Answer:
A is the answer
A person on Earth would weigh a lot more on the sun due to increased gravity. The sun is a massive object as compared to the sun. It is assumed that the gravity must be a lot greater as well. It is the strong gravitational pull of the sun that keeps our planets from drifting off into space
Use the masses of the elements below to calculate the mass of 8.70 moles of H3M (the number at the bottom of
each square is the atomic mass of that element)
1
2
3
4
5
6
A
H
C
B
M
Sm
aragon
hillsdale
capuchino
mills
burlingame
san mateo
1.10
3.50
7.09
11.22
15.23
18.98
Given:
Wanted
Relationship: 1 mole H3M =
grams
Final answer
grams
yes use the masses of an element below calculate the mass of it 8.70 mole of each 3M
which would more easily give up electrons during bonding?
Li
Si
I
Answer:
Lithium, Li
Explanation:
Metallic elements are elements which form ions by loss of electrons. They are electropositive elements. During the formation of compounds, they easily give up or donate their electrons to other atoms to become positively charged ions. Examples of metals include, sodium, lithium, magnesium, etc
The ionization process of metals is generally shown below:
X ---> X+ + e-
Where X is a metal, and e- rare electrons
Non-metals are elements which form ions by gain of electrons. They are electronegative elements. During the formation of compounds, they accept electrons from electropositive elements to form negatively charged ions or anions. Examples of non-metals include oxygen, chlorine, iodine, etc.
The ionization process of non-metals generally, is shown below:
Y + e- ----> Y-
Semi-metals like silicon, usually form compounds by sharing of electrons with other elements.
What pressure, in atm, would be equal to 798 mmHg?
Answer:
1.05 atm
It should be 1 atm = 760 mm; therefore, 798 mm x (1 atm/760) = about 1.05 atm.
The value of pressure in atm that would be equal to 798 mmHg is 1.05 atmospheric.
What is pressure?Pressure is a physical quantity or a kind of force which is perpendicularly applied on the surface area of any object so that force is equally distributed on that surface.
Pressure will be maesured by various unit and have relation with one another.
As we know that, 1 atm = 760 mmHg
Or 1 mmHg = 1/760atm
Given quantity of pressure is 798 mmHg and we calculate this quantity by multiply this value by 1/760 and we get,
798 mmHg = 798mmHg × 1/760atm/mmHg = 1.05 atm
Hence required value of pressure is 1.05 atm.
To know more about pressure units, visit the below link:
https://brainly.com/question/17386864
Rayden is taking a Life science course in absence of Ms. Leesa and tells the students that Organelle X is where genetic information is stored.
Answer: good for him
Explanation: jk
its the dna which is in the NUCLEAS which is probably the answer
GOOD LUCK
A functional group is a specific arrangement of atoms in an organic compound that is acmpavle if characteristic reactions
Is this True or false
Does not having the word (chemical )before reactions make it false
Please help i would appreciate it
Explanation:
(a) a functional group is a special group of atoms or bonds in a compound that is responsible for the chemical reactions, behavior, and characteristics of that compound. (b) Functional group is present in both the compound is alcohol (-OH).
Functional groups are specific groupings of atoms within molecules that have their own characteristic properties, regardless of the other atoms present in a molecule. Common examples are alcohols, amines, carboxylic acids, ketones, and ethers.
Key Points
Functional groups are often used to “functionalize” a compound, affording it different physical and chemical properties than it would have in its original form.
Functional groups will undergo the same type of reactions regardless of the compound of which they are a part; however, the presence of certain functional groups within close proximity can limit reactivity.
Functional groups can be used to distinguish similar compounds from each other.
Key Terms
functional group: A specific grouping of elements that is characteristic of a class of compounds, and determines some properties and reactions of that class.
functionalization: Addition of specific functional groups to afford the compound new, desirable properties.
Calculate the mass (in g) of 2.8 X 10^22 H2O molecules.
Answer: wait im gonna search some info.
Explanation:I come back with an asnwer for you
You mix 35mL of 0.54M NaI with 14mL of 0.84M Pb(NO3)2. How many grams of the precipitate will be created?
Richard wrote a list of the advantages of using any one of the six simple machines. His list is below. Which statement about simple machines is not correct?
A.
Some simple machines produce an output force greater than the input force.
B.
Some simple machines produce an output force in a different direction than the input force.
C.
Some simple machines have a work output greater than the work input.
D.
Some simple machines increase the distance through which a force is applied.
Plss say just A,b,c, or d :/
Answer:
c
Explanation:
just took the test 100 on it the test is simple machines
Determine the AMOUNT OF NO2, LIMITING REACTANT, AND THE AMOUNT AND NAME OF EXCESS REACTANT.
