first to answer correctly gets brainleist

You have four fixed-volume containers at STP. Container A has 0.5 mol of gas in 11.2L. Container B has 2 mol of gas in 22.4 L. Container C has 1 mol of gas in 22.4L. Container D has 2 Mol gas of gas in 11.2 L. Which of the four containers have equal pressures

A and C

Answer:

false

Explanation:

i had the same thing to do

Answer:

i think it's D

Explanation:

sorry if its wrong

The issue that is associated with nuclear power is the biggest source of debate is what to do with radioactive waste. The correct option is D

Nuclear power is the power that is generated by combining or breaking nuclear atoms. There are two processes for generating nuclear power. They are nuclear fission, in which the breaking of big nuclei happens. Nuclear fusion, in which two nuclei join together to form a big nucleus.

Nuclear waste is the radiation generated from nuclear fission and fusion. This waste is very harmful to nature and animals. It can cause many deformities in humans and genetic disorders.

Nuclear waste is highly challenging, and its disposal is very hard, deep geological disposal is the only option.

Thus, the correct option is D, what to do with radioactive waste.

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Answer: The 'mass of the object' directly affects kinetic energy

Explanation:

Answer:

This question appear incomplete

Explanation:

This question appear incomplete or has some wrong contents in it. Strontium, fluorine and oxygen do not exist in the same compound. This can even be better confirmed by the options provided. The options provided just two compounds that are rightly named

Strontium fluoride - SrF₂

Strontium Chlorate - SrCl₂

The options strontium fluorate and strontium fluorine are wrong names of the option strontium fluoride. Thus, if the question was asking of a compound that has just strontium and fluorine, the answer would have been strontium fluoride (SrF₂)

Answer:

1580 decilliters

Explanation:

Answer:

Convert 1.580 hectoliters to deciliters.

1,580

liters

Explanation:

I took the test;)

Answer:

3. x 10⁸m/s

Explanation:

Given parameters:

Frequency of wave  = 7.8 x 10⁶Hz

Unknown:

Speed of the wave = ?

Solution:

All electromagnetic radiation has  a speed of 3. x 10⁸m/s in free space.

No matter the frequency and wavelength, they all have the same speed which is the same as the speed of light.

The speed of electromagnetic wave that has a frequency of [tex]7.8 * 10^{6}[/tex] Hz is [tex]3 * 10^{8}[/tex] m/s.

Electromagnetic waves:

Higher-frequency electromagnetic waves have less energy. All electromagnetic waves travel across space at the speed of light which is  [tex]3 * 10^{8}[/tex] m/s.

As we know that,

Speed=frequency x wavelength,

It follows that the wavelength will also not change. So the direction, speed, frequency and wavelength of any electromagnetic wave are constant and these properties will not change after emission from a source.

Thus, speed of an electromagnetic wave is fixed and does not change on varying frequencies which is [tex]3 * 10^{8}[/tex] m/s.

OR

The waves travel at the same speed, but the observed frequency depends on any relative motion between the observer and source.

Learn more:

https://brainly.com/question/17264163

Answer:

Al and Hcl

Explanation:

Reactants are the elements, compounds etc before the arrow

Answer:

27.19 cm.

Explanation:

From the question given above, the following data were obtained:

Height (h) of cylinder = 6461.76 cm

Volume (V) of cylinder = 15000000 cm³

P1 (π) = 3.14

Radius (r) =.?

Thus, we can obtain the radius of the cylinder water tank by using the following formula as illustrated below:

V = πr²h

15000000 = 3.14 × r² × 6461.76

15000000 = 3.14 × 6461.76 × r²

Divide both side by 3.14 × 6461.76

r² = 15000000 / (3.14 × 6461.76)

Take the square root of both side

r = √[15000000 / (3.14 × 6461.76)]

r = 27.19 cm

Thus, the radius of the cylinder water tank is 27.19 cm.

Answer:

it's a symbiotic mutual relationship

Explanation:

Greenish-brown algae lives on the crab's back, helping the crabs blend in with their enviroment, which makes them less noticeable to predators. the algae provided with a good place to live while the crab receives camouflage.

Answer:

Mutualism

Explanation:

Mutualism; One organism live in, on, or near another, and both gain something they need for survival. Both organisms are heled.

Answer:

Homeostasis

Explanation:

Answer:

B. 16, 18, 18

Explanation:

Particle;

              ³⁴₁₆S²⁻

The number of particles we seek is the protons, neutrons and electrons.

    ³⁴₁₆S²⁻ is an ion that has gained two electrons from its stable state.

34 is the mass number  = number of protons + neutrons

16 is the atomic number  = number of protons

Number of protons  = 16;

 Number of neutrons  = mass number - atomic number

                                     = 34 - 16

                                     = 18

Number of electrons; In a neutral atom, the number of protons and electrons are the same.

 This atom has gained two more electrons

         16  + 2 = 18

Answer;

         16, 18 , 18

just bring the numbers up and down so there are the same numbers of each element on each side.

on this one i would bring the O2 on the left to 1, bring the right side to 2 so there are 2 oxygens on each side, and because the right side now has 4 hydrogens when you brought up the oxygen, bring the number in front of H2 on the left to 2.

the answer should be 2,1,2

The balanced chemical equation should obey the law of conservation of mass that the number of atoms of each element on both sides should be equal.

2H₂  +  O₂ →  2H₂O

The chemical equation of reaction in which the number of atoms of each element is equal on either side of the arrow is known as a balanced chemical equation.

A chemical equation is the expression of a chemical reaction in terms of symbols and coefficients of the substances. A chemical equation contains reactants participating and products forming in the chemical reaction.

The given chemical equation of the formation of water from hydrogen gas and oxygen gas is:

H₂  +  O₂ →  H₂O

To balance the above equation multiply the hydrogen gas on the reactant side by 2 and multiply the water by 2 on the product side.

2H₂  +  O₂ →  2H₂O

Learn more about the balanced chemical equation, here:

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Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 56 × 3

We have the final answer as

Hope this helps you

Answer:

Oxygen supports combustion so a good method of testing for oxygen is to take a glowing splint and place it in a sample of gas, if it re-ignites the gas is oxygen. This is a simple but effective test for oxygen.

Explanation:

Answer:

B

Explanation:

Answer: density, Omass, radiation, pressure because  Radiation pressure is the mechanical pressure exerted upon any surface . Small bodies are more affected than large ones because of their lower mass relative to their surface area formed by the radiation pressure of the young stars reduces the cluster mass enough to allow rapid dispersal.

Explanation: I Hope that helped!!!