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Luden [163]
3 years ago
9

Is radium usually considered as part of the alkaline earth category in terms of chemistry?

Chemistry
1 answer:
victus00 [196]3 years ago
4 0

Explanation:

Radium (atomic number 88) has similar properties to barium and is also in the Group 2 category. However, radium is a radioactive element and is generally under the category of radioisotopes in addition to being an alkaline earth metal, because it is not a stable element.

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How are the elements in the current periodic table arranged
natka813 [3]

Answer:

Elements in the periodic table are arranged from atomic number, increasing as you move more towards the right direction.

6 0
3 years ago
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Mrs. Jacobson is pushing a fridge to the right with a force of 100 N. The force pushing it
alex41 [277]

Answer:

A

Explanation:

Let's illustrate this; see the attachment.

We see that Mrs. Jacobson is pushing to the right with a force of 100 N and there is another opposite force pushing with a force of 15 N. Since these are in opposite directions, we can say that the force opposite to Mrs. Jacobson is pushing the fridge -15 N to the right (instead of 15 N to the left).

The net force would then be:

100 N + (-15 N) = 85 N to the right

The answer is A.

8 0
4 years ago
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Why are gold and platinum sutible for making jewellery ? ​
Anon25 [30]

Answer:

Platinum Gold and silver are used to make jewellery because of the following reasons. They are highly lustrous metals which are resistant to corrosion. They are highly malleable and ductile so can be transformed into any shape or design.

Explanation:

6 0
3 years ago
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Which ph is more acidic, a ph of 3, a ph of 7, or a ph of 9?.
Andrei [34K]

Answer:

pH of 3.

Explanation:

pH 1 to 6 is acidic.

7 is neutral.

8 to 14 is alkaline

8 0
3 years ago
A solution is prepared by dissolving 106.3 g HCl(g) in enough water to make 175.0 L of solution. The ph of this solution is
DedPeter [7]

Answer:

moles HCl = 101.2 g /36.461 g/mol=2.78

[H+]= 2.78 mol/ 150 L =0.0185

pH = - log 0.0185=1.73

1.73 is the answer

3 0
3 years ago
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