What are some examples of 7a elements

Assignment Help Chemistry
Reference no: EM13852151

What are some examples of 7a elements?  How many valence electrons do these elements have?  Are these elements considered reactive?  What are some practical uses of some group 7a elements?

 

 

Reference no: EM13852151

Questions Cloud

What is meant by visibility into the workflow : What is meant by "visibility into the workflow" and why is it important to FreshDirect's success? What are exception screens and how are they used?
What is the annualized yield to maturity : A $1,000 par value bond with a 5% coupon that pays interest semiannually and matures in 2 1/2 years and has a current price of $977. What is the annualized yield to maturity and Disadvantages of investing in the futures market include all of the EX..
Velocity of the conveyor belt : A block is propelled by a conveyor belt and released at point O with unknown velocity v0. The block is a projectile from O to A. At A the block slides onto a ramp AB and slides down until it comes to a stop. Determine the following:
What is its actual depth : A fisherman sees rays of light apparently diverging from a point P' on a fish (see figure below). The fish appears to be at y = 1.1 m below the surface. What is its actual depth? (Take θ = 41.2°.)
What are some examples of 7a elements : What are some examples of 7a elements?  How many valence electrons do these elements have?  Are these elements considered reactive?  What are some practical uses of some group 7a elements?
What other elements have electron configurations : What other elements have electron configurations similar to hydrogen?
Perform elemental analysis is combustion analysis : The most common experimental technique to perform elemental analysis is combustion analysis, where a sample is burned in a large excess of oxygen and the combustion products are trapped in a variety of ways. A 99.99% pure,0.4949g sample containing on..
Write a truth tables and explain how each one of these two : Write a truth tables and explain how each one of these two circuit work
Determine the effective mass of the two holes : Determine the effective mass of the two holes for both materials. Which one has larger effective mass? What determines this?

Reviews

Write a Review

 

Chemistry Questions & Answers

  What is the concentration of oygen dissolved in water

what is the concentration of oygen dissolved in water at 20 degrees celsuis in equilibrium with a gas mixture at 0.81 atm.

  Compute the amount naoh that is acetic acid

Calculate the amount (in mL) of a 1.520M NaOH that is required to add the following acetic acid solutions to prepare a buffer with the corresponding pH: pKa of acetic acid = 4.74

  A commercial cylinder contains 691 m3 of o2 at 1518 mpa

a commercial cylinder contains 6.91 m3 of o2 at 15.18 mpa and 21oc. the critical constants for o2 are tc -118.4 oc and

  Explain what is the molar concentration of the solution

While 4.33g of a nonelectrolyte solute is dissolved in water to make 205mL of solution at 21 C, the solution exerts an osmotic pressure of 891torr.

  In developing the melting point of a compound if the

in developing the melting point of a compound if the heating is carried out too fast would the observed melting point

  Explain the production of glucose by gluconeogenesis

Which of the following hormones increases blood glucose levels by inducing the breakdown of glycogen and the production of glucose by gluconeogenesis

  Explain what is the volume that is occupied by an object

Explain what is the volume that is occupied by an object having a density of 1.78 g/cm3 and a mass of 1.25 kg

  Assume gases are at the same pressure and temperature

Assuming all gases are at the same pressure and temperature, how many liters of CO2 are formed from 15.0L of CO.

  Find out the identity of the metal

A 4 g sample of the metal nitrate M (NO3)2 was dissolved in water as well as treated with excess aqueous sodium sulfate. The sulfate salt that formed weighed 3.318 g. Find out the identity of the metal.

  If a solution of hin is adjusted to ph a mixture

If a solution of HIn is adjusted to pH 6.23 contains a mixture of HIn and In- with a total concentration of 1.84x10-4M. The absorbance at 440nm is 0.868. Compute pKa

  How many moles of hcl must be added

How many moles of HCL must be added to 1.50L of 1.70M KOH to obtain a pH of 2.00?

  Explain standard mastering chemistry notation

What is the rate law for step 1 of this reaction? ((Express your answer in standard Mastering Chemistry notation.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd