Calculate the size of the unknown angles with reasons

Answers 2

Step-by-step explanation:

Subtract the given supplementary angle (its value in degrees) from 180 to calculate the size of the angle in question

Answer:

subtract it from 180degreee

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12-8y-x(3y-4)(3-2y) factorize​

Answer:

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please anyone answer it​
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Since, 3.38 g of carbon dioxide are obtained, the mass of C present in the sample of welding fuel gas is

12/44×3.38=0.92 g.

Since, 0.690 g of water are obtained, the mass of hydrogen present in the welding fuel gas sample is

2/18×0.690=0.077g.

The percentage of C is

0.92/0.92+0.077×100=92.3 %.

The percentage of H is

0.077/0.92+0.077 ×100=7.7%.

.

Explanation:

(i) The number of moles of carbon =

92.2/12

=7.7.

The number of moles of hydrogen =

7.7

=7.7.

The mole ratio C:H=

7.7/1

7.7

=1:1.

Hence, the empirical formula of the welding fuel gas is CH.

(ii) The weight of 10.0 L of gas at N.T.P is 11.6 g.

22.4 L pf gas at N.T. P will weigh

11.6/10.0×22.4=26g/mol

This is the molar mass.

(iii) Empirical formula mass is 12+1=13.

Molecular mass is 26.

The ratio, n of the molecular mass to empirical formula mass is

26/13

=2.

The molecular formula is 2(CH)=C2H2

Answer:

here is ur answer

Explanation:

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what is the meaning of gonna​ and share your num...

Answer:

Gonna is used in written English to represent the words 'going to' when they are pronounced informally. Then what am I gonna do? arrived or reached?

2 root 3 multiplied by x (variable)

Answer:

Step-by-step explanation: 2 root 3 is 1.2599210498949

Now 1.2599210498949 X x

Can be written as 1.2599210498949x

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