.......................yes...............ofc.......
How much heat must be added to a 12.75 g sample of gold to increase its temperature
from 32.5°C to 85.5°C? The specific heat of gold is 0.13 J/gºC.
Report your answer with the proper number of SF with a space between your numeral
answer and units.
Answer: This is a link to all of the awsers
https://pshs.psd202.org/documents/ssafe/1552416190.pdf
Explanation:
11. How many moles of O2 can be produced by letting 12.00 moles of
KCIO3 react?
2KCIO2 → 2KCI + 30,
A. 18 mol 02
B. 36 mol 02
C. 1.5 mol 02
D. 6 mol 02
Answer:
Molarity of the solution = 0.08 M
Further explanation
Molarity is a way to express the concentration of the solution
Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution
Where
M = Molarity
n = Number of moles of solute
V = Volume of solution
0.5 lb=226,796 g
MW silver nitrat - AgNO₃ = 169,87 g/mol
mol AgNO₃ :
Molarity :
a large molecule made up of smaller molecules called amino acids
ATP
carbohydrate
lipid
protein
phospholipid
nucleic acid
Answer:
Protein
Explanation:
Which word is described by this description?
A tool scientists use to measure earthquake activity.
A shield
B magma chamber
C seismograph
D Richter scale
The change in speed that could occur in 4 seconds in an object with an acceleration of 6 m/s/s.
Answer:
24m/s
Explanation:
a=change of v/change of t
6m/s^2=v/4s
multiply both sides by 4s
v=24m/s
The pressure on 30 milliliters of an ideal gas increases from
760 torr to 1520 torr at constant temperature. The new volume is
V1 = 30 mL
P1 = 760 torr
P2 = 1520 torr
V2 = ?
applying Boyle's Law
P1*V1 = P2*V2
760 torr * 30 mL = 1520 torr * V2
V2 = 760 torr * 30 mL / 1520 torr
( C ) is correct
What is the answer for 250 K = ? °C
Answer:
This is your answer ☺️☺️☺️
Answer:
-23.15
Explanation:
What is the last metamorphic rock
before the rock starts to melt and turn
back into magma/lava
Answer:
Explanation:
marble perhaps
10. Lead nitrate solution mixed with sodium sulfate solution forms lead sulfate as a
precipitate.
Pb(NO3)2+ Na2SO4-
PbSO4+ 2NaNO3
In an experiment, the theoretical yield of lead sulfate for this reaction was 2.85 g.
In the experiment only 2.53 g of lead sulfate is obtained.
Calculate the percentage yield of lead sulfate in this experiment. * IT
Answer:
88%.
Explanation:
The percentage yield of lead sulfate in this experiment is 88% if 2.53 is divided by 2.85 and multiply by 100. The percentage yield can be calculated when the experimental yield is divided by theoretical yield and then multiply by 100. The percentage yield tells us about the actual yield that is gained in the end of experiment which is lower than theoretical yield.
List the stages of the Flowering Plant Life Cycle starting with the seed
Which of the following general trends are true for the atomic mass of elements in the periodic table?
1. The atomic mass is usually a decimal number.
II. The atomic mass is always smaller than the atomic number.
III. The atomic mass increases from top to bottom down a group.
IV. The atomic mass increases from left to right across a period.
HELP PLEASE THERE IS NO PICTURE PLZ JUST LEAVE THE ANSWER!!
Answer:
D. the atomic mass increases from left to right
Explanation:
PLEASE
Why don't the particles in a solid move past one another?
A. They have no motion and cannot even vibrate in place.
B. They don't have enough energy to overcome the attractions
between them.
C. They bounce off the walls of their container and back into place.
D. They move independently of one another.
Answer:
B. They don't have enough energy to overcome the attractions between them.
Answer:They don't have enough energy to overcome the attractions
between them.
Explanation:
A. They have no motion and cannot even vibrate in place.
B. They don't have enough energy to overcome the attractions
between them.
C. They bounce off the walls of their container and back into place.
D. They move independently of one another.
question, if thallium (atomic number 81) has an effective nuclear charge of 3+, how many core electrons does thallium have? is it 78?
Answer:
Yes it is 78 because it has lost three electrons and it has a positive nuclear charge
Balance the following chemical equation
Mg + O₂ → MgO
Answer:
2Mg + O₂ → 2MgO
Explanation:
Meiosis does PMAT twice! That means there is prophase I and prophase II. There is metaphase I and metaphase II. If the cartoon below has chromosomes in the middle of the cell, how would you know whether it was in metaphase I or metaphase II?
Answer:
- there are homologous chromosomes in the middle of the cell (metaphase I)
- there are sister chromatids in the middle of the cell (metaphase II).
Explanation:
Choose all the materials that S-waves cannot travel through.
-water
-solid rock
-sand
-molten rock
-gas
Answer:
water
Explanation:
liquid don't have any shear strength and so a shear wave cannot propagate through a liquid.
61.3 g of dinitrogen tetraoxide will decompose into how many grams of NO2? (brainliest answer if you help with both the questions please)
Answer:
12.56 moles
Explanation:
Who coined the term "ridgeology"?
Answer:
David R. Ashbaugh
Explanation:
David R. Ashbaugh is a Canadian police officer known for his extensive research on the friction ridge identification, introducing for the first time the use of the term ridgeology in forensic identification and the ACE-V methodology.
In which orbitals would the valence electrons for selenium be placed ?
Answer:
Valence electrons of selenium will be placed in s and p-orbitals.
What is the partial pressure of hydrogen gas in a mixture of hydrogen Nitrogen, and helium if the total pressure is 700 partial pressure is 155 mmHg, and the partial pressure of nitrogen is 265 mmHg?
there are 3.0 g of NO and 3.0 g of CO reacting. what is the limiting reactant ?
Answer:
NO will be the limiting reagent.
Explanation:
The balanced equation is:
2 NO + 2 CO → N₂ + 2 CO₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
NO: 2 molesCO: 2 molesN₂: 1 moleCO₂: 2 molesBeing the molar mass of each compound:
NO: 30 g/moleCO: 28 g/moleN₂: 28 g/moleCO₂: 44 g/moleThen by stoichiometry the following quantities of mass participate in each reaction:
NO: 2 moles* 30 g/mole= 60 gCO: 2 moles* 28 g/mole= 56 gN₂: 1 mole* 28 g/mole= 28 gCO₂: 2 moles* 44 g/mole= 88 gThe limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.
To determine the limiting reagent, you can use a simple rule of three as follows: If 56 grams of CO react with 60 grams of NO, 3 grams of CO react with how much mass of NO?
[tex]mass of NO=\frac{3 grams of CO*60 grams of NO}{56 grams of CO}[/tex]
mass of NO= 3.21 grams
But 3.21 grams of NO are not available, 3 grams are available. Since you have less moles than you need to react with 3 grams of CO, NO will be the limiting reagent.
How do offspring inherit their traits?
a. Spiders have genes!
b. The Gene Fairy gives an offspring their genes under their pillow
c. Their parents share 1 gene each to the offspring's DNA.
d. Offspring only get their traits from one parent.
Answer:
Their parents share 1 gene each to the offspring's DNA
The balanced chemical equation for the reaction of nitrogen (N2) and hydrogen (H) to form ammonia (NH3) is given below.
N2+ 3H2 + 2NH3
How many grams of hydrogen would be to react with 14.0 g of nitrogen?
Answer:
V= 33.6L
Explanation:
The reaction between hydrogen and nitrogen is
3H2(g) + N2(g) + 2NH3(g)
I can't leave till I answer please help!!
Answer:
The answer is 2 all you do is divide the 6.02 and 3.01 and you get 2
On earth what is the main force that resists all motion?
Answer: Friction
Explanation: Friction is a force that opposes motion. When two objects are in contact, friction is acts in a direction opposite to the motion of the object. Please give me brainliest!!!!!!!
Answer: friction: The resistance an object meets when moving over a surface or through a gas or liquid; it is the force that resists the motion of two surfaces that are touching each other.
Explanation:
Student uses a magnet to move 0.0 25 KG metal box the magnet exerts a force of 5N which causes the ball to begin moving what is the acceleration of the ball when it begins to move
Answer: 200 m/s2
Explanation:
how does wind energy combined with machines cause a sailboat to move?
marking as brainliest
Answer:
The wind pushes the sails from behind, causing the boat to move forward.
Answer:
Wind energy obtained by the machine is converted into kinetic energy as it functions and thus enabling the boat to move.
Together, the forces of drag, from the water, and the pressure from the wind against the sail itself push the craft forward. Angling too sharply into the wind causes the forces on the boat to become unbalanced, and moves the boat sideways in the water.
Using the fact that at 0.10 M, the absorbance was 0.357; and at 0.20 M, the absorbance was 0.714, the absorptivity (slope) is
Blank 1
(answer to 2 dec places). Using your absorptivity, if an absorption of 0.250 is measured, the concentration is
Blank 2
M (answer to 2 dec places)
Answer:
The answer is "3.57 and 0.07".
Explanation:
Using the slop formula:
[tex]=\frac{n_2-n_1}{n_2-n_1}\\\\ =\frac{0.714-0.357}{0.20-0.10} \\\\ = ABSORPTIVITY, \ \ a=3.57 \\\\A= a\times b \times c[/tex]
Given:
[tex]A=0.250[/tex]
length path [tex]b=1[/tex]
from calibration it is found that
[tex]a=3.57\\\\consentation \ c=\frac{A}{a\times b} \\\\C=\frac{0.250}{3.57\times 1}[/tex]
[tex]=0.07 \ M[/tex]
Help Pls pls I will give brainlist
PLZ help me out!
Which changes are environmental effects of farming?
Select ALL correct answers.
(A.) increased carbon dioxide levels
(B.) habitat loss
(C.) soil erosion
(D.) desert formation
Answer:
the answer is C, B, and D
Explanation:
I took the test and got it right
Habitat loss and Soil erosion are environmental effects of farming and the correct options are option B and C.
What are Environmental effects of farming?
Environmental changes are likely to affect agricultural production over the next decades. The interactions between environmental change, agricultural yields and crop quality, and the critical pathways to future diets and health outcomes are largely undefined.
Agriculture contributes to a number larger of environmental issues that cause environmental degradation including: climate change, deforestation, biodiversity loss, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.
Therefore, Habitat loss and Soil erosion are environmental effects of farming and the correct options are option B and C.
Learn more about Environmental effects of farming, here:
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