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Kitty [74]
3 years ago
15

(06.05 LC)

Chemistry
1 answer:
agasfer [191]3 years ago
7 0

Answer:

having multiple trials

Explanation:

I hope this helps :)

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3 years ago
Which particle has a mass of 9.11 x 10^-28g and charge of -1?
Jet001 [13]

QUESTION:- Which particle has a mass of 9.11 x 10^-28g and charge of -1?

OPTIONS:-

A. electron

B. proton

C. neutron

ANSWER:-

CHARGE ON PROTRON IS +1 AND IT HAS MASS OF 1.6 \times 10  {}^{ - 27} SO IT CANNOT BE URE ANSWER

THERE IS NO CHARGE ON NEUTRON AND HAS MASS ALMOST EQUAL TO THE PROTON SO IT ALSO CANNOT BE URE ANSWER

MASS OF THE ELECTRON:- 9.11 \times 10^{ - 28}

CHARGE ON ELECTRON:- -1

SO URE ANSWER IS ELECTRON

3 0
3 years ago
Which diagram correctly depicts the trend in electronegativity?<br><br>a.<br>b.<br>c.<br>d. ​
lisabon 2012 [21]

Answer:

b it increases from left to right of the group and it decreases down the period.

3 0
3 years ago
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Phosphorus is obtained primarily from ores containing calcium phosphate.
ladessa [460]

Answer:

33.7 kg

Explanation:

Let's consider calcium phosphate Ca₃(PO₄)₂.

The molar mass of Ca₃(PO₄)₂ is 310.18 g/mol and the molar mass of P is 30.97 g/mol. In 1 mole of Ca₃(PO₄)₂ (310.18 g) there are 2 × 30.97 g = 61.94 g of P. The mass of Ca₃(PO₄)₂ that contains 3.57 kg (3.57 × 10³ g) of P is:

3.57 × 10³ g × (310.18 g Ca₃(PO₄)₂/61.94 g P) = 1.79 × 10⁴ g Ca₃(PO₄)₂

A particular ore contains 53.1% calcium phosphate. The mass of the ore that contains 1.79 × 10⁴ g of Ca₃(PO₄)₂ is:

1.79 × 10⁴ g Ca₃(PO₄)₂ × (100 g Ore/ 53.1 g Ca₃(PO₄)₂) = 3.37 × 10⁴ g Ore = 33.7 kg Ore

8 0
3 years ago
Can someone please help me on this!! It’s due for my next class Will give brainliest and a heart if completed!!
AleksAgata [21]

Answer:

high for one the low for two

5 0
3 years ago
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