly.com/question/3588290?referrer=searchResultshttps://brainly.com/question/25873251?referrer=searchResultsCalculate the following. Be sure to follow significant figure rules.
1.) 1.2 m + 2.35 m =
Ignore me I dont know what im doing.
The intermolecular forces between polymer molecules are strong, so these substances are __________ at room temperature. What word completes the sentence?
Answer:
I want to say
Stronger
how many grams of baf2 are dissolved in 75.0 ml of a saturated solution of baf2? ksp = 1.00 x 10-6
Using the solubility product of the saturated solution, the mass of BaF2 dissolved is 0.083 g.
The equation of the reaction is obtained from;
BaF2(s) ⇄ Ba^+(aq) + F^-(aq)
The concentration of the substance can be obtained from the Ksp as follows;
Ksp = [Ba^2+] [2F^-]^2
Ksp = 4x^3
x = ∛Ksp/4
x = ∛ 1.00 x 10-6/4
x = 6.3 x 10^-3 M
Given that;
mass/molar mass = concentration x volume
molar mass = 175 g/mol
concentration = 6.3 x 10^-3 M
volume = 75.0 ml or 0.075 L
Mass = ?
Mass = concentration x volume x molar mass
Mass = 6.3 x 10^-3 M x 0.075 L x 175 g/mol
Mass = 0.083 g
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F
norm
app
F
grav
F
fric
Which statement is true in this situation?
A. The size of Ffric is the same as the size of Fgrav-
B. The size of Fnorm is the same as the size of Ffric
C. The size of Ffric is the same as the size of Fapp:
D. The size of F
app is the same as the size of Fgrav
The statement is true in this situation is C. The size of Ffric is the same as the size of Fapp:
From the diagram, since the body is in equilibrium, the sum of vertical forces equals zero. Also, the sum of horizontal forces equal zero.
So, ∑Fx = 0 and ∑Fy = 0
Since Fapp acts in the negative x - direction and Ffric acts in the positive x - direction,
∑Fx = -Fapp + Ffric = 0
-Fapp + Ffric = 0
Fapp = Ffric
Also, since Fgrav acts in the negative y - direction and Fnorm acts in the positive y - direction,
∑Fy = Fnorm + (-Fgrav) = 0
Fnorm - Fgrav = 0
Fnorm = Fgrav
So, we see that the size of Fapp equals size of Ffric and the size of Fnorm equals the size of Fgrav.
So, the correct option is C
The statement which is true in this situation is C. The size of Ffric is the same as the size of Fapp.
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if a substance has a normal boiling point of 50 °c, what can you state about the vapor pressure of the same substance at 40 0 °c?
Why can the grasses now grow when they couldn’t earlier?
Grasses can grow where they could not earlier because the soil conditions, water volume, or rate of sunlight have evolved.
Each species of plant requires specific conditions to thrive. These conditions include:
Nutrients from the soil.SunlightSpecific amount of water.This implies that if the conditions for a specific species are not provided in terms of sunlight, radiation, and water, the plant will not grow in that specific zone. In the same way, if the conditions of a zone change and they are not suitable for a plant species the plant will grow even if this was not possible before.
This key idea is the reason why some plants including grasses can now grow in zones where they did not exist before. Some of the factors that have contributed to this are:
Fertilization: This provides soils with necessary nutrients.Climate change: This has affected climate patterns, and therefore it can increase or decrease radiation.Irrigation: This increases the amount of water available for plants.Learn more about grass in: https://brainly.com/question/3671945
Sources of error in colorimetry?
The elements fluorine (F), chlorine (Cl), and Iodine are all part of the same ____________________ on the periodic table.
Question 9 options:
group
period
Answer:
Halogen Family of elements
Explanation:
Group Seventeen
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State the given:
Moles of Sulfur = 5 moles
Molar mass of Sulfur = 32.06g/mol
Look through the formulas:
Moles = Mass/Molar Mass
Rearrange the equation:
Mass = Moles x Molar mass
Plug in your given:
5 moles Sulfur x 32.06g
1 mol
= 160.3g of Sulfur
The condition of acidosis can also cause ____________ because the higher H concentration diffuses to the ICF, pushing K towards the ECF.
Answer:
Hyperkalemia
Explanation:
The condition of acidosis can also cause Hyperkalemia because the higher H concentration diffuses to the ICF, pushing K towards the ECF.
how many moles of oxygen would you need to produce 4 moles of aluminum oxide? 4 Al + 3 O2 ----> 2 Al2O3
Answer:
6 moles
Explanation:
3 moles of O2 produce 2 moles of Al2O3 so in order to produce 4 moles pf AL2O3 you need 4 x 3 /2 moles of O.
How many moles are there in 10 dm3 of sulfur dioxide gas
Taking into account the room temperature and pressure, there are 0.4167 moles in 10 dm³ of sulfur dioxide gas.
RTP refers to Room Temperature and Pressure. Pressure is 1 atm and Temperature is 298K. In this case, one mole of any gas has a volume of 24 dm³ or 24,000 cm³. This volume is called the molar volume of a gas.
In other words, the molar volume (the amount of space occupied by one mole) of any gas is 24dm³ (1 mol of gas molecules occupies 24.0 dm³).
Therefore, the amount of volume occupied by any gas can be calculated by multiplying the number of moles of gas by 24dm³:
Volume = Moles of gas× 24 dm³
So, the number of moles can be calculated as:
Moles of gas= Volume÷ 24 dm³
In this case, you know that volume if sulfur dioxide gas is 10 dm³. So, replacing:
Moles of gas= 10 dm³ ÷ 24 dm³
Solving:
Moles of gas= 0.4167
Finally, there are 0.4167 moles in 10 dm³ of sulfur dioxide gas.
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https://brainly.com/question/23119191?referrer=searchResultsIn a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the final temperature reading two minutes later is 20 degrees Celsius.
1. What happened to the heat in the surroundings?
2. Did an endothermic or exother mic reaction occur
The reaction is endothermic because the temperature dropped from 28 degrees Celsius to 20 degrees Celsius.
Meaning of endothermic and exothermic reaction:An endothermic reaction is one in which heat is absorbed from the surrounding resulting in decrease in temperature while an exothermic reaction is one in which heat is evolved causing the temperature to rise.
In the particular context of this question, the reaction is endothermic because the temperature dropped from 28 degrees Celsius to 20 degrees Celsius. The heat in the surroundings decreased.
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how many atp are produced in the electron transport chain
Answer:
34 ATP
Explanation: