Answer:
Metamorphic rock
Explanation:
Answer:
A. Metamorphic rock
Magnesium reacts with the oxygen in the air to form magnesium oxide. If 35 g of O2 was used in the reaction. How many Liters of O2 were present at 301K and a pressure of 1.35 atm?
Answer:
20.02 Liters
Explanation:
Mass = 35g
Volume = ?
Temperature = 301K
Pressure = 1.35 atm
The relationship between the quantities is given as;
PV = nRT
n = mass / Molar mass = 35 / 32 = 1.09375 mol
V = nRT / P
V = (1.09375 * 0.0821 * 301) / 1.35
V = 20.02 L
10. The electronic configuration of two elements X and Y are given below:
Зр
An
8p
compound.
Answer:
Pppppppp pppppppp pppppppp pppppppp
What is the Arrhenius definition of an acid?
a. A substance that increase H3O+ concentration when it is dissolved in water.
b. A substance that increases OH- concentration when it is dissolved in water.
c. A compound that donates protons.
d. A compound that accepts protons.
Answer:
a) A subtance that increase H3O+ concentration when it is dissolved in water.
Explanation:
Arrhenius acid: any species that increases the concentration of H+ ions (or protons) in an aqueous solution.
Arrhenius base: any species that increses the concentration of OH- in an aqueous solution.
Brønsted-Lowry acid: any species that donates protons.
Brønsted-Lowry base: any species that is accepts protons.
A chemist found a 60.00 gram sample containing copper and oxygen. Given the following percent composition, what is the mass of copper in the sample?
Copper- 57.08 %
Oxygen- 42.9296
choose an answer:
O 0.5708 g Cu
o 25.02 g Cu
34.25 g cu
63.5 g Cu
List two things in your environment that your body would need to adjust to
Answer:
Temperature & Humidity
Explanation:
If the body could not adapt to these changes, we wouldn't be able to live all over the planet; from the equator up to the polar caps.
A group of students collects data to determine whether compounds were ionic or covalent. They placed each compound in a small bowl and
stuck two open ends of a battery powered circuit in the compound
Answer:
The Answer is Yes, as all of these compounds are covalent since they are not conductive.
Explanation:
.
According to the concept of conduction, only ionic compound can conduct electricity that in aqueous state.
What is conduction?Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.
In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules .
When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state conduction 2) transient conduction.According to the type of energy conduction is of three types:
1) heat conduction
2) electrical conduction
3)sound conduction
Learn more about conduction here:
https://brainly.com/question/12136944
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Grams to Grams
1N2 + 3H2 -->2NH3
If you produced 34.06g of NH3 assuming excess N2 how many grams of H2 was used?
Answer:
grams H₂(g) = 6.11 grams H₂(g) used
Explanation:
Convert all given values to moles (if not already in moles), solve by rxn ratios and then convert moles to needed dimensions.
N₂(g) + 3H₂(g) => 2NH₃(g)
excess ? 34.6g/17g/mole = 2.04 moles
moles of H₂(g) needed = 3/2(2.04)moles = 3.05 moles H₂(g)
grams H₂(g) = 3.05 moles x 2 grams/mole = 6.11 grams H₂(g)
HELP FAST!!!
Compared with intelligence sailors, space operations specialists are which of the following?
more involved in tracking targets
more involved in aligning communications systems
more involved in disseminating intelligence results
more involved in analyzing classified material
Answer:
the fourth one I think....m
Explanation:
tfffffdd
The answer is:
more involved in aligning communications systemsExplanation:
A space operations specialist tracks, monitors, and operates spacecraft and satellites. The specialist aligns ground, spacecraft, and satellite communications systems to provide accurate data. (I took the course, I know.)
Does the Sun or the Moon have a greater influence on the high and
low tides of Earth's bceans? Why?
Explanation: Because ocean tides are the effect of ocean water responding to a gravitational gradient, the moon plays a larger role in creating tides than does the sun. But the sun's gravitational gradient across the earth is significant and it does contribute to tides as well.
ammonia NH3 percentage composition
Answer:
82.24% percent composition of N and 17.76% percent composition of H .
Explanation:
what is the electronic configuration of the atom x
Answer: K L M. 2 8 6.
Explanation:
Calculate the quantitative concentration of HCl in the solution if in the reaction of 500 cm3 the solution with AgNO3 produces 0.7 g of AgCl AgNO3 + HCl -------> AgCl + HNO3
Answer:
9.77x10⁻³M HCl
Explanation:
Assuming the solution of AgNO₃ is in excess:
Based on the chemical equation:
AgNO₃ + HCl → AgCl + HNO₃
We must find the moles of AgCl that will be produced. With the moles and knowing 1 mole of AgCl is produced from 1 mole of HCl we can find the moles of HCl and its concentration as follows:
Moles AgCl -Molar mass: 143.32g/mol-:
0.7g AgCl * (1mol / 143.32g) = 4.88x10⁻³moles AgCl = Moles HCl
As the volume of the solution is 500cm³ = 0.500L, the concentration of HCl is:
4.88x10⁻³moles HCl / 0.500L =
9.77x10⁻³M HClammonia is poisonous or not
Answer:
it is actually corrosive
Explanation:
meaning it can cause burning of eyes, nose, throat and respiratory tract and can result in blindness, lung damage or even worst death
What is the change in temperature of 150.0 g of chloroform if it absorbs 1000.0 joules of heat, and the specific heat of chloroform is 0.96 J/g0C?
Answer:
ΔT ≈ 7°C (1 sig-fig)
Explanation:
Q = mcΔT => ΔT = Q/mc = 1000J/150g·0.96j·g·°C = 6.94°C ≈ 7°C (1 sig-fig)
What is the mass of H2O
Answer: 18.01528 g/mol
Explanation:
The atomic mass of hydrogen is 1.00794 g/mol.The atomic mass of water is 15.9994 g/mol.So, the mass of water is 2(1.00794)+15.9994 = 18.01528 g/mol
gallium (III) carbonate formula
PLEASE HELP WILL GIVE BRAINLIEST
why does the tenpature change?
what are examples of natural production (not humans)?
what is the atomosephere?
PLEASE WRITE ONE PARAGRAPH FOR EACH QUESTIOIN
Answer:
why does the temperature change?
Daily air temperatures at Earth's surface are controlled by the incoming and outgoing energy. During the day, the air temperature increases as energy gains exceed the energy lost from Earth's surface. Throughout the night, the air temperature decreases as Earth's surface loses more energy than it receives.
What are examples of natural products?
Classes. The broadest definition of natural product is anything that is produced by life, and includes the likes of biotic materials (e.g. wood, silk), bio-based materials (e.g. bioplastics, cornstarch), bodily fluids (e.g. milk, plant exudates), and other natural materials (e.g. soil, coal).
What is the atmosphere?
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction.
Explanation:
I hope this helps!!
The change in mass during a nuclear reaction is given
by which equation?
Select one:
A
B
C
D
Answer:c
Explanation:
c
Which group would we find the element of this
atom in?
group 8
group 2
group 6
group 5
PLEASEEEE HELP URGENTTTT
Answer:
i don't see the question
Explanation:
1 point
Item 3 is unpinned. Click to pin.
Which of the terrestrial planets has the densest atmosphere?
Earth
Mars
Mercury
Venus
Venus. It's got the thickest and densest atmosphere of the terrestrial planets.
Answer:
venus
Explanation:
took the test
Different solutions of salt X are made up. What volume of: a) a 4 mol/dm³ solution contains 2 moles of X? b) a 6 mol/dm³ solution contains 0.03 moles of X?
Answer:
a. 0.5dm³
b. 5x10⁻³dm³
Explanation:
a. A solution that is 4mol/dm³ contains 4 moles in 1dm³. The volume that contains 2 moles is:
2 moles * (1dm³ / 4mol) =
0.5dm³b. And for the 6 mol/dm³ containing 0.03moles:
0.03 moles * (1dm³ / 6mol) =
5x10⁻³dm³Oxygen Gas (O₂)
A. 2 atoms of oxygen
B. 2 atoms of hydrogen
C. 3 atoms of oxygen
D. 1 atom of oxygen
If you have 1.8 moles, how many atoms would you have?
Answer: 1.08×10^24 atoms
Fe,0, is an example of
Answer:
it is the example of molecules
Which of the following does not describe natural migration?
Pls I really need help
Answer:
I think its learned behavior
Explanation:
because animals don't learn how to migrate, they just know already.
The weight of 112 liters of carbon dioxide at STP would be
44.09.
True or false?
Answer:
False
Explanation:
Its false
When K2Cr2O7 is cooled from 80oC to 20oC, how much solute will precipitate out of the solution?
Answer:
The amswer to the question is A
7. How many grams are in 1288 L of CO2 ?
Answer:
56684.236000000004
Explanation:
If one molecule of glucose (C6H12O6) reacts completely with three molecules of oxygen (O2) what is the TOTAL number of atoms that will be in the products
Answer:
30 atoms.
Explanation:
Based on law of conservation of proportion the atoms we have in reactants = atoms we have in products.
One molecule of glucose contains 6atoms of C, 12 atoms of H and 6 atoms of O, that is:
6+12+6 = 24 atoms
And 3 molecules of Oxygen are 6 atoms. The total atoms in reactants are:
24+6 = 30 atoms = atoms in products
Answer: It's 30 atoms.
Explanation: Just did it on USA Test Prep. lol