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3 years ago

Cl2 + 2KBr -> Br2 + 2KCl what is the reaction?

Mathematics

1 answer:

Serjik [45]3 years ago

3 0

Answer:

Step-by-step explanation:

→

Given:

300

(a) Mass of

= 300g

Molecular mass of

= 2(35.45) = 70.906 g

No.of moles of

300

70.906

4.23

moles

Mass of

300

Molar mass of

79.9

118.9

No.of moles of

300

118.9

2.52

moles

Now,

Consider the equation:

→

mole of

= 2 moles of

4.23

moles of

= 2x4.23=

8.46

moles

moles of

= 2 moles of

2.52

moles of

2.52

moles

Now convert moles to mass,

Mass of

produced by

8.46

70.906

599.8

Mass of

produced by potassium bromide =

2.52

74.5

187.74

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The number of dogs a family has and the amount of floor cleaner used are known to have a strong positive association. Jaylen con

vesna_86 [32]

Answer:

Jaylen's conclusion is a valid conclusion because it is logical

Step-by-step explanation:

Jaylen's conclusion is a valid conclusion because it is logical. Regardless of not having all the necessary information needed to prove that the number of dogs is the sole main cause for an increase in cleaner usage she can still conclude this. Since dogs naturally bring in dirt from outside and make messes, and since Jaylene notices that families that are known to have more dogs are buying more floor cleaner then she can logically come to this conclusion.

6 0

2 years ago

Read 2 more answers

What is the equation of the midline of the sinusoidal function? [Enter the answer in the box]

Contact [7]

Answer:

$y=0$

Step-by-step explanation:

We are asked to find the equation of mid-line of the given sinusoidal function.

Since the mid-line of a sinusoidal function is the line that runs between the maximum and minimum y-values of the function. We can consider it the middle y-value.

$\text{Mid-line}=\frac{\text{Maximum value+Minimum value}}{2}$

We can see from our given graph that the maximum value of our function is 5 and minimum value of our function is -5.

Upon substituting these values in mid-line formula we will get,

$\text{Mid-line}=\frac{5+(-5)}{2}$

$\text{Mid-line}=\frac{5-5}{2}$

$\text{Mid-line}=\frac{0}{2}$

$\text{Mid-line}=0$

Therefore, the equation of the mid-line of the given sinusoidal function is $y=0$ .

3 0

3 years ago

Write two ratios equivalent to 24 : 9.

notsponge [240]

Answer:

8:3

16:6

Step-by-step explanation:

First, let's check if 9 and 24 have any common factor. If they do have any common ones, we must find the GCF (greatest common factor).

Factors of 9: 1, 3, 9

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

The common factors both of the numbers share and 1 and 3. To find the GCF, simply compare one of the factors to the other.

1 < 3

Now that we know the GCF, we can divide the two numbers in the ratio 24 : 9 by it (3).

24:9

24/3:9/3

8:3

Now that our ratio is simplified, it's going to be much easier to find more ratios that are equivalent. 8:3 is already one equivalent ratio, but if we multiply each number in the ratio by any other number, we can get a new equivalent ratio. Let's multiply each number in the ratio by 2:

8:3

8 ⋅ 2:3 ⋅ 2

16:6

So, another equivalent ratio to 24:9 (and 8:3) is 16:6.

3 0

2 years ago

A positive integer is 4 more than 12 times another. Their product is 5896. Find the two integers.

maksim [4K]

X = integer one
y = integer 2

x = 12y + 4

x * y = 5896

Solve the system of equations

8 0

3 years ago

Read 2 more answers

If you deposit Tsh 4000 into an account paying 9% annual interest compound monthly ,low long until there is Tsh 10000 in the acc

pav-90 [236]

Answer:

It will take 10.63 years.

Step-by-step explanation:

Giving the following information:

Present value (PV)= $4,000

Future Value (FV)= $10,000

Interest rate (i)= 9% annual compounded

To calculate the time required to reach $10,000, we need to use the following formula:

n= ln(FV/PV) / ln(1+i)

n= number of years

n= ln(10,000 / 4,000) / ln(1.09)

n= 10.63

It will take 10.63 years.

5 0

2 years ago