is Sulfur dioxide is a covalent compound?

Answer:

An oxidising agent oxidises something else. Oxidation is loss of electrons (OIL RIG). That means that an oxidising agent takes electrons from that other substance.

Explanation:

Explanation:

When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises. When a substance is cooled, it loses thermal energy, which causes its particles to move more slowly and its temperature to drop.

When the temperature of a substance is increased, i.e., if you double the Kelvin temperature of a substance, you double the average kinetic energy of its molecules. When the average kinetic energy of the molecules goes up (a rise in temperature), the average speed of the molecules increases.

Answer:

gold - element

nickel- element

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{6.4 \times {10}^{22} }{6.02 \times {10}^{23} } \\ = 0.10631229...[/tex]

We have the final answer as

Hope this helps you

Answer:

The answer is 1:2 option B

Plz mark as brainliest............. hope it helps

The ratio of the metal cationic atom to the nonmetal anionic atom will be 1 :2. Therefore, option B is correct.

A lewis electron dot representation is utilized to represent the number of bonds, the bonding atoms, and the lone pairs on the atoms in the molecule or chemical compound.

Straight lines are used to represent the bond between atoms that are bonded to one another and excess electrons are represented as dot pairs to show the lone pairs on the atoms.

In the given image, calcium has two valence electrons and Fluorine needs one electron to complete its octet. So the calcium will donate its two electrons to two F. Each Flourine will accept one electron Therefore, the compound formed will be CaF₂.

Therefore, the ratio of the calcium cationic atom to the Fluorine anionic atom will be 1 : 2.

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Explanation:

Structure of Carbon dioxide is in the attachment.

Here,

Hybridization of Carbon is sp

Bond angle 180°

Structure = linear

Answer:

O=C=O

Explanation:

this is all you need

Answer:

Protons:

- positive

- aka cation

- in the nucleus along with the neutrons

Electrons:

- negative

- aka anion

- situated in the orbital shells/configuration levels (there are many names)

Answer:

A & D

Explanation:

all of the other things are made up of atoms, not what atoms themselves are made of.  they are not large, and they make up all matter

An atom is made up of a nucleus and revolving electrons. Inside the nucleus protons and neutrons are located. Thus the components of an atom are protons, electrons and neutrons. Thus, option A is correct.

An atom is the basic unit of every substances. Atoms combine together to form molecules, molecules then forms compounds and so on.

The inner core of an atom is called nucleus which contains positively charged particles namely protons and neutral particles neutrons. There are circular paths of fixed energy surrounding the nucleus.

The circular paths around the nucleus is called orbits through which the electrons are revolving. Electrons are negatively charged particles and they neutralize equal number of positive charges.

A neutral atom have equal number of protons and electrons and this number is called its atomic number. The sum of number of protons and neutrons is called the mass number.

Hence, an atom is made up of protons, electrons, and neutrons and option A is correct.

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Answer:

1.  c

2. ionic

3. c

4. ionic

5. alloy or ionic

Explanation:

The compound classification.

The compounds are classified as per several different criteria and one common elements is the specific element that is present this makes it an iconic or a molecular. The presence of the oxides, hydrides, and various atomic groups.

Hence the answer is melting point to conductivity classified as c, iconic, c, iconic, and alloy.

Learn more about each compound as.

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The electron configuration of Iron is:

[Ar] 3d⁶4s²

Answer:

Therefore,900 C of charge produce produce chlorine=(71g)(1.93×105C)×(900C)=0.331g.

Explanation:

Follow me..........

Answer:

the answer is a please check

Answer:

D atoms of the same element which have different numbers of neutrons

Explanation:

Isotopy is the existence of two or more atoms of the same element having the same atomic number but difference mass number due to differences in the number of neutrons in their various nuclei.

