PLZ HELP ME !!! PLZ. What is N for silicon tetrachloride, SiCl4?

Answers

Answer 1

Answer:

Silicon tetrachloride (SiCl4) is indeed an inorganic compound with the chemical formula SiCl4 that appears as a colorless liquid with a foul smell. It reacts with water, producing white solid silicon dioxide and HCl gas. It's soluble in water.

It erodes both flesh and metal.
It is used in the commercial production of high-quality silica.
It has high purity and is utilized in the production of optical fibers.
In benzene, toluene, and water, it dissolves.
It comes in the form of a whitish fuming liquid.
This has a melting point of 68.74 degrees Celsius and a boiling point of 57.65 degrees Celsius.
The crystal structure is tetrahedral.
SiCl4has a coordination geometry of 4.

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What value of x is in the solution set of 4x – 12 ≤ 16 + 8x?
–10
–9
–8
–7

Answers

Hello,

4x-12<=16+8x==> -28<=4x==>x>=-7

-7 is the only value in the set.
Answer D

Answer:

its -7 GG's to all

Step-by-step explanation:

How you work out 7 (-5v-8)

Answers

7(-5v-8)
distribute the 7 to the numbers in the parentheses
7 multiplied by-5v= -35v
7 multiplied by -8= -56
place them: -35v-56
hope i helped (theres a pic too!)

7(-5v - 8)
7(-5v) + 7(-8)
-35v - 56

A central angle in a circle with a radius of 3cm intercepts an arc with a length of 6cm. What is the radian measure of the central angle?

Answers

The correct answer for the question that is being presented above is this one:

Radian Measure can be acquired by using the formula
Radian Measure = arc length / radius
Radian Measure = 6 cm / 3 cm
Radian Measure = 2 rad.

Answer:

The correct answer for the question that is being presented above is this one:

Radian Measure can be acquired by using the formula

Radian Measure = arc length / radius

Radian Measure = 6 cm / 3 cm

Radian Measure = 2 rad.

Find the markup and the selling price of the following item. Round answers to the nearest cent. A chemistry set costing $27.50, marked up 32% on cost.

Answers

The relationship between markup and cost is given in the problem statement.

markup = 0.32 × cost = 0.32 × $27.50 = $8.80

Selling price is the sum of cost and markup.

selling price = cost + markup = $27.50 + 8.80 = $36.30

Let x be marked up price. We have been given that a chemistry set costing $27.50, marked up 32% on cost.

$x=27.50*(32)/(100)$

$x=27.50*.32$

$x=8.8$

Therefore, mark up price is $8.80.

Since we know that selling price of any item equals the sum of cost and mark-up price of the item.

Let us find selling price of our chemistry set.

$\text{Selling price of chemistry set}=27.50+8.8$

$\text{Selling price of chemistry set}=36.30$

Therefore, the selling price of the chemistry set is $ 36.30.

if there are 26 students in each third-grade class and 3 third grade classes in the school, how many students will attend an assembly for third graders if total of 4 student's are absent

Answers

Answer: There are 74 students of third grade attend an assembly .

Step-by-step explanation:

The number of students in third grade classes = 26

The number of third classes in the school = 3

Therefore, the total number of students of third grade in the school = $3*26=78$

Now, it 4 students are absent then the number of third grade students in the school = $78-4=74$

Hence, there are 74 students of third grade attend an assembly .

there will be 74 students

Tom gets $12 off a box of chocolates that had an original $48. what percentage is the discount?

Answers

The discount price is the amount off by the discount divided by the original price.

12 / 48 = .25

The discount is 25% off.
Hope that helped =)

$12
original price $48.

12 ÷ 48 = .25

Turn to percent:-

.25 × 100 = 25
25%

25% was the percentage discount.

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