10.00 g of O2 reacts with 20.00 g NO
The molar masses of O2, NO, and NO2 are 32.00 g/mol, 30.01 g/mol, and 46.01 g/mol, respectively
Answer:
balanced equation mole ratio 5 2 mol NO/1 mol O2
10.00 g O2 3 1 mol O2/32.00 g O2 5 0.3125 mol O2
20.00 g NO 3 1 mol NO/30.01 g NO 5 0.6664 mol NO
actual mole ratio 5 0.6664 mol NO/0.3125 mol O2 5 2.132 mol NO/1.000 mol O2
Because the actual mole ratio of NO:O2 is larger than the balanced equation mole
ratio of NO:O2, there is an excess of NO; O2 is the limiting reactant.
Mass of NO used 5 0.3125 mol O2 3 2 mol NO/1 mol O2 5 0.6250 mol NO
0.6250 mol NO 3 30.01 g NO/1 mol NO 5 18.76 g NO
Mass of NO2 produced 5 0.6250 mol NO2 3 46.01 g NO2/1 mol NO2 5 28.76 g NO2
Excess NO 5 20.00 g NO 2 18.76 g NO 5 1.24 g N
Explanation:
How many grams of carbon dioxide are produced when 255 grams of octane (C3H18) combust?
Answer:
787.3 g of CO₂
Explanation:
The combustion of octane is this one:
2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O
2 moles of octane react to 25 moles of oxygen in order to produce 16 moles of CO₂ and 18 moles of water.
The products in combustion reactions are always CO₂ and H₂O. The oxygen is always a reactant.
We convert mass to moles: 255 g . 1mol /114g = 2.24 moles
2 moles of C₈H₁₈ can produce 16 moles of CO₂
Then, 2.24 moles may produce (2.24 . 16)/2 = 17.9 moles of CO₂
We convert moles to mass:
17.9 mol . 44g/mol = 787.3 g of CO₂
How many grams of KBr is required to prepare 100 mL of
2.0 M KBr solution?
Answer:
23.8g
Explanation :
Convert 2.0M into mol using mol= concentration x volume
2.0M x 0.1L (convert 100mL to L since the units for M is mol/L)
= 0.2 mol
We can now find grams by using the molar mass of KBr
=119.023 g/mol (Found online) webqc.org
but can be be calculated by using the molecular weight of K and Br found on the periodic table
We can now calculate the grams by using grams=mol x molar mass
119.023g/mol x 0.2mol
= 23.8046 g
=23.8g (rounded to 1decimal place)
how to find resistance of a color code with 4 rings?
Answer:
its yellow
Explanation:
it's a constant law .... much explanation
from 0 to 9
we have
black .o
brown 1
red 2
orange 3
yellow 4
green 5
blue 6
violet 7
grey 8
white 9
The pH and pOH scales represent concentrations of [H3O+] and [OH−], respectively. What are the hydronium ion concentration and the hydroxide ion concentration of pure water at 25 °C?
Answer:n
Explanation:
Predict whether a reaction will occur when HClO and Sr(OH)2 solutions are mixed, if yes determine spectator ions in the ionic equation.
Answer:
[tex]ClO^-\\\\Sr^{2+}[/tex]
Explanation:
Hello there!
In this case, according to the reaction between hypochlorous acid and strontium hydroxide which yields stontium hypochlorite and water as a neutralization reaction:
[tex]2HClO(aq)+Sr(OH)_2(aq)\rightarrow Sr(ClO)_2(aq)+2H_2O(l)[/tex]
Thus, since HClO is a weak acid, it is not fully ionized so the complete ionic equation turns out to be:
[tex]2H^++2ClO^-+Sr^{2+}+2(OH)^-\rightarrow Sr^{2+}+2(ClO)^-+2H_2O(l)[/tex]
Whereas the spectator ions, which remain the same at both sides of the equation, are:
[tex]ClO^-\\\\Sr^{2+}[/tex]
Best regards!
can the density of a sample material be dependent on the amount of the material present
pleeeassee
Carbon has unique bonding characteristics that allow it to
A
form ionic bonds with any atom to form many different molecules.
B
resist bonding with other atoms and remain a pure element.
C
form chains or rings by bonding to itself and other atoms.
D
form ionic salts that make up half of the known salts on Earth.
I didn’t study for this lol if your answer correct I’ll mark ur answer brainliest
Answer:
3
Explanation:
3 is the answer is did this a little while ago
How long does cream of tartar activate
A gas is collected at 20.0 °C and 725.0 mm Hg. When the temperature is
changed to 0 °C, what is the resulting pressure?
Answer:
676mmHg
Explanation:
Using the formula;
P1/T1 = P2/T2
Where;
P1 = initial pressure (mmHg)
P2 = final pressure (mmHg)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information provided in this question;
P1 = 725.0mmHg
P2 = ?
T1 = 20°C = 20 + 273 = 293K
T2 = 0°C = 0 + 273 = 273K
Using P1/T1 = P2/T2
725/293 = P2/273
Cross multiply
725 × 273 = 293 × P2
197925 = 293P2
P2 = 197925 ÷ 293
P2 = 676mmHg.
The resulting pressure is 676mmHg
What other small steps can we take to save water ?
Answer:
Check your toilet for leaks. ...
Stop using your toilet as an ashtray or wastebasket. ...
Put a plastic bottle in your toilet tank. ...
