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Karolina [17]
3 years ago
13

WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!

Chemistry
2 answers:
Andru [333]3 years ago
8 0

Answer:

A is the answer

Explanation:

Westkost [7]3 years ago
3 0

Hello!

I believe the answer is A) Anaphase.

I hope it helps!

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What is an intensive property? *
Dennis_Churaev [7]

Answer:A property that changes if the amount of substance changes

Explanation:

This is the answer

8 0
3 years ago
How do I solve the following word problem: The half-life of Phosphorus - 32 is 14.3 days. It is used to study a plant's use of f
BaLLatris [955]

Half life is the time that it takes for half of the original value of some amount of a radioactive element to decay.

We have the following equation representing the half-life decay:

A=A_o\times2^{(-\frac{t}{t_{half}})_{}_{}}

A is the resulting amount after t time

Ao is the initial amount = 50 mg

t= Elapsed time

t half is the half-life of the substance = 14.3 days

We replace the know values into the equation to have an exponential decay function for a 50mg sample

A=\text{ 50 }\times2^{\frac{-t}{14.3}}

That would be the answer for a)

To know the P-32 remaining after 84 days we have to replace this value in the equation:

\begin{gathered} A=\text{ 50 }\times2^{\frac{-84}{14.3}} \\ A=0.85\text{ mg} \end{gathered}

So, after 84 days the P-32 remaining will be 0.85 mg

4 0
1 year ago
Calcium has an atomic number of 20. How many electrons does calcium lose when forming an ionic bond with another ion?
oksano4ka [1.4K]
2 electrons. it has electron configuration of 2.8.8.2 hence the last 2 will be lost for it to gain stable.
if you need more explanation on periodic table you can reach me at [email protected]
5 0
3 years ago
On July 8th, I will be 8.51472x10^8 seconds old. How old will I be in years? (Assume 365 days in a year.) Group of answer choice
KatRina [158]

Answer:

26.98

almost 27 years

5 0
3 years ago
At the candy store, gourmet jelly beans sell for $1.15 per ounce. There are 28 students in Alfred's class. If each student eats
saw5 [17]

Answer:

Total cost = $40.25 (Approx)

Explanation:

Given:

Per ounce = $1.15

Number of student = 28

Each student eat = 0.035 kg

Find:

Total cost

Computation:

Total weight of candy = 28 × 0.035 kg

Total weight of candy = 0.98 kg

1 ounce = 0.028 kg (approx).

Total weight of candy = 0.98 kg / 0.028

Total weight of candy = 35 ounce (Approx)

Total cost = 35 × $1.15

Total cost = $40.25 (Approx)

8 0
3 years ago
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