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ira [324]
3 years ago
6

How fast do i have to run 250 m in 30 seconds

Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
7 0

Answer:

S=D/T

250/30= 8.33 miles

Explanation:

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Consider the reaction between 15.0 mL of a 1.00 M aqueous solution of AgNO3 and 10.0 mL of a 1.00 M aqueous solution of K2CrO4.
Neporo4naja [7]

Answer:

Species present in the solution after complete reaction: K^+ ,CrO_4^- , Ag_2CrO_4 , K^+ ,NO_3^-

Explanation:

First balance the chemical equation,

2AgNO_3 + K_2CrO_4 =Ag_2CrO_4 + 2KNO_3

calculation of mili moles of each:

mili mole= volume in ml \times molarity

mili mole of AgNO3= 15mili mole;

mili mole of K2CrO4=10 mili mole;

From balance equation,

2 mili mole  of AgNO3 reacts with 1 mili mole of K2CrO4

hence 1 mili mole  of AgNO3 reacts with 0.5 mili mole of K2CrO4

15 mili mole  of AgNO3 reacts with 7.5 mili mole of K2CrO4

so only 7.5 milimole will be used in the reaction and 2.5 mili mole left in solution.

species present in the solution after complete reaction:

K^+ ,CrO_4^- , Ag_2CrO_4 , K^+ ,NO_3^-

K_2CrO4 , KNO_3 are soluble in water so it will dissociate in the solution

7 0
4 years ago
N2(g) + 3H2(g) => 2NH3(g) Write the reaction again as a balanced reaction
Evgen [1.6K]

Answer:Consider the reaction N2(g) + 3H2(g) =; 2NH3(g). If hydrogen gas is added to this system at equilibrium, will the reaction shift towards reactants

8 0
3 years ago
In terms of intermolecular forces why ethanol has a much higher boiling point than ethene at standard point
leva [86]
Ethanol contains an alcohol group (-OH), which includes hydrogen bonding. Hydrogen bonding is stronger than other IMFs such as Van der Waals forces and Dipole-Dipole.

Ethene only has Van der Waals forces as it is an alkene with only C-H or C-C bonds. These means that the forces are not as strong.

Since ethanol contains hydrogen bonding, it will take a higher temperature in order to break these bonds, and thus results in a higher boiling point than ethene. 
6 0
3 years ago
The recommended dietary allowance for calcium for teenage children is 1,300 mg per day.
PtichkaEL [24]

Answer:

c) 35 fl oz

Explanation:

Hello,

In this case, to compute the recommended amount of calcium that the teenager must drink, one performs the following relationship:

8.0-fl \ oz -->298mg\\x-->1,300mg

Solving for x, one gets:

x=\frac{8.0-fl \ oz *1,300mg}{298mg} \\x=35-fl \ oz

Best regards.

5 0
4 years ago
Does the oxidant cause oxidation or reduction?
kvasek [131]
An oxidant or oxidizing agent is the substance in the redox reaction which undergoes reduction. Reduction occurs when the substance's charge has lowered after the reaction.The other process where the charge increases is called oxidtion.
8 0
4 years ago
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