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velikii [3]
3 years ago
15

Which one of the following can be separated by physical means:

Chemistry
2 answers:
WINSTONCH [101]3 years ago
8 0

Answer:

B mixture can be separated by physical means

valentina_108 [34]3 years ago
7 0

Answer:

this is compound ok or not

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Calculate the number of C atoms in 0.183 mol of C.
Alex Ar [27]

Answer: 1.10x10²³ atoms of C

110202600000000000000000 atoms C

Explanation:The solution process is shown below.

0.183 mole C x 6.022x10²³ atoms C / 1 mole C

= 1.10x10²³ atoms C

or 110202600000000000000000 atoms C

4 0
3 years ago
Using the balanced equation: 2 KCIO3 -> 2 KCI + 3 O2 How many moles of
blagie [28]
I think 4.5 mole may be
3 0
3 years ago
How many atoms of H are in 1 mole of NH3
Gnoma [55]

Answer:

Before you use log you have to multiply the answer of 8.66 mol by 6.02⋅1023 by 3 because the answer of 8.66 mol by 6.02⋅1023 gives you the number of ammonia molecules and in each molecules there are 3 hydrogen atoms present.

Explanation:

3 0
3 years ago
How many significant figures the measurement have 56.0g 0.0004m 1003ml 0.0350s
Setler [38]
In order to do this, we have to first know the significant figure rules.
<span>Rule #1: All non-zero digits are significant. (1234)
 Rule #2: Zeros in front of a number are not significant. (0.093)
 Rule #3: Zeros between non-zero digits are significant. (78309)
 Rule #4: Zeros at the end of a number are significant if there is a decimal point in the number. (0.05470)

So by going by the rules, 56.0g has three sig figs, because there is a decimal point.
0.0004m only has one sig fig, according to Rule #2.
1003ml has 4 sig figs, because the zeroes are wedged in the two sig fig numbers.
And lastly, 0.0350s has 3 sig figs because the number after a decimal point counts.

</span>
7 0
3 years ago
Someone please help me with number 5. no idea what it is.
KATRIN_1 [288]
Answer is Sodium Hydroxide.
5 0
3 years ago
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