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4 years ago

The attraction between various combinations of atoms will produce _____ which form molecules. ions bonds isotopes shells

Chemistry

2 answers:

d1i1m1o1n [39]4 years ago

7 0

Answer: The correct answer is bonds.

Explanation:

For the given options:

Option 1: Ions

Ions are defined as the chemical species which are formed when an atom looses or gains electrons.

When an atom looses its electron, it forms a positive ion known as cation and when an atom gains electron, it forms a negative ion known as anion.

Option 2: Bonds

Bonds are formed when two atoms combine by the attraction of atoms or by the sharing of electrons between the atoms.

When bond is formed by the attraction of atoms, it forms ionic bond and when sharing of electrons takes place between the atoms, it forms covalent bond.

Option 3: Isotopes

Isotopes are defined as the chemical species which have same atomic number but differ in mass number.

Option 4: Shells

Shells are defined as the orbits around the nucleus where electrons are present.

Hence, the correct answer is bonds.

Gemiola [76]4 years ago

4 0

The attraction between various combinations of atoms will produce BONDS..........

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5. Given 18.5 grams of CHA and 24.0 grams of Oz the following reaction occurs. Calculate the number of grams of

ehidna [41]

Answer:

16.5 g of CO₂ are produced by 18.5 of methane and 24 g of O₂

Explanation:

This is a reaction of combustion:

CH₄ + 2O₂ → CO₂ + 2H₂O

1 mol of methane react to 2 moles of oxygen in order to produce 1 mol of carbon dioxide and 2 moles of water.

First of all, we determine the moles of each reactant:

18.5 g . 1mol/ 16g = 1.15 moles of methane

24 g . 1mol / 32g = 0.75 moles of oxygen

Now, we determine the limiting reactant:

1 mol of methane reacts to 2 moles of oyxgen

1.15 moles of methane may react to (1.15 . 2) /1 = 2.3 moles.

We only have 0.75 moles of O₂ and we need 2.3, that's why the oxygen is the limiting reagent, because we do not have enough oxygen for the reaction.

2 moles of O₂ produce 1 mol of CO₂

Then 0.75 moles may produce (0.75 . 1) /2 = 0.375 moles of CO₂

We convert the moles to mass → 0.375 mol . 44g /mol = 16.5 g

7 0

3 years ago

What happens to the particles as you increase the oven’s temperature

vekshin1

The particles move faster because heat causes the atoms to speed up and move farther from each other.

3 0

4 years ago

Calculate the amount of CO2 (in kg) released when 1 kg of coal is burned. Assume that carbon content of the coal is 50% by mass.

Delvig [45]

Answer:

1.8321 kg

Explanation:

The given 1 kg of coal contains 50% of the carbon atom by mass. Thus, mass of carbon in coal is $\frac {50}{100}\times 1\ kg=0.5\ kg$

Also, 1 kg = 1000 g

So, mass of carbon = 500 g

The formula for the calculation of moles is shown below:

$moles = \frac{Mass\ taken}{Molar\ mass}$

Molar mass of carbon = 12.0107 g/mol

Moles of methanol = 500 g / 12.0107 g/mol = 41.6295 moles

Considering the reaction:

$C+O_2\rightarrow CO_2$

From the reaction,

1 mole of C react to form 1 mole of $CO_2$

So,

41.6295 moles of C react to form 41.6295 moles of $CO_2$

Moles of $CO_2$ = 41.6295 moles

Molar mass of $CO_2$ = 44.01 g/mol

So, Mass = Moles × Molar mass = 41.6295 moles × 44.01 g/mol = 1832.1143 g

Also, 1g = 0.001 kg

So, amount of $CO_2$ released = 1.8321 kg

4 0

3 years ago

What is the acceleration of a ball traveling horizontally with an initial velocity of 20 meters/second and, 2.0 seconds later, a

Pepsi [2]

Answer: Acceleration of the ball in the given system is 5 meter per Second Square

The laws of motion are used to determine various aspects of an object in motion.

Explanation:

Applying the first law of motion to calculate acceleration; if formula used in first law is given as $v=u+at$

Here we have a final velocity as 40 meter per second and initial velocity as 20 meter per second and time span is given as 2 second applying the given values in the given equation and finding the value of a

$30=20+a \times 2 = a=5 m/s^2$

6 0

3 years ago

When water is pushed out of the way it is said to be____________________.

Travka [436]

I’m not sure but I thin is transpiration

4 0

3 years ago