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Answer:

5.01 X 10  POWER 24

Explanation:

Explanation:

An electrovalent compound is formed when a METAL atom TRANSFERS ONE or more ELECTRONS to a non-metal atom.

Answer:

358,853,538///_____

Answer:

SORRY I am not UNDERSTAND that QUESTION??

Explanation:

I don't KNOW

Answer:

VALENCE shell electron pair repulsion THEORY

Explanation:

Valence shell electron pair repulsion theory, or VSEPR theory is a model used in chemistry to PREDICT the geometry of individual molecules from the NUMBER of electron pairs surrounding their central atoms.

ANSWER:

OPTIONS c is correct

Explanation:

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ANSWER:

NITROGEN. . ....MM ....mn

Explanation:

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Answer:

34.998%

EXPLANATION:

This compound is also KNOWN as AMMONIUM NITRATE.

ANSWER:

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Answer:

Mass of CO2=(6)+2(8)=6+16=22

No of molecules=22/22=1

In my view Science cɑn be defined ɑs both ɑ box of knowledge (the THINGS we hɑve ɑlreɑdy DISCOVERED), ɑnd the process of ɑcquiring new knowledge (through observɑtion ɑnd experimentɑtion—testing ɑnd hypothesising). Both knowledge ɑnd process ɑre INTERDEPENDENT, since the knowledge ɑcquired depends on the QUESTIONS ɑsked ɑnd the methods used to find the ɑnswers.

EXPLANATION:

To prepare oxygen ...poured the HYDROGEN PEROXIDE into flask that already conatin MnO2 ( manganese OXIDE) then collect the gas

precaution:

Handle with care. In case of skin contact, rinse the AFFECTED areas well with water. Store unused hydrogen peroxide in a freezer reserved for laboratory chemicals only. Manganese dioxide is a strong oxidant, avoid contact with organic material.

ANSWER:

Speed is a buddy is the DISTANCE travelled by it per unit time in given DIRECTION.

Explanation:

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HOMOGENEOUS :-

• Alloys

• Milk

• Sugar solution

Heterogeneous :-

• SEA water

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EXPLANATION:

It's a IMPERATIVE sentence.

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Answer:

A. HIGHER.

Because metals are heated and it's gains some energy. so metals will GAIN MOLECULES.

Explanation:

2-iodo, 3-butynoic acid

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EXPLANATION:

NO OF MOLES= GIVEN WEIGHT/ MOLAR MASS

NO OF MOLES = 4.4/44 = 0.1 MOLE

NO OF MOLES = GIVEN VOLUME /22.4

SO VOLUME = NO OF MOLES× 22.4

VOLUME = 0.1×22.4= 2.24 litre

no of molecules = no of moles × AVAGADRO NUMBER

no of molecules= 0.1×6.022 ×10²³

no of molecules = 6.022×10²²or 0.6022×10²³

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The pH value of a substance is directly RELATED to the ratio of hydrogen ion [H+] and hydroxyl ion [OH-] concentrations. If the H+ CONCENTRATION is greater than the OH-, the material is ACIDIC; i.e., the pH value is less than 7.

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<STRONG>Answer:

A concentrated acid is an acid which is in either pure form or has a HIGH concentration. Laboratory TYPE sulfuric acid (about 98% by weight) is a concentrated (and strong) acid.

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ANSWER:

when zinc granules are ADDED to dilute hydrochloric ACID then the solution BECOMES colourless

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Answer:

GUD

Explanation:

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Fu*K

Answer:

On heating below 373K, it loses 9 MOLECULES of water of crystallisation to form monohydrate (NA2CO3. H2O). On heating above 373K, the monohydrate changes to an ANHYDROUS white powder called soda ASH but does not decompose further.

Answer:

3). RUSTING of ALMIRAH[✓]

Answer:

You KNOW that “0.5 M” literally MEANS 0.5moles PER liter. ... You know that you will make 200 ml of a NaOH solution that is 0.5 M. You know that to do this, you will weigh out so many grams of NaOH and add WATER to dissolve it, ending up with 200 ml.

Explanation:

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ANSWER:

SORRY don't KNOW the answer

ANSWER:

COLLIGATIVE properties are those properties of solutions that depend on the ratio of the number of solute PARTICLES to the number of SOLVENT MOLECULES .

Explanation:

A mixture is formed by combining two or more materials. A homogeneous mixture appears UNIFORM, REGARDLESS of where you sample it.Examples of homogeneous MIXTURES include AIR, saline solution.

ANSWER:

Li METAL is USED in photoelectric cells, while CS is not used.

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ANSWER:

(C) ACCORDING TO MOLECULAR ORBITAL THEORY!!

yess.

but the two products are not interchangeable. CITRIC acid and ascorbic acid are both found in citrus juice, as well as in numerous other fruits and VEGETABLES. But they have different properties. Ascorbic acid is vitamin C, a powerful antioxidant.

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Answer:

Coordination compounds contain a central metal atom surrounded by nonmetal atoms or GROUPS of atoms, called LIGANDS. ... For EXAMPLE, vitamin B12 is made up of a central metallic COBALT ion bound to multiple nitrogen-containing ligands. Encyclopædia Britannica, Inc.

An addition compound contains two or more simpler compounds that can be packed in a definite ratio into a crystal. The term covers donor-acceptor complexes (adducts) and a variety of lattice compounds.

Answer:

because their electronic CONFIGURATION is in the way that their VALENCE shell has LESS than 4 electrons . as a result they lose e- and BECOME ELECTROPOSITIVE

Answer:

What s that , cant understand .

EXPLANATION:

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You are SINGLE than why are you asking

ANSWER:

6*6.022*10^23

this is the CORRECT answer

ANSWER:

Silicon dioxide reacts as a weak acid with a strong base.

SiO

2

reacts with HOT and concentrated SODIUM hydroxide to form sodium silicate (Na

2

SiO

3

) and water.

SiO

2

+NaOH→Na

2

SiO

3

+H

2

O

ANSWER:

EXPLANATION:

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ANSWER:

2.crystallisation is RIGHT answer.

ANSWER:

balbus

......

EXPLANATION:

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1. MASS of N 14G while AL is 108G

ANSWER:

Thulium

Thulium is AMONG the most obscure elements in the PERIODIC table. It has very few applications. Some people consider it the most useless of all naturally occurring elements, though others will rush to its defense.

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Answer:

Distillation is the process of purification of compounds based on their volatility. Different types of distillation are simple, fractional, steam, VACUUM and short path distillation. Distillation is a physical METHOD of ASSORTING mixtures depending upon the difference in the BOILING point of the COMPONENT substances.

Answer:

1) SUGAR is SOLUTE, WATER is solvent.

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____________________________________________________________

QUESTION:

rq ----> r + q

what type of reaction is this​?

____________________________________________________________

Answer and explanation:

This is an example of decomposition reaction, since one REACTANT is divided into two PRODUCTS

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ANSWER:

All of these

is a PURE SUBSTANCE .

In ATTACHMENT

Answer:

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Explanation:

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