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djverab [1.8K]
3 years ago
8

What is the sum of 821 and 153?

Mathematics
1 answer:
Snezhnost [94]3 years ago
3 0
The sum of this is 974
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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
The equation x + 10 = 10, has a solution which is an integer.
Irina-Kira [14]

Answer:

the correct answer is d) i.e the above statement has a solution which is neither positive nor negative

because X+10=10

or,X=10-10

X=0

and 0 is neither positive nor negative

3 0
3 years ago
Zipora wants to construct a triangle that has the following angle measures: 50°, 75°, and 55°. How many triangles can she make?
Alborosie
As sum of all angles of triangle equal to 180 degrees.
First we have to add the angles.
50+75+55
=50+130
=180 degrees

Answer: Zipora can construct exactly one triangle.
4 0
3 years ago
Read 2 more answers
The list shows the number of songs on each album Dakota has downloaded.
PtichkaEL [24]
The frequency table, stem and leaf plot, and histogram are attached.

The histogram looks similar to the stem and leaf plot, except turned on its side.  It is different from the frequency table in shape, but the numbers in the table are the same as the size of the bars.

The height of the bars in the histogram is the same as the number of leaves in the stem and leaf plot, and it is also the same as the numbers in the frequency table.  Using larger intervals will result in larger bars on the histogram and larger numbers in the frequency table; smaller intervals will result in smaller bars and smaller numbers in the table.

3 0
3 years ago
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if you subtract 18 from my number and multipy the difference by -3 the result is -51 what is the number
NNADVOKAT [17]

Answer:

35

Step-by-step explanation:

x-18=y

y*-3=-51

y=17

x-18=17

17+18=x

x=35

3 0
3 years ago
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