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2 years ago

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]2 years ago

5 0

Answer:

FALSE

they're called transition metals

tekilochka [14]2 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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4K + O2 + 2K20<br> Which statement is true?

Jet001 [13]

Answer:

yes 4K + O2 ------>2K20 is true.

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2 years ago

The movement of fluid materials caused by density differences

Dovator [93]

This movement is known as convection or convection currents. This occurs due to the fact that warmer fluid is of lower density than colder fluid. This causes warmer fluid to rise and colder fluid to sink. This creates circulatory currents within the body of the fluid.

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2 years ago

According to table g, which substance forms an unsaturated solution when 80. grams of the substance are stirred into 100. grams

e-lub [12.9K]

A saturated solution is one in which no more solute is able to dissolve in a given solvent at a particular temperature. Some amount of the solute is left undissolved in the solution.

Unsaturated solution has solute in lower proportions than required to form a saturated solution.

Supersaturated solution has solute in amounts greater than a saturated solution.

We can take the help of solubility curve in order to find out the amount of a salt required to prepare a saturated solution of that salt at a particular temperature.

The solubility of KI at 10 $^{0}C$ is 136 g/ 100 mL water

The solubility of $KNO_{3}$ at $10^{0}C$ is 21 g/100 mL water.

The solubility of $NaNO_{3}$ at $10^{0}C$ is 80 g/100 mL water.

The solubility of NaCl at $10^{0}C$ is 38 g/ 100 mL water.

So the correct answer will be KI, as it would need 136 g KI / 100 mL water to form a saturated solution at $10^{0}C$ .So, if we have 80g KI/ 100mL water it would be an unsaturated solution.

4 0

2 years ago

Read 2 more answers

Select the correct answer. A sealed bottle is full of air. The volume of the bottle is decreased, but the temperature remains co

Zigmanuir [339]

The answer would be c

3 0

3 years ago

Read 2 more answers

You have 150. g of a bleach solution. The percent by mass of the solute, sodium hypochlorite (NaOCI), is 3.62%.

Taya2010 [7]

Answer:

There are 5.43 grams of NaOCl

Explanation:

The given percent by mass of the solute tells us that out of the 150 g of the solution, 3.62% are due solely to the solute.

In other words, <u>the mass of the solute in the solution is</u>:

150 g * 3.62/100 = 5.43 g

Thus, in 150 grams of the given bleach solution, there are 5.43 grams of sodium hypochlorite.

4 0

2 years ago

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

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