Answer:
853.15 L
I hope This is Right!
Apologies if it's not :(
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
How many particles are in 5.00 grams of nitric acid?
Answer:
0.0500
Explanation:
What do you already know about the structure of a water molecule?
Answer:
The key to understanding water's chemical behavior is its molecular structure. A water molecule consists of two hydrogen atoms bonded to an oxygen atom, and its overall structure is bent. This is because the oxygen atom, in addition to forming bonds with the hydrogen atoms, also carries two pairs of unshared electrons
Explanation:
Hope it helps
Why does air with higher amounts of water vapor have a lighter density?
Answer:
moist air is less dense than dry air because water has a lower molecular weight than nitrogen and oxygen
Answer:
Water vapor is a relatively light gas when compared to diatomic Oxygen and diatomic Nitrogen. Thus, when water vapor increases, the amount of Oxygen and Nitrogen decrease per unit volume and thus density decreases because mass is decreasing.
during the combustion of methane (CH4), one mole of methane gas combines with two moles of oxygen gas (O2) to produce one mole of carbon dioxide gas (CO2) and two moles of water vapor. Which of the following chemical equations correctly represents the combustion of methane described above?
a)CH4(g) + 2O(g) ↔ CO2(g) + 2H2O(g)
b)CH4(g) + 2O(g) ↔ CO(g) + 2H2O(l)
c)CH4(g) + 2O2(g) ↔ CO2(g) + 2H2O(g)
d)CH4(g) + 2O2(g) ↔ CO(g) + 2H2O(l)
Answer:
a) cH4(g) +2O(g)__ CO2(g) +2H2O(g)
I hope this help
Calculate the reaction rate given the following:
After 2 minutes (120 seconds), the concentration of a product was measured to
increase from 0.0012 M to 1.48 M.
1.48 M/s
0.0123 M/s
0.0012 M/s
-0.0123 M/s
Answer:
0.0123 M/s
Explanation:
The reaction rate is the rate at which the reaction takes place and results in an increased concentration of the products. The rate of the reaction is 0.0123 M/s.
What is the reaction rate?
The reaction rate is the increase of the concentration of the product with respect to time in seconds. The rate of reaction is given by,
[tex]\rm rate = \rm \dfrac {\Delta C}{\Delta t}[/tex]
Given,
Change in product concentration = 1.478
Time period = 120 seconds
Substituting values in the above equation:
[tex]\begin{aligned} \rm rate &= \rm \dfrac {\Delta C}{\Delta t}\\\\& = \dfrac{1.478}{120}\\\\&= 0.0123 \end{aligned}[/tex]
Therefore, option B. 0.0123 M/s is the reaction rate.
Learn more about reaction rate here:
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science question. Can you also tell me what weight has to do with the acceleration?
If 1.0 mole of C8H18 are available to completely react
with enough O2, how many moles of H20 can be produced?
Answer: 1 mol C8H18 produces 9 mol H2O
Explanation: reaction : C8H18 + 12.5 O2 ⇒ 8 CO2 + 9 H2O
10 points
What is the molar mass of argon?
Answer:
39.948 u
Explanation:
2 spaceships are in deep space. The distance between the centers of mass of the two spaceships is 300 m, and the force between them is 5.51×10^-7N. If one spaceship has a mass of 24,000 kg, what is the mass of the other spaceship?
Answer:
Mass of the second spaceship is 3.10 × 10⁴ kg 0r 31000 kg
Explanation:
From Newton's law of universal gravitation, the force of attraction , F, between two bodies is directly proportional to the product of their masses and inversely proportional to the square root of the distance between them.
F = Gm₁m₂/d²
m₁ = 24000 kg
m₂ = ?
d = 300 m
F = 5.51 × 10⁻⁷ N
Gravitational constant, G = 6.67 × 10⁻¹¹ N.m²/kg²
Making m₂ subject of the formula : m₂ = F × d² / G × m₁
m₂ = 5.51 x 10⁻⁷ × 300 × 300 / 6.67 × 10⁻¹¹ × 24000
m₂ = 3.1 × 10⁴ kg
Therefore, Mass of the second spaceship is 31000 kg
What molecules would you expect to find in air
Answer:
The air in the atmosphere consists of nitrogen, oxygen, which is the life-sustaining substance for animals and humans, carbon dioxide, water vapour and small amounts of other elements (argon, neon, etc.). Higher in the atmosphere air also contains ozone, helium and hydrogen.
Explanation:
Answer:
nitrogen, oxygen, carbon dioxide, water vapour, ozone, helium, and hydrogen.
Explanation:
Identifying Variables in the Effect of Type of Material on
Absorption Experiment
Answer the questions using the drop-down menus.
Which is the independent variable in this experiment?
Which is the dependent variable in this experiment?
Which is a controlled variable in this experiment?
In Absorption Experiment,
Water location is the independent variable in this experiment.
Room Temperature in the material is dependent variable in this experiment.
Type of a material is a controlled variable in this experiment.
What is Absorption Experiment ?Absorption experiment is nothing but the experiment of absorption of water in a material (sponge).
Experiment requires vessel, water and sponge.
Processor - take a vessel, pour water into it and dip sponge. take out the sponge. After taking of out sponge, water appears to be decreased from the vessel and sponge gets heavier. When we squeeze the the sponge, water drops down. It is because of water is absorbed by the spouge.
There are number of pores in the sponge, which absorbs the water.
Water location is the independent variable.
In this experiment Room Temperature is dependent variable in this experiment rate of absorption increases with increase in the temperature. decrease in the temperature cause to solidify the water. Type of a material is a controlled variable, we can change type of the material.
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#SPJ7.
A balloon takes up 625 L at 0°C. If it is heated to 80°C, what will its new volume be?
Answer:
Me gusta tu corte G
Explanation:
What are substances that cannot be broken down into simpler substances?
a. elements
b.compounds
c. molecules
d.protons
Answer:
Elements
Explanation:
Elements cannot be broken down into a simpler substance
if you help me, you are the best
Answer:
The following numbers are true for protons:
2.
5.
7.
Explanation:
I know for a fact that Protons have a positive charge
they are located inside of the nucleus
Go.ogle says that they aren't involved in bonding
And it says that it has a mass of one
I hope this helps chu <3
If the energy of a photon of light is 3.37 x 10–19 J, what is the frequency of the light? A. 1.12 x 10–27 s –1 B. 8.90 x 1026 s –1 C. 5.09 x 1014 s –1 D. 6.70 x 10–44 s –1 E. 1.01 x 10–10 s –1
Answer:
The appropriate alternative is option C "[tex]5.09\times 10^{14} \ s[/tex]".
Explanation:
The given value is:
Energy of photon,
E = [tex]3.37\times 10^{-19} \ J[/tex]
As we know,
h = [tex]6.626\times 10^{-34} \ Js[/tex]
Now,
The frequency of the light will be:
⇒ [tex]E=hv[/tex]
On substituting the given values, we get
⇒ [tex]3.37\times 10^{-19}=6.626\times 10^{-34}\times v[/tex]
On solving, we get
⇒ [tex]v=5.09\times 10^{14} \ s[/tex]
If the energy of a photon of light is 3.37 x 10⁻¹⁹ J, then the frequency of the light is 5.09 x 10¹⁴ per sec.
How we calculate frequency?Frequency of light will be calculated by using the below formula:
E = hυ, where
E = energy of photon = 3.37 x 10⁻¹⁹ J
h = plank's constant = 6.626 × 10⁻³⁴ Js
Putting these values on the above equation and calculate for the frequency as:
υ = 3.37 x 10⁻¹⁹ J / 6.626 × 10⁻³⁴ Js = 5.09 x 10¹⁴ per sec
Hence, option (C) is correct i.e. 5.09 x 10¹⁴ per sec.
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A sample of gas has a volume of 2.0 liters at a pressure of
1.0 atmosphere. When the volume increases to 4.0 liters, at constant temperature, the pressure will be
a. 0.50 atm
b. 2.0 atm
c. 0.25 atm
d. 1.0 atm
Are humans more similar to trees or bacteria? How do you know?(1 point)
A
Humans are more similar to bacteria because trees cannot move around their environment.
