Answers
Answer:
D
Explanation:
John is not a very good businessman.
:D
Hopes This helps !!!
Related Questions
The earth’s _____ creates a cross-current motion that captures the north and south moving air creating a ___ _____?
ANSWER AND YOU WILL BE MARKED BRAINLIEST (NO FILES) :))
Answers
Answer:
deflection,Coriolis effect
hope this helps
Covalent bonding occurs when... a electrons are shared between atoms b cations attract to anions c protons fuse in the nucleus d electrons are transferred between atoms
Answers
Answer: Covalent bonding occurs when electrons are shared between atoms. The correct option is A.
Explanation:
When atoms form a bond by sharing one or more pairs of electrons the bond is referred to as a COVALENT BOND. This is so because CV there is a natural drive for atoms to attain the electronic configuration of Group 0 which has a completely filled outermost shell of eight electrons. The covalent bond usually occurs among non- metals. Example of covalent bonding is seen in the formation of chlorine and carbondioxide molecules. Chloride atom which contains seven electrons in its outermost shell shares an electron with another chloride atom to attain a filled outermost shell leading to the formation of a chlorine molecule.
The characteristics of a covalent compound includes:
--> they contain only molecules. There are no ions, hence they do not conduct electricity.
--> they dissolve in organic solvents. They are insoluble in water.
--> they have low melting and boiling points.
Explain using complete sentences as well as sketch a graph of the relationship between the following variables of a gas when all other variables are held constant:
pressure and volume
pressure and temperature
volume and temperature
Answers
Answer:
Pressure and volume relationship, Boyle's law
The relationship between pressure and volume of a gas is given by Boyle's law which states that at constant temperature, the pressure of a given mass of gas is inversely proportional to its volume
Mathematically, we have;
P ∝ 1/V
Please find attached the graph of the relationship between pressure and volume, created with MS Excel
Pressure and temperature relationship, Gay lussac's Law
The pressure of a given mass of gas is directly proportional with the absolute temperature of the gas, provided the volume remains constant
Mathematically, we have;
P ∝ T
Please find attached the graph of the relationship between pressure and temperature, created with MS Excel
Volume and Temperature relationship, Charles Law
The relationship between the volume of a given mass of gas and its pressure is given by Charles law, which states that the volume of a given mass of gas is directly proportional to its absolute temperature, given that the pressure of the gas is kept constant
Mathematically, we have;
V ∝ T
Please find attached the graph of the relationship between volume and temperature, created with MS Excel
Explanation:
How many molecules of fructose would you have if you have 0.7 moles of
fructose?
*
Answers
Answer:
4.214 × 10^23 molecules.
Explanation:
Number of molecules in a substance can be calculated by multiplying the number of moles in that substance by Avagadro's number, which is 6.02 × 10^23.
That is, no. of molecule = n × Avagadro constant
In this case, there are 0.7 moles of fructose. Hence;
number of molecules = 0.7 × 6.02 × 10^23
no. of molecule = 4.214 × 10^23 molecules.
Which of the following is NOT a type of mucle tissue?
Cardiac
Smooth
Striped
Skeletal
Answers
Answer:
Striped should be the answer
Which is the right answer
Answers
Answer:
NH3
Explanation:
there is one nitrogen and 3 hydrogen
Use the information provided in the table to
determine the K, for methylammonium ion, the
conjugate acid of methylamine.
X6.8 x 10-19
4.4 x 1010
2.8 x 109
2.3 x 10-11
Answers
Answer: D
Explanation:
2.3x10-11
Answer:
D. 2.3 x 10^-11
Explanation:
Look at the image below
The empirical formula of a compound is HC2CI and the g-molar mass is 182 What is the molecular formula ?
Answers
Answer:
tyr4v
Explanation:
hc2ci g molar mass 182 = hc2ci =200
Q.
.No.of valence electrons present in 4.2g of nitride ion (N^(3- are:
(a) 2.4times N
(b) 4.2times N
(c) 1.6times N
(d) 3.2times N
Answers
Answer:
if na is Avogadros number then number of vaclence electron in 4.2 g of nitride ions (N3-is.2.4Na. so the answer is 2.4 na
Explanation:
Mass N3- ion = 14 g/mol. So,
4.2 g X (1 mol/14 g) = 0.3 mol N3-
Number of N3- ions = 0.3 mol X 6.02 X 10^23 ions/mol = 1.8 X 10^23 ions
Each N3- ion has 8 valence electrons, so total number of valence electrons = 1.8 X 10^23 X 8 = 1.4 X 10^24 valence electrons.
hope it helps
What type of chemical reaction does this equation represent?