Mass of Mg=3 g

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

mol Mg in 7.43 x 10²² atoms :

[tex]\tt \dfrac{7.43\times 10^{22}}{6.02\times 10^{23}}=0.1234[/tex]

mass Mg

[tex]\tt mass=mol\times MW\\\\mass=0.1234\times 24.3=2.99\approx 3[/tex]

Answer:

D = 4 g/mL

General Formulas and Concepts:

Density = Mass over Volume

Explanation:

Step 1: Define

m = 100 g

V = 25 mL

D = unknown

Step 2: Find D

Answer:

I think is d.

Explanation:

particles that make up the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. the Instability of an atom's nucleus may result from an excess of either neutrons or protons.

I'm not sure, but hope it helps.

Forming very strong bond characteristics indicates that an atom is unstable. Hence, option D is correct.

An atom is any particle of matter which contains at least one proton.

An atom is unstable if the nucleus has an excess of internal energy.

The Instability of an atom's nucleus may be due to an excess of either neutrons or protons.

Hence, forming very strong bond characteristics indicates that an atom is unstable.

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Answer:

33.33 Watt

Explanation:

we know that P= W/t

W= work

t= time (in seconds)

so here

W= 100,000J

and t= 50 min= 50×60 sec= 3000 s

so P= 100,000/ 3000

=100/3 = 33.33Watt

Answer:

This question is incomplete

Explanation:

This question is "lacking" in some words. A substance that conducts electric current when in it's liquid state is an electrovalent or ionic compound and the type of bond present in this substance is electrovalent or ionic bond. This is the type of bond that involves the transfer of electron(s) between constituent atoms. One major characteristic of these substances is that they conduct electric current when dissolved in water. Examples include NaCl and KBr

Answer: (1)CaSO4 -> (2)O2 + (1)CaS

Explanation: edge 2020 chem

Answer:

672.6 grams

Explanation:

molar mass of 1 mol of C₈H₁₈ = 114 grams

so mass of 5.9mol of C₈H₁₈ = 114* 5.9= 672.6 grams

Answer: the answer is 2g because you subtract 32-34 and get 2 and add the get so 2g

Explanation:

2 g of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide.

To determine the amount of hydrogen that reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide ([tex]H_2O_2[/tex]), we need to apply stoichiometry.

First, we find the molar masses:

Molar mass of oxygen ([tex]O_2[/tex]) = 16 g/mol

Molar mass of hydrogen peroxide ([tex]H_2O_2[/tex]) = 34 g/mol (given)

Next, we calculate the number of moles for oxygen and hydrogen peroxide:

Moles of oxygen = mass/molar mass = 32 g / 16 g/mol = 2 moles

Moles of hydrogen peroxide = mass/molar mass = 34 g / 34 g/mol = 1 mole

Since hydrogen peroxide has two hydrogen atoms, it requires twice the moles of hydrogen. Therefore, the moles of hydrogen required are also 2 moles.

Finally, we convert the moles of hydrogen to grams:

Mass of hydrogen = moles × molar mass = 2 moles × 1 g/mol = 2 g

So, 2 g of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide

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Answer:

The increase in CO2 will affect crop plants by causing in increase in global warming and therefore, will stunt plant growth and cause excessive heat to kill the plants.

Explanation:

Hope this helps! xoxo

Answer:

Cobalt

Explanation:

The number of protons in an atom is called the atomic number.

Atomic number of an element is used by chemists to determine the element. The periodic table for example is based on the atomic number of elements.

Since both given elements have a proton number of 27, they are both the same element.

We simply check the periodic table for the element whose atomic number corresponds to this.

  The element here is Cobalt.

What differs between the two of them is that they are different isotopes.

Answer:

It would be better if you posted the question, thank you.

Explanation:

Answer:

Potassium

Explanation:

Answer:

B-29

Explanation:

Since there are 29 positive charges in the nucleus, there must be 29 negative charges. And cause the atomic number of copper is 29.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\ [/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{1.00 \times {10}^{25} }{6.02 \times {10}^{23} } \\ = 16.6112956...[/tex]

We have the final answer as

Hope this helps you

Answer:

200 W

Explanation:

Formula of Power is

P= W/T

where

W= Work and T= Time

so

4000/20 = 200J/s or 200 W