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PIT_PIT [208]
3 years ago
14

Which is an alkaline earth metal?

Chemistry
2 answers:
Hitman42 [59]3 years ago
7 0

Answer:

actually there are 6 of them

Explanation:

heres the list:

They are beryllium, magnesium, calcium, strontium, barium, and radium.

hope it helpssss :)

mina [271]3 years ago
7 0

Answer/Explanation:

Alkaline earth metals are similar to Alkali Metals, but they tend to to be harder, denser, and less reactive. However it is too reactive to be found in nature. It is commonly found in batteries, fireworks, flashlights, and cameras. It has Valence Electrons of 2 and the elements in this category are:

  1. Beryllium Be
  2. Magnesium Mg
  3. Calcium Ca
  4. Strontium Sr
  5. Barium Ba
  6. Radium Ra
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Answer:

3rd statment

Explanation:

ray 1 and 2 are same vertical line

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Which would be most suitable for measuring 2.7 mL of ethanol for addition to a reaction with acidified dichromate?
pochemuha

Answer : The correct option is, (C) 10-mL volumeric pipet.

Explanation :

Graduated cylinder : It is a measuring cylinder that is used to measure the volume of a liquid. It has a narrow cylindrical shape. The marked line drawn on the graduated cylinder shows the amount of liquid that has been measured.

Pipet : It is a type of laboratory equipment that is used to measure the volume of a liquid. It is small glass tube and the marked line drawn on the pipet. It is used to accurately measure and transfer of volume of liquid from one container to another.

Volumetric flask : It is a type of laboratory tool that is also used for measuring the volume of liquid. It is used to make up a solution to a known volume. It measure volumes much more precisely than beakers.

Beaker : It is a type of laboratory equipment that has cylindrical shape and it is used for the mixing, stirring, and heating of chemicals.

As per question, we conclude that the pipet is most precise than other devices because in pipet the marking lines are more accurate. Thus, it can be used to measure volume to precision.

Hence, the correct option is, (C) 10-mL volumeric pipet.

8 0
3 years ago
How does the use of synthetic oil impact the natural resource from which they are derived?
omeli [17]
Its destructing the nature
5 0
3 years ago
How many grams of mercury can be produced if 18.0 g of mercury (11) oxide decomposes?
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Answer:

18.0 g of mercury (11) oxide decomposes to produce 9.0 grams of mercury

Explanation:

Mercury oxide has molar mass of 216.6 g/ mol. It gas a molecular formula of HgO.

The decomposition of mercury oxide is given by the chemical equation below:

2HgO ----> 2Hg + O₂

2 moles of HgO decomposes to produce 1 mole of Hg

2 moles of HgO has a mass of 433.2 g

433.2 g of HgO produces 216.6 g of Hg

18.0 of HgO will produce 18 × 216.6/433.2 g of Hg = 9.0 g of Hg

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3 0
3 years ago
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schepotkina [342]

Answer:

negative charge

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