Predict the missing component of each reaction.

MgO + ? → Mg(OH)2

2MgO → ?

A. 2Mg + H2O

B. 2Mg + O2

C. MgOH + O2

D. MgO + O2

Answers

Answer 1

Answer:

In the first equation, it's H20 but the second is B

2Mg + 2O2

Answer 2

here are the answers for both questions on this slide as of edge 2021, the 2nd is the one asked here.

1. 2KClO3 → 2KCl + ?

2Na + Cl2 → ?

A.) 2NaCl

2. MgO + ? → Mg(OH)2

2MgO → ?

B.) 2Mg + O2


Related Questions

3 pls pls pls help me

Answers

Answer:

I think the answer is c

Step-by-step explanation:

There are five red, 3 blue and a white marble in a jar. What is the probability of selecting
a white marble, replacing it, then selecting a white marble again?

Answers

Answer:

1/81 I think now 100% sure though

Could I get help with 8-11 please :(

Answers

Answer:

8. m∠1 = 64, m∠2 = 26, m∠3 = 36

9. m∠1 = 73, m∠2 = 58, m∠3 = 107, m∠4 = 49, m∠5 = 131

10. m∠1 = 34, m∠2 = 52, m∠3 = 38, m∠4 = 94, m∠5 = 56, m∠6 = 38

11. m∠1 = 62, m∠2 = 71, m∠3 = 109, m∠4 = 35, m∠5 = 109, m∠6 = 29, m∠7 = 47, m∠8 = 62

Step-by-step explanation:

8. m∠1 = 180 - (75 + 41) = 180 - 116 = 64

m∠2 = 90 - 64 = 26

m∠3 = 90 - 54 = 36

9. m∠3 = 180 - 73 = 107

m∠1 = 73

m∠2 = 180 - (73 + 49) = 180 - 122 = 58

m∠4 = 49

m∠5 = 180 - m∠4 = 180 - 49 = 131

10. m∠6 = 90 - 52 = 38

m∠3 = m∠6 = 38, m∠2 = 52

m∠5 = 180 - (86 + 38) = 180 - 124 = 56

m∠1 = 90 - 56 = 34

m∠4 = 180 - (34 + 52) = 180 - 86 = 94

11. m∠2 = 71

m∠3 = m∠5 = 180 - 71 = 109

m∠1 = 180 - (47 + 71) = 180 - 118 = 62

m∠4 = m∠2 - 36 = 71 - 36 = 35

m∠6 = m∠2 - 42 = 71 - 42 = 29

m∠7 = 47

m∠8 = m∠1 = 62

why is 3/8 bigger than 3/12​

Answers

Answer:

3/8 is is bigger then 3/12

Step-by-step explanation:

The reason is that 3/12 is equivalent to 2/8 and 3/8 is equivalent to 6/16

Sorry if its wrong! ^^""

As, 0.375> 0.25, so, 3/8 is greater than 3/12.

Here, we have,

To get the answer, we first convert each fraction into decimal numbers.

We do this by dividing the numerator by the denominator for each fraction as illustrated below:

3/8 = 0.375

3/12 = 0.25

Then, we compare the two decimal numbers to get the answer.

0.375 is greater than 0.25.

i.e. 0.375> 0.25, as 0.375 - 0.25 = 0.125

Therefore, 3/8 is greater than 3/12.

Hence, As, 0.375> 0.25, so, 3/8 is greater than 3/12.

To learn more on subtraction click:

brainly.com/question/2346316

#SPJ6

pls help!!!!! i will give brainliest!!!!!

Answers

Answer:

-2

Step-by-step explanation:

all you gotta do is look to see where the line intersects the y axis which is -2 here

please help me this is due tomorrow and I can't figure this out (IXL CC.2 8th grade)
The answer is suppose to look like this (_____,___) AND IF YOU CAN TAKE A SCREENSHOT OF THE GRAPH( picture provided) AND SHOW ME WERE THE LINES MEET.

Answers

Answer:

at point (4,4)

Step-by-step explanation:

Answer:

( 4 , 4 )

Step-by-step explanation:

what is the volume of the prism?

Answers

Answer:

Step-by-step explanation:

h = 3 ft

l*b = 25 sq.ft

Volume = l*b *h

             = 25 * 3

             = 75 cubic feet

Answer:

75ft

Step-by-step explanation:

First you mupilply  [tex]25 x 3 = 75ft[/tex]

and that is it.

Emily went to soccer practice 6 times last month. Each practice is 90 minutes long.
How long did Emily spend at soccer practice last month?

Answers

Answer:

74 days. thanks me later lol nag check out

Answer:

What is 540 minutes or 9 hours spent practicing soccer

Step-by-step explanation:

90*6=540 minutes

540/60(minutes in 1 hour)

Please allow me to know if this helped you by rating and clicking thank you!  Miss Hawaii

[tex]\sf 300+200+200[/tex]

Answers

Step-by-step explanation:

300+200+200 = 700.

so simple

hope this helps you.

Geometry questions need some help

Answers

Step-by-step explanation:

8) x=23sin(48) =17.1m

9) x=11cos42=8.2ft

Distance describes how far an object has moved along its path.


Displacement describes how far an object has moved from its starting point to its final position.

Answers

Step-by-step explanation:

Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion. Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

Answer:

Distance travelled by skateboard is 1.5 miles.

Displacement is 1 mile.

Kerri sold her purse for $351. She had originally purchased it for $316. Calculate her profit or loss percentage.​

Answers

Answer:

$35 profit

Step-by-step explanation:

351-316=35

Answer:

$35

Step-by-step explanation:

she bought it for $316 and sold it for more than she bought it for so we know that she made money.

so all  we have to do is subtract 351 from 316

Lines AB and CD are parallel. Find the measures of the three angles in triangle ABF,Measurement of angle FAB

Answers

Answer:

not enough information

Step-by-step explanation:

in order to even think about solving this we need at 2/3 measurements

like aas, sas, sss ect

[tex]x/6=7/2x=[/tex]

Answers

Answer:

x = √21, x = -√21

please help i need help

Answers

Answer:

fractions

d

its right answer

Answer:

The answer to your question is D Fractions

Step-by-step explanation:

Fractions and decimals are two different ways to represent parts of a whole number.

I hope this helps!

PLEASE HELP!!




























Identify the type of transformation to triangle ABC.

Glide

reflection

Reflection

Rotation

Translation

Answers

Answer:

Step-by-step explanation:

A-Reflection

B-Translation

C-Rotation

D- Glide Reflection

0
1
2.
3
у
8
1
-6
-13
What is an equation that describes the relationship?

Answers

always lovingalways sharingalways helpingalways beautiful and amazing

Step-by-step explanation:

that only know

Guys can u please help i can explain it so i gotta send a photo i always give hearts and 5 stars :D the photo is down below

Answers

Answer:

5x cm

Step-by-step explanation:

Total length of AE = 2x + 3x

= 5x cm

Answer Asap!
<3 THX <3
XOXO Also giving out brainliest!

Answers

Answer:

4,3 becomes 0,0 after the changes

Answer:

32

Step-by-step explanation:

28 29 30

Find the simple interest.
Principal
$160
Rate
5.5%
Time
4 years
The simple interest is
(Simplify your answer.)

Answers

Answer:

$35.20

Step-by-step explanation:

S.I. = (P×R×T)/100

=(160×5.5×4) /100

= (640×55) / 100×10

= (64×55) / 100

= 3520 / 100

= $ 35.20

brainliest plz

The polynomial of degree 5, P(2), has leading coefficient 1, has roots of multiplicity 2 at x = 4 and
x = 0, and a root of multiplicity 1 at 3 3.
Find a possible formula for P(x).
P(x)

Answers

Answer:

[tex]P(x)=x^{5} +x^{4} -5x^{3} +3x^{2}[/tex]

Step-by-step explanation:

Each root corresponds to a linear factor, so we can write:

[tex]P(x)=x^{2} (x-1)^{2} (x+3)\\=x^{2} (x^{2} -2x+1(x+3)\\\\=x^{5} +x^{4} -5x^{3} +3x^{2}[/tex]

Any polynomial with these zeros and at least these multiplicities will be a multiple (scalar or polynomial) of this [tex]P(x)[/tex]

Footnote

Strictly speaking, a value of [tex]x[/tex]  that results in [tex]P(x)=0[/tex] is called a root of  

[tex]P(x)=0[/tex] or a zero of [tex]P(x)[/tex] . So the question should really have spoken about the zeros of [tex]P(x)[/tex]  or about the roots of [tex]P(x)=0[/tex]

can someone please help me with this

Answers

Answer:

∠ R = 58° , ∠ Q = 32°

Step-by-step explanation:

Complementary angles sum to 90°

∠ Q is 26° less than ∠ R , so ∠ Q = ∠ R - 26° , then

∠ Q + ∠ R = 90° , that is

∠ R - 26° + ∠ R = 90°

2 ∠ R - 26° = 90° ( add 26° to both sides )

2 ∠ R = 116° ( divide both sides by 2 )

∠ R = 58°

∠ Q = 58° - 26° = 32°

A pack of 24 crayons costs the manufacturer $0.05 to make and is sold to the stores for $0.25. The
stores sell the crayons for $0.50 during Back to School week.
An equation that represents the mark up cost by the manufacturer is (Select]
. An equation that represents the store mark up cost is (Select]
. A
V
composition of these two functions is (Select)
. It represents
[ Select]
The answers is P(C)=2c P(C) =5c P(C) =10c

Answers

We want to find equations for the different markups for the manufacturer and the stores that sell the crayons.

We know that a pack of 24 crayons costs $0.05 to make.

Is sold to stores for $0.25

The stores sell it for $0.50

Now we want to get the markup equation for the manufacturer, this is:

Markup = 100%*(price - cost)/(cost) = 100%*($0.25 - $0.05)/$0.05 =400%

For the store it is:

Markup = 100%*($0.50 - $0.25)/($0.25) = 100%

For the composition of these two I assume you refer to the total markup (notice that these are not functions, we can't make a composition if we do not have a variable).

Comp = 100%*($0.50 - $0.05)/($0.05) = 900%

If you want to learn more, you can read:

https://brainly.com/question/1099507

Please answer for last question

Answers

Step-by-step explanation:

since you know already that it is a linear equation with a constant change rate (slope), you don't know the equation itself yet ?

you found the change rate (slope).

it is x goes up by 2, and y goes down by 6.

the slope is the ratio y/x representing the y and x changes, and it is always the factor of x.

"down" or "left" means "-","up" or "right" means "+".

the slope here is therefore

-6/2 = -3/1 = -3

so, we know the line function looks like

y = -3x + b

to get b we use one of the x y pairs like (1. 4)

4 = -3×1 + b

7 = b

and the full line function is

y = -3x + 7

Sensei Umeh’s ""Active Hands"" karate program grew from 8 members to 15 last week.  What is the percent of change? 

Answers

Answer:

187.5% increase

Step-by-step explanation:

Percent change formula: [tex]\frac{x_{2}-x_{1}}{x_{1}}[/tex]

Initially, the program had 8 members and ended with 15 so [tex]\frac{15-8}{8}=\frac{7}{8}=0.875=87.5[/tex]

Help please help me

Answers

Answer:Hi

Step-by-step explanation:  

Please Help Me

The ratio of the number of combinations (2n+2) of different objects taken n at a time to the number of combinations of (2n-2) of different objects taken n at a time is 99:7. Find the value of n.​

Answers

The expected value of n is 1.152

The question states that ratio of 2n+2 and 2n-2 = 99:7. This means that

2n+2:2n-2 = 99:7, this also means that

[tex]\frac{2n+2}{2n-2}[/tex] = [tex]\frac{99}{7}[/tex]

If that is so, we can cross multiply so that

99 * (2n - 2) = 7 * (2n + 2), on expanding the bracket, we have

198n - 198 = 14n + 14

198n - 14n = 14 + 198

184n = 212, dividing both sides by 184, we have

n = 212/184

n = 1.152

Therefore, the value of n is 1.152

Read more here https://brainly.com/question/11018135

Please provide the answer for the x and z as seen in the image

Answers

here so x is 5 and z is 2

Sally brought the pizza shown above for lunch which was cut into 10 equal slides what percentage of the pizza did tell they eat if she had four slices

Answers

Answer:

25%

Step-by-step explanation:

Answer:

Sally ate 40% of the pizza and there was 60% of the pizza leftover.

Step-by-step explanation:

A percentage is a rate, number, or amount in each hundred.

There were 10 slices of pizza, she ate 4.

4/10 = 40/100 multiplied by 10, which would let us find the percentage.

Therefore, Sally ate 40% of the pizza and left 60% back.

Hope This Helps!

what is the equation for the line that is parallel to the y-axis and passes through the point (2, -5)?

Answers

Answer:

X = 2

Step-by-step explanation:

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