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
bazaltina [42]
3 years ago
5

Please help me!! thank you so much!!​

Chemistry
1 answer:
Elis [28]3 years ago
4 0

Answer:

13.75

Explanation:

gets halved every 8 days so halved twice

You might be interested in
3. Determine the moles of sodium, Na, containing 7.9x1024 atoms.​
-BARSIC- [3]

Answer:

12.7mol Na.

Explanation:

Hello there!

In this case, according to the concept of mole, which stands for the amount of substance, we can recall the concept of Avogadro's number whereby we understand that one mole of any substance contains 6.022x10²³ particles, for the given atoms of sodium, we can calculate the moles as shown below:

7.9x10^{23}atoms*\frac{1mol}{6.022x10^{23}atoms} \\\\

Thus, by performing the division we obtain:

12.7molNa

Regards!

8 0
3 years ago
Students are studying the effects of beach pollution by counting populations of seagulls at two different beach locations. One l
WARRIOR [948]
The weather/wind direction
6 0
3 years ago
Needed Help...<br> for this work​
guajiro [1.7K]

Answer:

Displacement is the shortest distance travelled by a moving body through a entire journey.

The work done by the man pushing a fixed wall with the force of 100N is zero

work = force * displacement

Explanation:

6 0
3 years ago
Many elements will try to obtain ____ electrons in their outermost energy level (which is very stable) because filling it in may
VladimirAG [237]
I’m pretty sure 8 as well because elctrouns can’t hold more than that
8 0
3 years ago
1) Write the symbol and charge for each individual ion
ololo11 [35]

N -3

Ba +2

Sr +2

F -1

I -1

Ca +2

Mg +2

S -2

S -2

Al +3

//

Ba3N2

SrF2

CaI2

MgS

Al2S3

//

I don't really understand 2.

3 0
2 years ago
Other questions:
  • There are 342 g of sucrose in 1.00 mol of sucrose. What is the molar concentration (molarity) of a solution containing 171 g suc
    7·1 answer
  • Show a sample for calculating frequency from wavelength​
    12·1 answer
  • Help can you match the answers to the definition PLZ Need this ASAP 30 points
    12·1 answer
  • If 7.36 g of sodium metal react, how many grams of sodium hydroxide can be produced
    5·1 answer
  • In a longitudinal wave moving along a spring, what are areas where the coils are farthest apart called?
    5·2 answers
  • What type of soil holds the least amount of water
    11·2 answers
  • How many moles are in 3.612x10^24 atoms of phosphorus?
    13·1 answer
  • WILL GIVE BRAINLIST!!
    12·1 answer
  • Help i cant do this i need this ASAP
    11·1 answer
  • An empty beaker has a measured mass of 27.234 g. When some salt is added to the beaker, the combined mass is 35.9564 g. Calculat
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!