B
Humans are more similar to trees because bacteria are too small to see.
C
Humans are not similar to trees or bacteria. Humans are a special species that is not related to any other species on Earth.
D
Humans are more similar to trees because all plants and animals are part of the same domain.
Answer:
Humans and trees are interdependent - we breathe in oxygen and breathe out carbon dioxide, while trees take in carbon dioxide and release oxygen.
Humans have about a thousand genes similar to those of bacteria, presumably because the genes are so vital that their DNA structure has remained much the same over millions of years of descent from a common ancestor.
Explanation:
True or False: Different substances, like shortening and soap, will melt at the same temperature. True False
Answer:
false
Explanation:
different things will have different melting points
How do gut bacteria help people?(1 point)
A
by making enzymes to break down food
B
by causing a variety of digestive disorders
C
by releasing compounds that kill harmful bacteria
D
by training other bacteria to treat infection
Answer: the answer would be B
5.25 ml of substance A has a mass of 3.9 g and 6.24 ml of substance B has a mass of 4.4 g. Which liquid is more dense?
Answer:
A is more dense
Explanation:
The is because you can find the density of anything by dividing the Mass by volume A is .7428 and B is .7051 . There fore A is denser .
WHAT IS THE CHEMICAL REACTION
Answer:
hi
Explanation:
Chemical reactions are an integral part of technology, of culture, and indeed of life itself. Burning fuels, smelting iron, making glass and pottery, brewing beer, and making wine and cheese are among many examples of activities incorporating chemical reactions that have been known and used for thousands of years. Chemical reactions abound in the geology of Earth, in the atmosphere and oceans, and in a vast array of complicated processes that occur in all living systems.
-facts
How many moles of oxygen are required to use up 2 moles of propane?
Answer:
6.0 moles
Explanation:
The thing to remember about balanced chemical equations is that the stoichiometric coefficients added to each chemical species that takes part in the reaction are equivalent to moles.
I think its 10 moles, hope this helps.
If a scale floated by and an astronaut stood on it, what would the scale say?
1.0kg
2.1/6 normal weight
3.9.8 m/s2
4.1/6 normal mass
Which element is the first element in group 13 of the periodic table of elements?
Answer:
Boron
Explanation:
Answer:
Boron
Explanation:
Boron is the first element of Group 13 and is the only metalloid of the group. Its chemical symbol is B, and it has an atomic number of 5. Boron has the electron configuration [He] 2s 2 2p 1 and prefers an oxidation state of +3. Boron has no natural elemental form; it forms compounds which are abundant in the Earth's crust.
What makes up soil and where do these main components come
from? ASAP
Answer:
Soil is a mixture of minerals, dead and living organisms (organic materials), air, and water.
Explanation:
Dead organisms decompose(kind of like fertilizer)
water comes from nearby watersheds, precipitation processes, etc.
Answer:
Soil is made up of three main components – minerals that come from rocks below or nearby, organic matter which is the remains of plants and animals that use the soil, and the living organisms that reside in the soil. The proportion of each of these is important in determining the type of soil that is present.
Fill in the blanks and name the process.
What is the process of ____ reproduction where a cell makes ___ of itself?
Write the formulas for the following ionic compounds.
potassium iodide
magnesium phosphide
silver sulphide
iron(III) bromide
magnesium hydroxide
sodium sulphate
lead (IV) nitrate
ammonium carbonate
Answer:
1) KI
2) Mg3P2
3) Ag2S
4) FeBr3
5) Mg(OH)2
6) Na2SO4
7) Pb(NO3)4
8) (NH4)2CO3
HELP ASAP!!!
can someone help be determine the formulas for reactants and products as well as balance the equation, and what type of reaction is presented!!!!
I will make you the brain list!!!
Answer: owa owa
Explanation: owa owa owa owa
PLEASEEEE HELP URGENTTTT
Answer:
i don't see the question
Explanation: