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Ksivusya [100]
3 years ago
12

In 2018, Micah Williams, of Benson High School, set the Oregon High School State Track meet record in the 100 meter dash by post

ing a time of 10.42 seconds. What was his average speed?​
Chemistry
1 answer:
Nina [5.8K]3 years ago
7 0

Answer:

Average speed = 9.59 m/s

Explanation:

Given data:

Distance = 100 m

Time taken = 10.42 s

Average speed = ?

Solution:

Formula:

Average speed = distance covered / time taken

by putting values,

Average speed = 100 m / 10.42 s

Average speed = 9.59 m/s

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How much 6.0 m hno3 is needed to neutralize 39ml of 2 m koh
Sever21 [200]

Answer:

13mL

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

HNO3 + KOH —> KNO3 + H2O

From the balanced equation above, we obtained the following data:

Mole ratio of the acid (nA) = 1

Mole ratio of the base (nB) = 1

Step 2:

Data obtained from the question.

This includes the following:

Molarity of the acid (Ma) = 6M

Volume of the acid (Va) =?

Volume of the base (Vb) = 39mL

Molarity of the base (Mb) = 2M

Step 3:

Determination of the volume of the acid.

Using the equation:

MaVa/MbVb = nA/nB, the volume of the acid can be obtained as follow:

MaVa/MbVb = nA/nB

6 x Va / 2 x 39 = 1/1

Cross multiply to express in linear form

6 x Va = 2 x 39

Divide both side by 6

Va = (2 x 39)/6

Va = 13mL

Therefore, the volume of the acid (HNO3) needed for the reaction is 13mL

5 0
3 years ago
Which geoigic feature is most likey to from a mid
zvonat [6]

should be ocean ridges im not sure hope this helps tho

6 0
3 years ago
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Which substance is the reducing agent in this reaction? 2KMnO4+3Na2SO3+H2O→2MnO2+3Na2SO4+2KOH
olganol [36]
I believe <span>Na2SO3  is the solution to the problem.</span>
6 0
3 years ago
Read 2 more answers
Convert 22 ml in to liters
prisoha [69]

Answer:

0.022

Explanation:

milliter (ml) = 1 cubic centimeter (cc)= 0.001 liters (l) = 0.000001 cubic meters (m3).

1 ml = 0.061024 cubic inches (in3) ; 1 in3 = 16.4 ml.

1 ml = 0.000035 cubic feet (ft3); 1 ft3 = 28,317 ml.

1 ml = 2.64 x 10-4 U.S. gallons (gal); 1 gal = 4.55 x 103 ml.

8 0
3 years ago
A sample of rainwater is tested with the indicator bromothymol blue and it turns yellow. What is most likely PH of rainwater? 4,
kirill [66]

Answer:

4

Explanation:

bromothymol blue turns yellow betwwen then pH levels of 2 and 6

7 0
4 years ago
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