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
Liula [17]
4 years ago
14

A scientist is trying to determine whether a certain substance is radioactive. Which question would be most helpful to ask?

Chemistry
1 answer:
oksian1 [2.3K]4 years ago
3 0
Well a question to ask would be if the mass of the material has changed significantly as that would determine that the substance is radioactive or if there have been any high readings found by a Geiger meter in certain period of time

hope that helps 
You might be interested in
This is Science
Molodets [167]

Answer:

Filament

Explanation:

The style, ovary and the stigma is present in the pistil thus the gilament is not a part of the pistil

7 0
3 years ago
Read 2 more answers
The number of grams per mole of something is known as?​
Whitepunk [10]

Answer:

Judging from the wording of he question, you mean units. If that is indeed the case, the answer is g/Mol (grams per mol)

Let me know if my interpretation is incorrect and please tell me what you are actually trying to find.

7 0
4 years ago
Determine the molar mass of the following elements. Include units in your answer.
son4ous [18]
Do the atomic mass times the number of atoms you have. That'll give you your answer. Hope it helps!
8 0
3 years ago
1. How many molecules are in 4.5 moles?
Naily [24]

Answer:

2.4 ⋅ 10 24

Explanation:

All that you need to know here is that in order for a given sample of water to contain exactly  1  mole of water, it must contain  6.022 ⋅ 10 23  molecules of water.

This is known as Avogadro's constant and essentially acts as the definition of a mole. If you have  6.022 ⋅ 10 23  molecules of water, then you can say for a fact that you have  1  mole of water.

6 0
3 years ago
if the half-life of substance A is 1.5 years, how long would it take a 8.0 gram sample of substance A to decay such that only 1.
Fudgin [204]

Answer:

4.5

Explanation:

3 0
3 years ago
Other questions:
  • How many sulfur dioxide molecules are there in 1.80 mol of sulfur dioxide
    15·2 answers
  • animals need to consume other organisms for energy. how would you categorize them based on that information?
    14·1 answer
  • Karen has a mass of 53 kg as she rides the up escalator at woodley park station of the washington
    7·1 answer
  • What is the order in which electrons start filling the orbitals?
    12·2 answers
  • What is the relationship between wind and ocean waves
    13·1 answer
  • How much heat will be given off when 1500 g of water cools down by 20 C? please help and explain:)))
    12·1 answer
  • Work = Force x Distance, calculate the amount of work done on an object
    5·1 answer
  • What is the density of an object with 525 grams and a volume of 15cm3?
    12·2 answers
  • What the answer I’m on a midterm and can’t seem to find it help
    13·1 answer
  • The freezing point of a substance is -20°C. Its boiling point is 120°C.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!