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iris [78.8K]
3 years ago
7

23 POINTS PLEASE ANSWER ASAP

Mathematics
1 answer:
Semmy [17]3 years ago
5 0

Answer:

48 grams O2 and 6 grams H2

Step-by-step explanation:

This is chemistry as well but it's fine.

If you have 3 moles of H20, you need 1.5 moles of O2 and 3 moles of H2, to satisfy the stoichiometry.

There are 32 grams in 1 mole of O2, so 1.5 moles of O2 is 48 grams.

Their are 2 grams in 1 mole of H2, so 3 moles of H2 is 6 grams.

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What is the solution to the system of equations?
Umnica [9.8K]

Answer:

No solution

Step-by-step explanation:

from the second equation x = -8 + 2y

By substituting in the first equation 4(-8 + 2y) -8y = -16

-32 +8y -8y = -16

-32 = -16

the left hand side not equal the write and side

So there is no solution for the system of equations

means the two lines are parallel

6 0
3 years ago
Lorena's backpack has a mass of 15,000 grams.
marshall27 [118]

Answer:

1 kg = 1000 grams

15,000 grams = 15kg

3 0
3 years ago
Select all the numbers that are rational.
anygoal [31]

Answers:

C, D, E

Step-by-step explanation:

A rational number is a integer. It is also a terminating or repeating decimal.

A rational number can be written as a fraction of two integers.

Answer A is not correct because it's decimal never ends. It is also not repeating. A cannot be written as a fraction.

Answer B is not correct because the square root is not a whole number, or a perfect square. The square root has a non-terminating and non-repeating decimal, just like A. B cannot be written as a fraction.

Answer C is rational because it has a terminating decimal.

D and E are integers, which also can be written as fractions.

Out of the options given, C, D, and E have rational numbers, while all others do not.

The answers are C, D, and E.

3 0
3 years ago
A worker is to connect three equal sections of pipe. Each section is 6 2/3 metres in length, as shown below.
Darina [25.2K]

6\frac{2}{3}\implies 6+\frac{2}{3}\implies \stackrel{\textit{three times that much}}{3\left( 6+\frac{2}{3} \right)\implies} (3\cdot 6)+3\left( \frac{2}{3} \right)\implies 18+2\implies \underset{meters}{20}

8 0
3 years ago
Hurry ASAP need help nowww
valina [46]

Answer:

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Step-by-step explanation:

8 0
3 years ago
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