Ag2S + KCN --> AgCN + K2S
Answers
1. What two things reflect some of the incoming solar radiation back out into space?
Answers
Answer:
About 29 percent of the solar energy that arrives at the top of the atmosphere is reflected back to space by clouds, atmospheric particles, or bright ground surfaces like sea ice and snow
which statement best describes the difference between weather and climate
a) climate is about the hydrospace, weather is about autosphere
b) climate describes average temperature, weather describes many more factores
c) Climate is long periods of time, weather is short periods of time ( present day)
d) Climate describes conditions at sea level, weather describes conditions at different elevations
WILL MARK BRIANLIEST
Answers
Answer:
C
Explanation:
Brainliest
I tried my best
What is the molality of an acetic acid solution that contains 0.500 mol of HC2H3O2 (molar mass: 60g/mol) in 0.800 kg of water?
Answers
Answer: The molality of given acetic acid solution is 0.625 m.
Explanation:
Given: Moles of solute = 0.5 mol
Mass of solvent = 0.8 kg
Molality is the number of moles of solute present in a kg of solvent.
Therefore, molality of the given solution is calculated as follows.
[tex]Molality = \frac{moles}{mass of solvent}[/tex]
Substitute the values into above formula as follows.
[tex]Molality = \frac{moles}{mass of solvent}\\= \frac{0.5 mol}{0.8 kg}\\= 0.625 m[/tex]
Thus, we can conclude that the molality of given acetic acid solution is 0.625 m.
Which of the following relationships is true?
A. pH − pOH = 14
B. Ka × Kb = 1 × 10-14
C. pKa × pKb = 14
D. pKa × pKb = 1 × 10-14
Answers
Answer:
D. pKa × pKb = 1 × 10-14
Explanation:
hope this helps, if not, give me time to edit
Answer:
B. Ka × Kb = 1 × 10-14
Explanation:
yw
Mg + 2HCl → MgCl2 + H2
How many grams of Mg is needed to produce 100 g of H2?
Answers
H2
n=m÷Mr
n=100×2
n=200 moles
Mole ratio
Mg : H2
1 : 1
x : 200
cross multiply= x=200
Mg
make m the subject
m=n×Mr
m=200×24.305
m=4861 g
Butene would have __ carbon atoms and a __ bond
Answers
Answer:
Butene would have 4 carbon atoms and a double bond.
Explanation:
The chemical formula for butene is C[tex]_4[/tex]H[tex]_8[/tex]
Here is an image of it.
Answer:
we have
But :4
bond :ene :2
So
Butene would have _4_ carbon atoms and a _2_ bond
A sample of nitrogen gas in a 750.0 mL sealed flask exerts a pressure of 206.58 kPa. Calculate the temperature of the gas if the flask contains 3.00 grams of gas.
Answers
Answer:
T= -99 °C.
Explanation:
Hello there!
In this case, according to the given description of the problem, it is possible for us to analyze this problem via the ideal gas equation:
[tex]PV=nRT[/tex]
However, we first calculate the moles in 3.00 grams of nitrogen gas (28.01 g/mol):
[tex]n=3.00g*\frac{1mol}{28.01g}=0.107mol[/tex]
Next, we solve for the temperature as shown below:
[tex]T=\frac{PV}{Rn}[/tex]
Next, we convert the given pressure and volume to atm and L to obtain:
[tex]T=\frac{(206.58atm/101.325)*750.0L/1000}{0.08206\frac{atm*L}{mol*K}*0.107mol}\\\\T=174.15K-273.15\\\\T=-99\°C[/tex]
Regards!
What is the amount of space that a material takes up ?
Answers
volume.
The amount of space a material occupies is its volume.
Mass is measured using a scale. Volume is the amount of space matter takes up. Volume can be measured by multiplying the length, width, and height of an object, or by using a measuring cup and seeing how the measurement of water changes in a cup. Density is the amount of matter an object has in a certain space.
Answer:
Volume
Explanation:
Mass is measured using a scale. Volume is the amount of space matter takes up. Volume can be measured by multiplying the length, width, and height of an object, or by using a measuring cup and seeing how the measurement of water changes in a cup. Density is the amount of matter an object has in a certain space.
