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lara31 [8.8K]
2 years ago
5

1) What is the time a projectile object is in flight (in the air) if it is launched at a velocity of 15

Chemistry
1 answer:
tensa zangetsu [6.8K]2 years ago
7 0

Answer:

So the degree angle will be horizontally

Explanation:

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In a 1.0× 10–6 M solution of Ba(OH)2(aq) at 25 °C, identify the relative molar amounts of these species.
Marysya12 [62]
Thank you for posting your question here. Below is the solution:

HNO3 --> H+ + NO3- 
<span>HNO3 = strong acid so 100% dissociation </span>
<span>** one doesn't need to find the molarity of water since it is the solvent </span>

<span>0M HNO3 </span>
<span>1x10^-6M H3O+ </span>
<span>1x10^-6M NO3- </span>
<span>1x10^-8M OH-.....the Kw = 1x10^-14 = [H+][OH-] </span>
<span>you have 1x10^-6M H+ so, 1x10^-14 / 1x10^-6 = 1x10^-8M OH- </span>


<span>1x10^-6 Ba(OH)2 = strong base, 100% dissociation </span>
<span>1x10^-6M Ba2+ </span>
<span>2x10^-6M OH- since there are 2 OH- / 1 Ba2+ </span>
<span>0M Ba(OH)2 </span>
<span>5x10^-9M H3O+</span>
4 0
3 years ago
Which of the following is not true of Mendel's experiment?
Karolina [17]

I believe it is B. Green pods are recessive.

5 0
3 years ago
A mixture of lipids is applied to a silica gel column, and the column is then washed with increasingly polar solvents. the mixtu
Ket [755]
YOu need some fresh memes sir

6 0
3 years ago
How many liters of a 4.0 M CaCl2 solution would contain 2 moles of CaCl2?
nekit [7.7K]

Answer:

The answer to your question is 0.5 liters

Explanation:

Data

[CaCl₂] = 4.0 M

number of moles = 2

volume = ?

Process

To solve this problem use the formula of Molarity and solve it for volume, substitute the values and simplify.

-Formula

Molarity = moles / volume

-Solve for volume

Volume = moles / molarity

-Substitution

Volume = 2/4

-Simplification

Volume = 0.5 liters.

5 0
3 years ago
What is the moden periodic law​
Zarrin [17]

Answer:

Here's what I get  

Explanation:

The modern periodic law states that the physical and chemical properties of the elements are periodic functions of their atomic numbers.

5 0
3 years ago
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