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Iteru [2.4K]
3 years ago
13

• What is an algebraic expression? An exp

Mathematics
1 answer:
zavuch27 [327]3 years ago
4 0
1. its 23, because if you were to substitute 5 for x, 7(5) = 35 and if you were to substitute -3 for y, 4(-3) = -12. Therefore, 35 + -12 = 23.
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A student sets up two reactions. Reaction 1 uses 0.180 mol/L of reactant, and Reaction 2 uses 0.510 mol/L of reactant. How many
il63 [147K]

Given the data from the question, reaction 2 is 2.83 times faster compared to reaction 1

<h3>Data obtained from the question</h3>
  • Molarity of reaction 1 (R₁) = 0.180 mol/L
  • Molarity of reaction 2 (R₂) = 0.510 mol/L
  • Comparison =?

<h3>How to determine the comparison of reaction 2 to reaction 1</h3>

We can determine how many times faster is reaction 2 to reaction by doing the following:

R₂ / R₁ = 0.510 / 0.180

R₂ / R₁ = 2.83

Cross multiply

R₂ = 2.83 × R₁

From the above illustration, we can see that reaction 2 is 2.83 times faster than reaction 1

Learn more about Graham's law of diffusion:

brainly.com/question/14004529

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4 0
1 year ago
If the black cloth absorbs heat energy, why was the ice cube at room temperature covered with the black cloth the slowest to mel
lozanna [386]
The cloth acts as insulation it doesn't matter the colour . And as to Black cloth attracting Heat this is only partially true if you put a black cloth in the room with no windows and the temperature of the room was 70° the cloth will not get any hotter black cloth absorbs infrared energy this makes it feel warmer
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2 years ago
What is the product of 25 x 24
Vanyuwa [196]

Answer:

600

Step-by-step explanation:

hope it helps :)

7 0
2 years ago
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Find the distance between the points H and C.<br><br> A) 0 <br> B) 2 <br> C) 4 <br> D) 8
RSB [31]

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Step-by-step explanation:

1.b

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3.d

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6 0
3 years ago
You have 59 to spend on lip balm and hand sanitizer. The equation 1.5x + 2.5y = 9 represents this situation, where x is tubes of
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Answer:

Step-by-step explanation:

you have to keep the x and the y sepret and then you can divied one by nine then you get the answer so there you go

3 0
2 years ago
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