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3 years ago

How many grams of barium chloride are produced when 1.25 x 10 23 molecules of HCI reacts with barium to the following equation?

Mathematics

1 answer:

alexandr1967 [171]3 years ago

5 0

Answer:

21.6

Step-by-step explanation:

2HCl + Ba ----- BaCl2 + H2

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Evaluate csc(-315°).

Maru [420]

Answer:

$\frac{2}{\sqrt{2} } = \sqrt{2}$

Step-by-step explanation:

Notice from the attached image that -315 degrees is the same as 45 degrees.

Recall as well that the csc function is defined as the reciprocal of the sine function: $csc(x)=\frac{1}{sin(x)}$

Then, you need to evaluate $\frac{1}{sin(45)} = 1/\frac{\sqrt{2} }{2} = \frac{2}{\sqrt{2} } =\sqrt{2}$

8 0

2 years ago

A customer went to a garden shop and bought some potting soil for $12.50 and 5 shrubs. The total bill was $62.50. Write and solv

lesya692 [45]

Answer: Equation: $5x = 62.50 - 12.50$ or $x = \frac{62.50-12.50}{5}$

x is the cost of each shrub x = $10

Step-by-step explanation: Total bill = $62.50.

Subtract the cost of potting soil for $12.50 to find the cost of just the shrubs. 5x equals that amount

5x = 62.50 - 12.50

5x = 50 divide both sides by 5

5x/5 = 50/5

x = 10

6 0

3 years ago

-3/2(x - 5) = -12.

Alchen [17]

Answer:

x=13

Step-by-step explanation:

6 0

3 years ago

Will mark branlist for the first one to help

Nikitich [7]

Answer:

17°

Step-by-step explanation:

73°= EGB

EGB+ x° = 90°

so x° = 90°-73° =17°

8 0

3 years ago

What is the slope of the line that goes through the points (-3, 8) and (0, 23)?

Kipish [7]

Answer:

Step-by-step explanation:

(-3, 8) and (0, 23)

m=(y2-y1)/(x2-x1)

m=(23 - 8)/(0+3)

m=(15)/3

m = 5

5 0

3 years ago

Read 2 more answers