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ella [17]
3 years ago
9

Could someone help please

Mathematics
1 answer:
777dan777 [17]3 years ago
7 0

The answer is D, hope I helped!

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When calcium metal (Ca) reacts with oxygen gas (O2), it produces the ionic compound calcium oxide (CaO). Write the balanced equa
Vanyuwa [196]

Step-by-step explanation:

Hey there! Down here :D

\bf{Ca + O_2 \longrightarrow CaO}

Now , let's balance it by Multiplying 2 on Calcium Side.

\sf{2Ca + O_2 \longrightarrow 2CaO}

Is the Required Equation.

Hope it helps :)

<h3>Redox Reaction: Is it?</h3>

Yes, this is because:-

\sf{2Ca + O_2 \longrightarrow 2CaO}

  • Here, Calcium acts as Reducing Agent
  • And Oxygen is oxidizing agent.
  • And also, Cao gets oxidized.

It is also a Combination reaction.

\sf{A + B \longrightarrow AB}

  • Here A is Calcium
  • Here B is Oxygen.

6 0
4 years ago
What is 20/10 as a <br><br> mixed number
Lostsunrise [7]
It will just be 2 since 10 goes into 20 2 times

5 0
4 years ago
Read 2 more answers
Line segment AB has endpoints A(1, 4) and B(2, 8) . A dilation, centered at the origin, is applied to AB¯¯¯¯¯ . The image has en
kumpel [21]
To determine the scale factor of the dilation, we determine the distances between the endpoints of the two lines through the equation,
                            d = √(x₂ - x₁)² + (y₂ - y₁)²
 Substituting the known values.

Line Segment 1:     d = √(1 - 2)² + (4 - 8)²  = 4.123

Line Segment 2:     d = √(18 - 14)² + (12 - 1)² = 11.70

Dividing the answers will give us 0.352
7 0
3 years ago
Read 2 more answers
If 3 bars of chocolate cost $15.00 ghana cedis how much will 7 bars cost ratio
Rudiy27

Answer:

7 chocolate bars will cost $35

Step-by-step explanation:

if 3 cost $15 then 1 bar would cost 5 dollars and 5x7=35

here is a ratio:

<u>3</u> = <u>7</u>

15 = 35

6 0
3 years ago
What does the quotient rule of exponents say?
jenyasd209 [6]
It says that you need to divide 2 exponents with the same base, you keep the base and subtract the powers, its kind of like reducing fractions! :)
8 0
3 years ago
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