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Mars2501 [29]
3 years ago
7

Iton is a transition element a) Give two physical properties of iron tgat are similar to sodium. b) Give three physical properti

es of iron and its ions that are different from sodium and its ions
Chemistry
1 answer:
Pepsi [2]3 years ago
8 0

Answer:

idk

Explanation:

ok

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state two methods that can be used to prepare chlorine from rock salt.write an equation in each case​
Levart [38]

Answer:

electrolysis of brine

Explanation:

Rock salt deposits are usually mined; occasionally water is pumped down, and brine which contain 25 percent of sodium chloride is found

so d brine is electrolyzed to produce chlorine

7 0
2 years ago
(a) 12 cm + 0.031 cm + 7969 cm =
andreev551 [17]

Answer:

7981.031

Explanation:

8 0
3 years ago
Read 2 more answers
Please someone solve this and tell me how you solve it
lianna [129]

Answer:

Supersaturated.

Explanation:

Hello there!

In this case, according to this solubility chart, we infer that for NH3, the solubility starts at 90 grams of NH3 that are soluble in 100 g of water at 0 °C and ends in about 8 g in 100 g of water at 100 °C for a saturated solution.

However, since we are asked for the solubility of NH3 at 20 °C, we can see that, according to the table and the curve for NH3, about 52 g of NH3 are soluble in 100 g of water; thus, for the given 60 g of NH3, we will say that 8 grams will remain undissolved, and therefore, this solution will be supersaturated.

Regards!

8 0
3 years ago
Now can you answer pls
crimeas [40]

Answer:

cytoplasm is A, Dna is C, and nucleas is B

Explanation:

3 0
3 years ago
How many moles of helium gas are contained in a 4.0 L flask at STP
Ratling [72]
First, you convert liters to moles. 
Usually you have to go to grams but this is STP.

Get moles directly by dividing the 4 by STP (22.4)
\frac{4}{22.4} =0.17857142857
About 1.8*10^{-1} or 0.18 moles whichever your teacher prefers

3 0
3 years ago
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