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
Olenka [21]
3 years ago
5

The element magnesium is a

Chemistry
1 answer:
kipiarov [429]3 years ago
3 0
Group 2
Period 3
Alkaline Earth Metal
You might be interested in
Please help ASAP!! <br><br> (I added a pic)
riadik2000 [5.3K]
The middle is noble gases the first one is alkaline metals and then the last one is the only one left
4 0
3 years ago
Why are there different types of matter.
kiruha [24]

Answer:

solid ; liquid and gas........

7 0
2 years ago
Not easily changed
Advocard [28]
I would say when an atom has its valence electron shell filled like a noble gas has, it is not easily changed.

I’m not entirely sure of what you’re asking, but if you’re talking about bonding then it would be an ionic bond that is not easily changed.
6 0
3 years ago
Calculate the number of moles in 24.18 liters of neon gas at STP.
uranmaximum [27]

The number of moles of Neon gas : 1.079

<h3>Further explanation</h3>

Given

24.18 Liters of Neon gas at STP

Required

The number of moles

Solution

There are 2 conditions that are usually used as a reference in chemical calculations (mainly for determining the volume per mole of a gas or the molar volume), STP and RTP

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.

So mol for 24.18 L :

= 24.18 : 22.4

= 1.079 moles

8 0
3 years ago
How does a scientific theory differ from a guess or an opinion?​
natima [27]

Answer:

Scientific theory differs from a guess or opinion because a scientific theory is a system of ideas that explains many related observation and is supported by a large body of evidence acquired through scientific investigation while guesses and opinions may not reliably predict an outcome, have evidence to back up the theory

Explanation:

5 0
3 years ago
Other questions:
  • a 0.201 M aqueous solution of NaOH was used to titrate HCl in an aqueous solution. 30.5 ml of the NaOH was needed to neutralize
    7·1 answer
  • It’s laundry day at Dan’s house, so he plugs in his electric iron. What transformation of energy takes place inside the iron? Th
    5·2 answers
  • Why do copper ions go to the negative electrode
    12·1 answer
  • Please help me this is an easy science question where you put the correct lettered answer in the small chart. Please help you ge
    5·1 answer
  • The Ka of a monoprotic weak acid is 0.00732. What is the percent ionization of a 0.123 M solution of this acid?
    12·1 answer
  • Which two tools are used to measure humidity?
    13·2 answers
  • In the early 1600's, Galileo used a telescope to investigate dark features on the Sun's surface and used them to calculate the r
    6·1 answer
  • What season is it in earths northern hemisphere when earths northern hemisphere tilts toward the sun
    11·2 answers
  • Explain why the sign of the slope of a regression line must be thesame as the sign of the correlation coeffi cient.
    5·2 answers
  • Which of the liquids you tested (isopropyl alcohol, water, and glycerol) displayed the greatest surface tension (greatest interm
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!