What happens when a current is applied to two electrodes immersed in pure water?
A. No electrolysis occurs, and current does not flow.
B. Oxygen, but not hydrogen, is released as a gas.
C. Electrolysis occurs, releasing oxygen and hydrogen gas.
Answers
Answer:
b
Explanation:
Gucci ghhvhjhsgjjn hvh
Answer:
B
Explanation:
is NaHCO3 a binary compound
Answers
Answer:
No
Explanation:
Binary compounds contain only 2 distinct elements.
For example magnesium oxide MgO is a binary compound.
NaHCO3 contains 4 distinct elements.
A gas with a volume of 250 mL at a temperature of 293K is heated to 324K. What is the new volume of the gas?
Answers
Answer:
you can simply answer vl/t1=v2/t2
What is the electron configuration of the sodium atom after it loses an electron?
Multiple choice question.
A)
1s22s22p6
B)
[He]2s22p5
C)
1s22s22p63s1
D)
1s22s22p63s1
Answers
Answer:
the answer is A 1s22s22p6
which type of bonding involves sharing valence electrons, but the valence electrons aren't confined to a specific region between atoms and instead exist throughout the crystal structure of the material?
Answers
Answer:
metallic bonding
Explanation:
Metallic bonding is bonding where electrons exist as "sea of electrons" meaning they can go anywhere in the structure and are not localized in specific place like covalent bonds are sometimes.
what does the prefix non-represent?
1.) 9 carbon atoms, only
2.) 9 carbon atoms and 20 hydrogen atoms
3.) 9 carbon atoms and 18 hydrogen atoms
4.) 9 carbon atoms and 16 hydrogen atoms
Answers
Answer:
1.) 9 carbon atoms, only
Explanation:
Prefix: non- simply means 9.
Suffix: -ene means double bond, -yne means triple bond, and -ane means single bonded carbons.
Answer:
1st option
Explanation:
it means 9 carbon atoms omly
what are 2 factors that impact the flow of energy into and out of earths systems
Answers
Answer:
Solar energy causes evaporation; uneven heating of the Earth causes air masses to move; Coriolis forces help storms to take shape; and gravity makes rivers flow downhill. Another relevant factor is the high heat capacity (or specific heat) of water.
Explanation:
hoped this helped;)
If we were to add a piece of solid Cu to an aqueous solution (in water) of silver nitrate, the Silver would be replaced in a single replacement reaction forming aqueous copper (II) nitrate and solid silver. How much silver, in grams, is produced if 15.00 grams of Cu is added to the solution of silver nitrate
Answers
Answer:
50.9 g of Ag
Explanation:
Reaction is:
Cu (s) + 2AgNO₃(aq) → 2Ag (s) + Cu(NO₃)₂ (aq)
1 mol of Cu react to 2 moles of silver nitrate in order to produce 2 moles of solid silver and 1 mol of copper (II) nitrate.
We assume, the silver nitrate in excess.
We determine moles of copper → 15 g . 1mol / 63.55 g = 0.236 moles
Ratio is 1:2. 1 mol of copper produce 2 moles of silver
0.236 moles of Cu will produce (0.236 . 2) / 1 = 0.472 moles of Ag
We deterine mass of silver:
0.472 mol . 107.87 g /mol = 50.9 g
The combustion of fuel oil to heat a home is an example of a/an???????
Answers
Answer:
Is it multiple choice? you didnt have any choices
Explanation:
Answer:
exothermic reaction
Explanation:
3.) If you have 784 g of Sulfuric Acid (H2SO4), how many moles of Sulfuric
Acid is that? *
Answers
Answer:
98.07848
Explanation:
I assume you are converting between grams H2SO4 and mole. You can view more details on each measurement unit: molecular weight of H2SO4 or mol This compound is also known as Sulfuric Acid. The SI base unit for amount of substance is the mole.
Answer:
8moles
Explanation:
n=m/GFM
n=784/98.02
n=7.998
n=8moles
A neutral atom has a ground state electron configuration of 1s22s22p63s2.The neutral atom becomes an ion during a chemical reaction.Which is the most likely charge of the ion
Answers
Answer:
+2
Explanation:
the atom will acquire the noble gas configuration if it loses 2 electrons, becoming a divalent cation
What color does blue brown and red make
Answers
Answer:
dark brown with a hint of purple
have a good day :)
Explanation: