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blondinia [14]
2 years ago
12

Mitosis occurs during which phase?

Chemistry
1 answer:
lara [203]2 years ago
8 0

Answer:

Prophase

Explanation:

Prophase is the first stage in mitosis, occurring after the conclusion of the G2 portion of interphase. During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase.

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A 45.7 block of an unknown metal at 74.2 °C is placed in 72.9 g of water at 15.9 °C. If the
g100num [7]

Answer:

0.934J/g°C

Explanation:

Using Q = mc∆T

However, in this question;

(Q)water = -(Q)metal

(mc∆T)water = -(mc∆T)metal

According to the information provided in the question;

For water;

m = mass = 72.9g

c = specific capacity of water = 4.184 J/g°C

∆T = 22.9 - 15.9 = 7°C

For metal;

m = mass = 45.7g

c = specific capacity of water = ?

∆T = 22.9 - 72.9 = -50°C

(mc∆T)water = -(mc∆T)metal

(72.9 × 4.184 × 7) = -(45.7 × c × -50)

2135.0952 = -(-2285c)

2135.0952 = 2285c

c = 2135.0952/2285

c of metal = 0.934J/g°C

3 0
3 years ago
An isotope of the element fluorine has 9 protons and 10 neutrons. What is the name of this isotope?fluorine
Mumz [18]

Answer:

Fluorine

Explanation:

Data obtained from the question include:

The isotope of fluorine has:

Proton = 9

Neutron = 10

The atomic number is the proton number of the atom.

Therefore, the atomic number = 9

Mass number = proton + Neutron

Mass number = 9 + 10

Mass number = 19

Now comparing the above with the fluorine atom in the periodic table. We'll discover that the isotope is actually fluorine atom.

Therefore, the name of the isotope is fluorine

8 0
3 years ago
Read 2 more answers
What is the electron configuration of the iodide ion?
Ede4ka [16]

Answer:

2.2.3

Explanation:

6 0
3 years ago
In an experiment, what is the purpose of the control group?
Burka [1]

A control group is the comparison group that helps to "make sure your experiment works." A control group is separated from the rest of the experiment and nothing happens to it kinda like a controlled variable.  Controlled variables are the variables in a experiment that remains the same for example a temperature, time, type of products, etc..

Hope this helps!

7 0
3 years ago
Read 2 more answers
Balance the equation in the box. Click in the answer box to activate the palette. N2(g) + H2(g) → NH3(g)
lesantik [10]

Answer:

N2(g) + 3H2(g) → 2 NH3(g)

Explanation:

N2(g) + H2(g) → NH3(g)

We start equaling the number of N atoms in both sides multiplying by 2 the NH3.

N2(g) + H2(g) → 2 NH3(g)

So we equals the H atoms (there are six in products sites)

N2(g) + 3 H2(g) → 2 NH3(g)

7 0
3 years ago
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