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Fiesta28 [93]
3 years ago
7

The 38 elements in groups 3 through 12 of the periodic table are called "Alkaline Earth Metals" O True O False​

Chemistry
2 answers:
kotykmax [81]3 years ago
5 0

Answer:

FALSE

they're called transition metals

tekilochka [14]3 years ago
5 0

Answer:

false

Explanation:

The 38 elements in groups 3 through 12 of the periodic table are called "transition metals." As with all metals, the transition elements are both ductile and malleable, and conduct electricity and heat.

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What is the mass of 4.32 mol GaI3? <br> 455 g <br> 1,230 g <br> 1,720 g <br> 1,950 g
denis23 [38]

Answer:

D. 1,950 g

Explanation:

I completed the test and it is the correct answer!

8 0
3 years ago
The addition of 250.0 J to 30.0 g of copper initially at 22.0°C will change its temperature to what final value? (Specific heat
WINSTONCH [101]

Answer:

Final temperature = 43.53^{\circ} C

Explanation:

Given that,

Heat added, Q = 250 J

Mass, m = 30 g

Initial temperature, T₁ = 22°C

The Specific heat of Cu= 0.387 J/g °C

We know that, heat added due to the change in temperature is given by :

Q=mc\Delta T\\\\Q=mc(T_2-T_1)\\\\\dfrac{Q}{mc}=(T_2-T_1)\\\\T_2=\dfrac{Q}{mc}+T_1

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T_2=\dfrac{250}{30\times 0.387}+22\\\\=43.53^{\circ} C

So, the final temperature is equal to 43.53^{\circ} C.

8 0
3 years ago
Write the formula for chromium III acetate
Tamiku [17]

Answer:

C6H9CrO6

Explanation:

6 0
3 years ago
How many total carbon atoms are in the structure 2 methyl, 3, 4 diethyl decane?
makvit [3.9K]

Answer:B

15 carbon atoms

6 0
3 years ago
6 moles of potassium permanganate (KMnO4) are dissolved in enough water to make a 3M solution. What is the volume of the solutio
Yanka [14]

Answer:

2000 mL

Explanation:

Given data:

Number of moles KMnO₄ = 6 mol

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Volume of solution in mL = ?

Solution:

Formula:

Molarity  = number of moles of solute / volume of solution in L

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volume of solution in L = 2 L

Now we convert the L into mL:

1 L = 1000 mL

2 L × 1000 mL / 1 L

2000 mL

7 0
3 years ago
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