What is a chemically active atom?

Answers

Answer 1

Answer: Is a stability relative to the elements surrounding it on the periodic table

Related Questions

The value of Ka in water at 25 °C for propionic acid (C2H5CO2H) is 3.4 x 10-5 M. What is the pH of a 0.020 M aqueous solution of propionic acid?
An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. What other characteristic does the radiation have?some shielding required no mass large mass high penetrating power
Which activity is the best demonstration of J. J. Thomson’s use of creativity in his work?
If 3/5 < x < 67%, which of the following could be the value of x?
A 0.20-Molar solution of K2CO3 is a better conductor of electricity than a 0.20-Molar solution of KBr. Which of the following BEST explains this observation between the two solutions. *

Compared to the mass and the penetrating power of an alpha particle, a beta particle has?1) Less mass and greater penetrating power
2) less mass and less penetrating power
3) more mass and greater penetrating power
4)more mass and less penetrating power

Answers

The first one is correct.
An alpha particle has more than 7000 times the mass a beta, but it has less penetrating power because it has a shorter range.

How many grams of oxygen can be created when you heat 200g of sodium chlorate

Answers

The balanced chemical reaction is:

2NaClO3 9= 2NaCl + 3O2
We are given the amount of sodium chlorate to heat. This will be the starting point of our calculations.

200 g NaClO3 (1 mol / 106.44 g) ( 3 mol O2 / 2 mol NaClO3) (32 g O2 / 1 mol O2) = 90.19 g O2

What is the mass of an aluminum cylinder that has a volume of 1.50m3

Answers

Answer: The mass of aluminium cylinder is 4065 kg.

Explanation:

Density is defined as the ratio of mass of the object and volume of the object.

Mathematically,

$\text{Density}=\frac{\text{Mass of the object}}{\text{Volume of the object}}$

We are given:

Density of aluminium = $2710kg/m^3$

Volume of aluminium cylinder = $1.50m^3$

Putting values in above equation, we get:

$2710kg/m^3=\frac{\text{Mass of aluminium cylinder}}{1.50m^3}\n\n\text{Mass of aluminium cylinder}=4065kg$

Hence, the mass of aluminium cylinder is 4065 kg.

Aluminium density: 2700g/m^3

therefore; 2700g/m^3 X 1.50m^3 = 4050g = 4.05Kg

Just use the units of density (mass/volume) and the units of what's given to figure it out :)

At the same temperature and pressure, 1.0 liter of CO(g) and 1.0 liter of CO2(g) haveA. equal masses and the same number of molecules
B. different masses and a different number of molecules
C. equal volumes and the same number of molecules
D. different volumes and a different number of molecules

Answers

Answer is C - equal volumes and the same number of molecules.

Explanation;

Let's assume that CO and CO₂ are ideal gases. Then we can use ideal gas law, PV = nRT

Where, P is the pressure of the gas (Pa), V is the volume of the gas (m³), n is the number of moles of gas (mol), R is the universal gas constant ( 8.314 J mol⁻¹ K⁻¹) and T is temperature in Kelvin.

The temperature and the pressure of the both gases are same. Volume is also same as 1.0 L. R is a constant. So according to the formula, both gases have same number of moles. According to the Avogadro's constant, 1 mole has 6.022 x 10²³ particles.

number of molecules = Avogadro's constant x number of moles.

Hence, under the same conditions both gases have same number of molecules.

C is the correct answer. All gases have the same volume under the same conditions.. This is just their nature. And one liter of a gas has the same number of molecules of another gas

During fusion, the hydrogen in the Sun is?a. entirely converted to energy.

b. entirely converted to helium.

c. partially converted to energy.

d. partially converted to deuterons.

Answers

i am not sure but i think the answer is no C

it is c partially converted to energy

If the atomic weight of nitrogen is 14.01, what is the mass of the nitrogen atoms in one mole of cadmium nitrate, Cd(NOÀ)

Answers

The answer is 28.02.

The chemical formula for cadmium nitrate is Cd(NO₃)₂.

There are in total 2 nitrogen atoms in Cd(NO₃)₂. If the atomic weight of nitrogen is 14.01, the mass of two nitrogen atoms in one mole of cadmium nitrate is 28.02:
2 · 14.01 = 28.02

Other Questions

What is the value for (delta)G at 1000 K if (delta)H = -220 kJ/mol and (delta)S = -0.05 kJ/(molK)?A. -220 kJ B. -270 kJ C. 780 kJ D. -170 kJ

Ethanol and dimethyl ether have different chemical and physical properties because they have different(1) functional groups (2) molecular masses (3) numbers of covalent bonds (4) percent compositions by mass

Given that the molar mass of naoh is 40.00 g/mol, what mass of naoh is needed to make 2.500 l of a 2.000 m naoh solution? use molarity equals startfraction moles of solute over liters of solution endfraction.. 0.1250 g 5.000 g 32.00 g 200.0 g

Which statement correctly describes diamond and graphite, which are different forms of solid carbon?(1) They differ in their molecular structure, only.(2) They differ in their properties, only.(3) They differ in their molecular structure and properties.(4) They do not differ in their molecular structure or properties.