1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mr Goodwill [35]
2 years ago
12

does anyone know the three answers Question 1 which element is in group 5 period 2?, question 3 which element is in group 6 peri

od 2?, question 4 which element is in group 8 period 1? this IPC it is both Integrated Physics and Chemistry
Chemistry
2 answers:
MrRa [10]2 years ago
4 0

Explanation:

1. Nitrogen

3. Oxygen

4. Helium

trapecia [35]2 years ago
3 0

look into the periodic system

question 1: nitrogen

question 3: oxygen

question 4: helium

You might be interested in
What's another name for mesh screen
olya-2409 [2.1K]
Another name for a mesh screen is a sieve.
7 0
3 years ago
From Young's experiment, how does the frequency of light affect the number of lines observed?
Marina CMI [18]

Answer : (C) "Higher frequencies have larger spaces between lines".

Explanation:

In Young's experiment, the condition for constructive interference is given by :

dsin\theta=n\lambda.........(1)

n is order or number of lines observed

d is distance between slits

\theta is the angle between the path and the line from screen to the slits.

We also know that, c=\nu \lambda

or

\lambda=\dfrac{c}{\nu}

where,

c is the speed of light

\nu is frequency

\lambda is wavelength

So, equation (1) turns into

dsin\theta=n\dfrac{c}{\nu}

\nu=\dfrac{n\ c}{d\ sin\theta}

So,

\nu\propto n

or

Higher frequencies have larger spaces between line.

So, correct option is (C).

3 0
3 years ago
Read 2 more answers
Calculate the mass percent of copper in cus, copper(ii) sulfide. if you wish to obtain 10.0g of copper metal from copper(ii) sul
Aleksandr [31]
Using the relative atomic weights of both copper and sulfur ie copper = 63.55 and sulfur is 32.06 so 63.55+32.06=95.56 total mass and so of this, copper = 63.55/95.56=66.4%. So to get 10 grams of copper, use the formula 10g=66.4%xCuS so CuS=10/0.664=15.06 grams of CuS. 
4 0
3 years ago
Predict the geometry about each interior atom in acetic acid:
aleksandr82 [10.1K]

The atomic structure of the acetic acid is:

                        H     O

                        l       l

                H – C – C – O – H

                        l

                        H

 

We can see from the structure that there are 2 interior atoms, and these are all Carbon atoms.


The geometry is:

Tetrahedral on First Carbon

Trigonal Planar on Second Carbon

5 0
3 years ago
What is the molar mass, in grams, of a mole of an element equal to?
insens350 [35]

Answer:

B. the atomic weight of the element

Explanation:

since it talks about mass i think weight

5 0
3 years ago
Other questions:
  • According to newtons third law forces always occur in equal but____ pairs?
    13·1 answer
  • A liquid has a density of 1.17 g/cm3, how many liters of the liquid have a mass of 3.75 kg
    15·1 answer
  • Which is the safest method for diluting concentrated sulfuric acid with water?
    5·1 answer
  • 8. Adding up all of the of all of the individual atoms within one molecule of a compound will determine the
    6·1 answer
  • The rate constant of a certain reaction is known to obey the Arrhenius equation, and to have an activation energy Ea = 71.0kJ/mo
    13·1 answer
  • How many particles are in 8.00 moles of bromine?
    11·2 answers
  • What are half reaction
    15·2 answers
  • Write the balanced reaction and solubility product expression (KSP) for dissolving silver chromate: Ag2CrO4(s). Include all char
    11·1 answer
  • Which is greater , 3 moles of sulfur or 2 moles of iron sulphide
    9·2 answers
  • You are a forensic scientist who has been asked to test two blood samples. You know that one sample is suspected of containing b
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!