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densk [106]
3 years ago
14

Write the complete balanced equation for the reaction between barium oxide (BaO) and water (H2O). You do not need to make the su

bscripts smaller; just write them out as regular numbers. For example: H2O.
Mathematics
2 answers:
bulgar [2K]3 years ago
4 0
So what do we need to do
uysha [10]3 years ago
4 0

Answer:

The balanced chemical equation is ;

BaO(s)+H_2O(l)\rightarrow Ba(OH)_2(aq)

Step-by-step explanation:

When barium hydroxide react with water it gives an alkaline solution of barium hydroxide.

The balanced chemical equation is given as:

BaO(s)+H_2O(l)\rightarrow Ba(OH)_2(aq)

according to stoichiometry,when 1 mole of barium oxide reacts with 1 mole of water it gives 1 mole of barium hydroxide.

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Eight members of an origami club will make a paper chain together. The chain is 4 feet long. Each member will make an equal part
Bond [772]
Each member will make 0.5 feet of the chain. I cant draw the picture 
5 0
3 years ago
Read 2 more answers
Find the surface area of a cylinder with a base radius of 2 in and a height of 3 in.
Dennis_Churaev [7]

Answer:

62.8 in

Step-by-step explanation:

formula to find surface area of cylinder = 2πrh + 2πr²

2 × 3.14 × 2 × 3 + 2 × 3.14 × 2²

37.68 + 25.12

62.8 in

4 0
3 years ago
A box contains 5 red and 5 blue marbles. Two marbles are withdrawn randomly. If they are the same color, then you win $1.10; if
topjm [15]

Answer:

a) The expected value is \frac{-1}{15}

b) The variance is  \frac{49}{45}

Step-by-step explanation:

We can assume that both marbles are withdrawn at the same time. We will define the probability as follows

#events of interest/total number of events.

We have 10 marbles in total. The number of different ways in which we can withdrawn 2 marbles out of 10 is \binom{10}{2}.

Consider the case in which we choose two of the same color. That is, out of 5, we pick 2. The different ways of choosing 2 out of 5 is \binom{5}{2}. Since we have 2 colors, we can either choose 2 of them blue or 2 of the red, so the total number of ways of choosing is just the double.

Consider the case in which we choose one of each color. Then, out of 5 we pick 1. So, the total number of ways in which we pick 1 of each color is \binom{5}{1}\cdot \binom{5}{1}. So, we define the following probabilities.

Probability of winning: \frac{2\binom{5}{2}}{\binom{10}{2}}= \frac{4}{9}

Probability of losing \frac{(\binom{5}{1})^2}{\binom{10}{2}}\frac{5}{9}

Let X be the expected value of the amount you can win. Then,

E(X) = 1.10*probability of winning - 1 probability of losing =1.10\cdot  \frac{4}{9}-\frac{5}{9}=\frac{-1}{15}

Consider the expected value of the square of the amount you can win, Then

E(X^2) = (1.10^2)*probability of winning + probability of losing =1.10^2\cdot  \frac{4}{9}+\frac{5}{9}=\frac{82}{75}

We will use the following formula

Var(X) = E(X^2)-E(X)^2

Thus

Var(X) = \frac{82}{75}-(\frac{-1}{15})^2 = \frac{49}{45}

7 0
3 years ago
Evaluate for given replacement
jasenka [17]
First, plug in 7 for m

|6 - 2(7)|
|6 - 14|
|-8|
since it's an absolute value, the answer will be positive
answer: 8
4 0
3 years ago
Baxter is thinking about buying a car. The table below shows the projected value of two different cars for three years.
saw5 [17]

Car 1: It is an exponential function that is given as P = 18,500 (0.9595)ⁿ and the price after 10 years is $12,235.5.

Car 2: It is a linear function that is given as 2000x + 3y = 55500 and the price after 10 years is $11,833.33.

And Yes, there is a significant difference.

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

A function is a statement, rule, or law that establishes the connection between two variables. In mathematics, functions are everywhere and are necessary for constructing physical connections.

Baxter is thinking about buying a car. The table below shows the projected value of two different cars for three years.

Car 1 (value in dollars)

Year 1: 18,500

Year 2: 17,390

Year 3: 16,346.60

Car 2 (value in dollars)

Year 1: 18,500

Year 2: 17,500

Year 3: 16,500

The exponential function describes car 1.

Then the function will be

\rm P = 18500\times (0.95995)^n

The linear function describes car 2.

\rm y \ - \ 18500 = \dfrac{-2000}{3}(x - 0)\\\\\\3y - 55500 = -2000x\\\\\\2000x +3y = 55500

Then the value of the car 1 after 10 years will be

\rm P = 18500\times (0.95995)^{10}\\\\\\P = \$ \ 12,235.5

Then the value of the car 2 after 10 years will be

\rm 2000 \times 10 +3y = 55500\\\\y =  \$ \ 11,833.33

Yes, there is a significant difference.

More about the function link is given below.

brainly.com/question/5245372

#SPJ1

5 0
2 years ago
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