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(II) I THINK ANSWER is "B"(III) is "D"

I am not SURE but MAYBE NA /10

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hen a copper vessel is exposed to moist air for a long time it develops a green LAYER on its surface. Copper corrodes by oxidation in which it reacts with oxygen in the air to form copper oxide. Copper oxide then COMBINES with carbon dioxide to MAKE copper carbonate, which gives it a green colour. This process is called corrosion of copper.The green material is a mixture of copper hydroxide (Cu(OH)2) and copper carbonate (CuCO3). The FOLLOWING is the reaction:Copper(II) carbonate is a blue-green compound.HOPE THIS ANSWER WILL HELP YOU!!

o calculate the stoichiometry by mass, the number of molecules required for each REACTANT is expressed in moles and multiplied by the molar mass of each to GIVE the mass of each reactant per mole of REACTION. The mass ratios can be CALCULATED by dividing each by the total in the WHOLE reaction.

They are usually in the FORM of a solid at room temperature. They are very good conductors of electricity and heat. METALS are malleable and ductile. They mostly have a very high melting point.Explanation:I hope it is helpful plz MARKS me as brainlieast and give me thanks at all my ANSWERS and follow me

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radiumExplanation:If the ANSWER is HELPFUL KINDLY MARK it as BRAINLIEST.

The Brahmana ASSEMBLY in the Chola empire was KNOWN as brahmadeyamark me as BRAINLEST:

tion:The force of attraction similar molecules is CALLED cohesive force and that between dissimilar molecules is called ADHESIVE forces. ... DUE to stronger adhesive forces over cohesive forces, water shows CONCAVE meniscus in narrow glass tube.

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Everything we have and everything we use comes from our natural RESOURCES. The Earth is the SOURCE for all of it. The air we breathe, the food we eat, the clothes we WEAR, and the HOUSES we live in all come from our natural resources. Kindly mark me as brainliest...plzzzhope u like my answer..

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gbxcvhbjjjjjjkkkvsstgsyz WIND at EH HI ivExplanation:EFT

what is this? I can't UNDERSTAND this PROBLEM

This is the STRUCTURE of it.Hope It HELPS You!

ᴛʀᴏᴄʜᴇᴍɪᴄᴀʟ ᴄᴇʟʟ ᴛʜᴀᴛ ᴄᴏɴᴠᴇʀᴛs ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴇɴᴇʀɢʏ ᴏғ sᴘᴏɴᴛᴀɴᴇᴏᴜs ʀᴇᴅᴏx ʀᴇᴀᴄᴛɪᴏɴs ɪɴᴛᴏ ᴇʟᴇᴄᴛʀɪᴄᴀʟ ᴇɴᴇʀɢʏ ɪs ᴋɴᴏᴡɴ ᴀs ᴀ ɢᴀʟᴠᴀɴɪᴄ ᴄᴇʟʟ ᴏʀ ᴀ ᴠᴏʟᴛᴀɪᴄ ᴄᴇʟʟ. ɢᴀʟᴠᴀɴɪᴄ ᴄᴇʟʟ ᴠᴏʟᴛᴀɪᴄ ᴄᴇʟʟ ɪs ᴀɴ ᴇʟᴇᴄᴛʀᴏᴄʜᴇᴍɪᴄᴀʟ ᴄᴇʟʟ ᴛʜᴀᴛ ᴍᴀᴋᴇs ᴜsᴇ ᴏғ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs ᴛᴏ ɢᴇɴᴇʀᴀᴛᴇ ᴇʟᴇᴄᴛʀɪᴄᴀʟ ᴇɴᴇʀɢʏ.ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs.... ᴍᴀʀᴋ ᴍᴇ ᴀs ʙʀᴀɪɴʟɪᴇsᴛ ❤❤

tion:STRUCTURE of FORMATION of H2O by forming covalent bond

tance, the GROUND state electronic configuration of calcium (Z=20) is 1s22s22p63s23p64s2. The calcium ion (CA2+), however, has two ELECTRONS less.

First, WORK out the relative formula MASS of the compound, using the Ar values for each element. In the case of sodium hydroxide, these are Na = 23, O = 16, H = 1. (You will be given these numbers in the exam.) Next, divide the Ar of oxygen by the Mr of NaOH, and MULTIPLY by 100 to get a percentageExplanation:hopes it  helps you

The MOLARITY of the SOLUTION is  0.Kindly mark me as BRAINLIEST...plzzzhope u LIKE my ANSWER..

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2.76 eV a PHOTON of BLUE LIGHT of wavelength 450 NM will always have 2.76 eV of energy.Kindly mark me as brainliest.hope u like my answer..

The FACTORS that affect an object's gravitational POTENTIAL ENERGY are its HEIGHT relative to some reference point, its mass, and the strength of the gravitational FIELD it is in.Explanation:❤️HOPE IT HELPS YOU DEAR❤️

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ᴛ ʜᴇʟᴘs.... ᴍᴀʀᴋ ᴍᴇ ᴀs ʙʀᴀɪɴʟɪᴇsᴛ ❤❤

One limitation of the octet RULE is that it cannot be applied to the NONMETALS after silicon in the Periodic Table.Molecules with an odd NUMBER of ELECTRONS such as NO and NO2 cannot satisfy the octet rule.Explanation:

b.radius of CURVATURE

Find this answer on GOOGLE+ Explanation:or on YOUTUBE CHANNEL CALLED magnet brains

In sodiumoxide COMPONENTS are sodium+oxygenIn MAGNESIUMOXIDE components are magnesium+oxygenPLEASE MARK AS BRAINLIEST

ontains H+ and OH- ions which are RESPONSIBLE for the conduction of electricity.But TOLUENE doesn't contain H+ and OH- ions.Thus solution of HCL and water conducts electricity.Done with the answer.Hope it was helpful to you!!!

1,2- dicyclohexyl ETHANE

कोलॉइडी विलयन विशमांग होते हैं और उनमें कम से कम दो प्रावस्थाएँ होती हैं परिक्षिप्त प्रावस्था और परिक्षेपण माध्यम।परिक्षिप्त प्रावस्था: वह पदार्थ जो कम मात्रा में विघमान रहता है और इसके कण कोलॉइडी आमाप (1 से 100 NM) के होते हैं। परिक्षेपण माध्यम: यह वह माध्यम है जिसमें कोलॉइडी कण परिक्षिप्त रहते है। पानी में, गंधक कोलॉइडी विलयन में गंधक कण परिक्षिप्त प्रावस्था बनाते हैं और पानी परिक्षेपण माध्यम होता है। ये दो प्रावस्थाएँ : परिक्षिप्त प्रावस्था और परिक्षेपण माध्यम, ठोस, द्रव अथवा गैस हो सकते हैं। इस प्रकार दो प्रावस्थाओं की भौतिक अवस्था के अनुसार कोलॉइडी विलयन विभिन्न प्रकार के हो सकते हैं। सारणी में विभिन्न प्रकार के कोलॉइडी विलयन और उनके उदाहरण दिए गए हैं।ऊपर दिए गए विभिन्न प्रकार के कोलॉइडी विलयनों में विलय (द्रव में ठोस), जैल (ठोस में जल), और पायस (द्रव में द्रव) प्रमुख है। उल्लेखनीय है कि यदि परिक्षेपण माध् यम जल हो तो विलेय को जल विलेय कहते हैं और यदि परिक्षेपण माध्यम ऐल्कोहॉल हो तो विलेय को ऐल्को विलेय कहते है।Explanation:Brinlance ANSWER kar do please BHAI

Intermolecular interactions of solids are greater than intermolecular interaction in gases, So the bond length of O-O bond is less in solid-state, it LEADS to more lone PAIR -lone pair REPULSIONS and bond angle is more in the solid-state as COMPARED to the GASEOUS state.I hope it will helpfull....☺️

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tion:Corrosion of iron :Rusting is the COMMON term for corrosion of iron and its alloys, such as steel. Many other metals undergo similar corrosion, but the resulting oxides are not commonly called rust. Other forms of rust exist, like the result of reactions between iron and CHLORIDE in an environment deprived of oxygen.Corrosion of Copper :Copper does not rust, however, it does corrode. Copper is naturally brown and turns a shade of bright green as it corrodes. While some CONSIDER copper's reaction to be TARNISH rather than oxidation, the METAL still undergoes a similar “rusting” process.Kindly mark me as brainliest...plzzzzhope u like my answer..

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