Take shorter showers. ...
Install water-saving shower heads or flow restrictors. ...
Take baths. ...
Turn off the water while brushing your teeth. ...
Turn off the water while shaving.
Explanation:
Answer:
keeping the water clean
Explanation:
avoid dumping rubish in the water
What is the molar mass of CH 4 ? (C = 12.01g / m * o * l, H = 1.008g / m * o * l)
What is the role of Cl2 in the following
reaction?
CL + NaOH Nacl+ NaCO3+H2O
Answer:
Cl2 acts as an oxidizing agent
Explanation:
The balanced equation is
Cl2+NaOH⟶NaCl+NaClO3+H2O
Cl2 acts as a reactant in this chemical reaction
Cl2 receives one electron and thus reduces itself from Cl2 to 2 Cl−. This indicates that 2Cl- will oxidize some other element and hence Cl2 act as an oxidizing agent.
What bonds might form in a carbon atom with sp2 hybrid orbitals?
O A. four single bonds
OB. a double bond and two single bonds
O c. a triple bond and a double bond
OD. a triple bond and a single bond
A solution of aluminum chloride is mixed with a solution of potassium hydroxide to produce a precipitate of aluminum hydroxide and aqueous potassium chloride.
Find Balanced chemical equation
Find complete ionic equation
A gas has a pressure of 500.0 Torr at 35.0 °C. What is the temperature at
standard pressure?
Answer:
466.65 K
Explanation:
Using the formula of Pressure law,
P/T = P'/T'.................... Equation 1
Where P = Intial pressure of gas, T = Initial temperature of gas, P' = Final pressure of gas, T' = Final temperature of gas.
make T' The subeject of equation 1
T' = (P'T)/P................... Equation 2
From the question,
Given: P = 500 Torr = (500×133.322) N/m² = 66661 N/m², T = 35°C = (35+273) = 308 K, P' = 101000 N/m²( Standard pressure)
Substitute these values into equation 2
T' = (101000×308)/66661
T' = 466.65 K
What volume will 1000 grams of nitrogen dioxide occupy at 380 mmHg at 0°C
0.69(78)Explanation:
science helpppppppppppppppppppppppppppppppp
Answer: it should be 80g
Explanation:
Use the scenario to answer the following question.
A group of students working in a chemistry lab is planning a procedure to neutralize 25.0mL of 2.0 M hydrochloric acid (strong acid) with 1.0 M potassium hydroxide (strong base). In their procedure they plan on adding an equal volume of the base to the acid.
What would be the expected outcome of carrying out this step as planned?
A.
The resulting pH will be equal to 7 because a strong base will neutralize a strong acid.
B.
The resulting pH will be less than 7 because potassium hydroxide is less concentrated than the hydrochloric acid.
C.
The resulting pH will be greater than 7 because potassium hydroxide is less concentrated than the hydrochloric acid.
D.
The resulting pH will not be able to be determined because the concentrations of the acid and base are not the same.
The expected outcome of carrying out this step as planned is :
B. The resulting pH will be less than 7 because potassium hydroxide is less concentrated than the hydrochloric acid.
Acid and basesThe expected outcome of carrying out this step as planned is the resulting pH will be less than 7 because potassium hydroxide is less concentrated than the hydrochloric acid.
pH may be a degree of how acidic/basic water is.
The run goes from - 14, with 7 being unbiased. pHs of less than 7 demonstrate causticity, while a pH of more noteworthy than 7 demonstrates a base.
pH is truly a degree of the relative amount of free hydrogen and hydroxyl particles within the water
Thus, the correct answer is B.
Learn more about "Acids":
https://brainly.com/question/6872943?referrer=searchResults
How many electrons can be described by the quantum numbers n = 2,1 – 3?
Answer:
a maximum number of 10 electrons can share
Explanation:
How many electrons in an atom can have quantum numbers of N 3 and ML 2?
Therefore, a maximum number of 10 electrons can share these two quantum numbers in an atom.
A sample of three mixed gases is at 630.0 mmHg. If the partial pressure of
CO2 is 124.0 mmHg and the partial pressure of N2 is 160.0 mmHg, what is the
partial pressure of O2? *
A-914.0 mmHg
B-346.0 mmHg
C-284.0 mmHg
D-46.0 mmHg
Answer:
B-346.0 mmHg.
Explanation:
Hi there!
In this case, according to the Dalton's law, which explains that the total pressure of a gas mixture is calculated by adding up the partial pressure of each gas, we can set up the following equation for the mixture given here:
[tex]P_T=p_{CO_2}+p_{N_2}+p_{O_2}[/tex]
In such a way, for the required answer, it solve for the partial pressure of oxygen to obtain:
[tex]p_{O_2}=P_T-p_{CO_2}-p_{N_2}[/tex]
Thereafter, we plug in the known pressures to obtain:
[tex]p_{O_2}=630mmHg-124mmHg-160mmHg\\\\p_{O_2}=346mmHg[/tex]
And the answer is B-346.0 mmHg.
Best regards!