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
Contact [7]
3 years ago
10

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mar

k on the sidewalk next to the snail.
What will Julie use the mark for initially?

determining how fast the snail moves
acting as a standard unit of measure
determining the displacement of the snail
acting as a reference point for detecting motion
Chemistry
2 answers:
dexar [7]3 years ago
8 0

Answer:

b-acting as a standard unit of measure

Explanation:

Fofino [41]3 years ago
5 0

Answer:

b

Explanation:

You might be interested in
Process of loss of electron is called
myrzilka [38]
Oxidation is basically lose of electron..

hope it helped
3 0
3 years ago
Read 2 more answers
Is H-3 stable?<br> Is He-3 stable?<br> Is He-5 stable?<br> Is Li-7 stable?<br> Is Be-7 stable?
kiruha [24]

Answer:

no, yes, no, yes, yes

Explanation:

good luck!

8 0
3 years ago
an element has an isotope with a mass of 203.973 amu and and abundance of 1.40%. another isotope has a mass of 205.9745 amu with
ryzh [129]

Answer is: the average atomic mass 217.606 amu.

Ar₁= 203.973 amu; the average atomic mass of isotope.

Ar₂ = 205.9745 amu.

Ar₃ = 206.9745 amu.

Ar₄ = 207.9766 amu.

ω₁ = 1.40% = 0.014; mass percentage of isotope.

ω₂ = 24.10% = 0.241.

ω₃ = 22.10% = 0.221.

ω₄ = 57.40% = 0.574.

Ar = Ar₁ · ω₁+ Ar₂ · ω₂ + Ar₃ · ω₃ + Ar₄ · ω₄.  

Ar = 203.973 amu · 0.014 + 205.9745 amu · 0.241 + 206.9745 amu · 0.221 + 207.9766 amu · 0.574.

Ar = 2.855 amu + 49.632 amu + 45.741 amu + 119.378 amu.

Ar = 217.606 amu.

But abundance of isotopes is greater than 100%.

It should be lead, with the fourth isotope weighs 207.9766 amu and an abundance of 52.40.

7 0
3 years ago
A cough sytup contains 0.5M dextromethophan. How many moles of the cough supressant are in 21.3mL of the cough syrup?
Doss [256]

Answer:

0.0107 mol

Explanation:

Multiply concentration by volume (in liters) to get moles.

0.5 M • 0.0213 L = 0.0107 mol

7 0
3 years ago
Two methods can be used to determine the rate law for a reaction. One is a graphical method used to determine the integrated rat
zloy xaker [14]

Answer:

Initial rate method

Explanation:

The initial rate of the reaction is dictated by the different concentrations of one reactant, while other reactants remain constant.

7 0
3 years ago
Other questions:
  • What is the electron configuration for bromine
    11·1 answer
  • Which type of chemical bond requires the least amount of energy to break?
    8·1 answer
  • A sample of an element has a mass of 34.261 grams and a volume of 3.8 cubic centimeters. To which number of significant figures
    6·1 answer
  • HELP PLEASE WILL GIVE BRAINLIEST ANSWER
    15·1 answer
  • Assuming the metals lose all their valence electrons and the nonmetals gain electrons to complete the s-p subshells, which listi
    13·1 answer
  • Gold ions occur in seawater to the extent of1.0.
    11·1 answer
  • At the beach, Kim noticed that breezes blew from the ocean to the land during the day and from the land to the ocean at night. W
    11·2 answers
  • Do your answers to the previous questions satisfy
    14·1 answer
  • Name two objects which are colourless liquid​
    12·2 answers
  • Calculate the number of moles of NaOH contained in 250. mL of a 0.05M solution.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!