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
Finger [1]
3 years ago
10

A substance that has high reactivity

Chemistry
2 answers:
Fiesta28 [93]3 years ago
5 0
A. easily combines chemically with other substances is your answer.
vichka [17]3 years ago
5 0
A substance that has high reactivity <span>A. easily combines chemically with other substances.</span><span>
</span>
You might be interested in
Radioactive cobalt-60 is frequently used in treating cancer. It took 24 years for a 10 gram sample to decay to 0.625 grams. What
-BARSIC- [3]

Answer:

Half life is 6 years.

Explanation:

T½ = In2 / λ

Where λ = decay constant.

But N = No * e^-λt

Where N = final mass after a certain period of time

No = initial mass

T = time

N = 0.625g

No = 10g

t = 24 years

N = No* e^-λt

N / No = e^-λt

λ = -( 1 / t) In N / No (inverse of e is In. Check logarithmic rules)

λ = -(1 / 24) * In (0.625/10)

λ = -0.04167 * In(0.0625)

λ = -0.04167 * (-2.77)

λ = 0.1154

T½ = In2 / λ

T½ = 0.693 / 0.1154

T½ = 6.00 years.

The half life of radioactive cobalt-60 is 6 years

5 0
2 years ago
What happens to the speed of motion of the particles of a gas when a certain volume of the gas is heated at constant pressure? E
Likurg_2 [28]

Answer:

As the gas is heated, the particles will begin to move faster. ... Because the gas remains at a constant pressure and volume, the particles cannot spread out so they simply move around the container even faster.

4 0
3 years ago
Please help me and explanation would be really awesome thank you!
valentina_108 [34]

Answer:

So the answer would be 10 moles

Explanation:

1) Start with the molecular formula for water: H_{2} O!

2) If there are 10 moles of water use a mole ratio to calculate the moles of oxygen it would produce.

(This question is... interesting... since they chose an element that is diatomic in free state so It could TECHNICALLY be two answers, moles of O or moles of O_{2})

The mole ratio is 1 moles of H_{2}O to 1 moles of O. This is because the coefficient for oxygen in water is simple 1, so the ratio is 1:1.

3) that means if 10 moles of water decompose, they decompose into 10 moles of H_{2} and 10 moles of O.

Extra:

About what I was saying before about the question being slightly interesting:

10 moles of pure oxygen is produced but free state oxygen exists as O_{2} so it could possibly be 10 OR 5! However, notice it says elements. This leads me to believe the answer is 10 (monatomic oxygen) instead of 5 (free state/diatomic oxygen).

I hope this helps!

4 0
2 years ago
What products are always made when any carbon-based fuel
Elodia [21]
Answer:
d) carbon dioxide and water
8 0
2 years ago
Saturns day is roughly 10 hours. it takes about 30 years for Saturn to return to the same point in space. How do saturns periods
sdas [7]
Earth 24 hours, 365 days, so c
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the molar mass of magnesium chloride, MgCl2?
    9·1 answer
  • Did I balance this equation correctly
    9·1 answer
  • 4. At what phase of the cell cycle does the genetic material double?<br><br> BRIANLIST!
    11·2 answers
  • Explain how atoms(ions) are held together in an ionic bond. Give an example of an ionic compound
    7·2 answers
  • “The element vanadium is a solid at room temperature, and its density is 6110 kilograms per meter cubed. Its melting point is 19
    8·2 answers
  • The steps to balancing a neutralization reaction when given a verbal description can be summarized as follows: Write the chemica
    8·1 answer
  • A medical lab technician measures the mass of cholesterol in a blood sample. the mass is ×3.58110−5g . what is the mass in micro
    6·1 answer
  • What is CaF2(aq) + Rb
    8·1 answer
  • 30 POINTS HELP Which idea was supported by Aristarchus, Copernicus, and Galileo?
    11·2 answers
  • Lana is testing her hypothesis that marigolds grow faster in red light than in yellow light. If the plants in yellow light grow
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!