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2 years ago

In one to two sentences, identify the type of model shown and describe the atomic structure of a molecule of water.

Mathematics

1 answer:

ahrayia [7]2 years ago

5 0

The type of model shown in the structure of water given above is ball-and-stick model

The atomic structure consists of two hydrogen atoms and one oxygen atom (H-O-H)

However, water has some characteristics which makes it unique from other liquids. These characteristics include the following:

Water is less dense as a solid than as a liquid.
Water is polar
Water is an excellent solvent
Water has high heat capacity
Water has high heat of vaporization.
Water has cohesive and adhesive properties.
Pure water is colorless
Pure water is always tasteless and odorless.

<h3>What is a compound?</h3>

A compound is a substance which contains two or more elements which are chemically combined together.

Below are some examples of chemical compounds:

Sodium hydroxide
Calcium carbonate
Tetraoxosulphate vi

So therefore, the type of model shown in the structure of water given above is ball-and-stick model

Learn more about chemical compounds:

brainly.com/question/26487468

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What is 193.492 rounded to the nearest hundredth?

AnnZ [28]

The answer is 193.49

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3 years ago

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The sum of two numbers is 21. the second number is six times the first number.

Tamiku [17]

Answer:

Therefore first number is 3 and second number is 18

Step-by-step explanation:

Sum of the two numbers is 21 and Second number is six times the first number

x+6x = 21

7x = 21

x = 21/7

x = 3

substitute x value in 6x to find second number,

= 6x

= 6*3

= 18

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3 years ago

apples are sold in bags of four that cost $5, or bags of six that coast $7 per bag. what is the smallest cost at which you can b

shepuryov [24]

Divide 74 into 4 and 6
74/4 = 18,5
74/6=12,33
so if you buy in bags of 4 you need 19 bags, which costs 5 x 19 = $95
if you buy in bags of 6 you need 13 bags, which costs 7 x 13 = $91
Buying in bags of 6 costs less.

3 0

4 years ago

Find the explicit formula for the geometric sequence cn given below. Note that c1=6.

kodGreya [7K]

The explicit formula for the geometric sequence $c_{n}$ is

$c_{n}=6(\frac{-1}{3})^{n-1}$

Step-by-step explanation:

The formula of the nth term of a geometric sequence is

$a_{n}=a(r)^{n-1}$ , where:

a is the first term of the sequence
r is the common ratio between the consecutive terms

The geometric sequence of $c_{n}$ is 6 , -2 , $\frac{2}{3}$ , $\frac{-2}{9}$ , $\frac{2}{27}$

∵ $c_{1}$ = 6

∵ $r=\frac{c_{2}}{c_{1}}$

∵ $c_{2}$ = -2

∴ $r=\frac{-2}{6}$

- Divide both term by 2 to simplify it

∴ $r=\frac{-1}{3}$

∵ $c_{n}=c_{1}(r)^{n-1}$

- Substitute the value of $c_{1}$ and r in the rule above

∴ $c_{n}=6(\frac{-1}{3})^{n-1}$

The explicit formula for the geometric sequence $c_{n}$ is

$c_{n}=6(\frac{-1}{3})^{n-1}$

Learn more:

You can learn more about the geometric sequence in brainly.com/question/1522572

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6 0

3 years ago

Factorise the following expression using grouping and use binomial products to simplify.

rewona [7]

Answer:

11x-55-5a+ax

11(x-5)+a(x-5)

(11+a)(x-5)

Step-by-step explanation:

First you factor out the common factors

for(11x-55) is would be 11 as both of these figures are the multiple of 11

for(ax-5a) the common factor is a which will be factor out

Then after doing the process you will get

11(x-5)+a(x-5)

then factor out(x-5)which will give you

(11+a)(x-5)

6 0

4 years ago

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