3 years ago

Anyone listen to zillakami?

Chemistry

1 answer:

g100num [7]3 years ago

3 0

Answer:

no I don't listen to them

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2. (2 pts) How would you prepare 1.5 liters of 2 M KCI (MW=74.55 g/mol)

ra1l [238]

Answer:

Dissolve 226 g of KCl in enough water to make 1.5 L of solution

Explanation:

1. Calculate the moles of KCl needed

$n = \text{1.5 L} \times \dfrac{\text{2 mol}}{\text{1 L}}= \text{3.0 mol}$

2. Calculate the mass of KCl

$m = \text{3.0 mol} \times \dfrac{\text{74.55 g}}{\text{1 mol}}= \text{224 g}$

3. Prepare the solution

Measure out 224 g of KCl.
Dissolve the KCl in a few hundred millilitres of distilled water.
Add enough water to make 1.5 L of solution. Mix thoroughly to get a uniform solution.

8 0

3 years ago

What form of energy does a glue gun produce when turned on?

jok3333 [9.3K]

The answer is heat.

To use a glue gun, it has to use heat to heat up so that it can melt the glue.

4 0

3 years ago

Oxygen is a __________ and nitrogen is a __________. metalloid, metalloid nonmetal, metal nonmetal, nonmetal nonmetal, metalloid

Anna35 [415]

Answer:

"nonmetal, nonmetal"

Explanation:

Oxygen is a non metal and Nitrogen is a non metal. It is 8th element of the periodic table. It is located in period 2 and group 16.

Nitrogen lies at the group 15 of the periodic table. Its atomic no is 7. Its valency is 2.

Hence, the correct option is (c) "nonmetal, nonmetal".

4 0

3 years ago

If gas is $4.00/gal, how much does it cost to travel from Portland, Maine, to Orlando, Florida (a distance of 1,500 mi)? Give yo

AlexFokin [52]

it cost $200 , the answer is not $6000

6 0

3 years ago

Read 2 more answers

A postulate is a statement recognized as a truth. The kinetic molecular theory has five postulates. Which of the following is NO

MrMuchimi

Answer:

2nd option is NOT a postulate of kinetic theory of gases

Explanation:

actually particles move in straight random motion and create bombardment with the molecules and container

3 0

3 years ago