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Otrada [13]
3 years ago
10

1.Give the correct order of apparatus (Evaporating dish, Filter funnel, Test tube, Dropper, Spatula) to show the correct arrange

ment that can be used to prepare and investigate the nature of pH of a sample of onion solution.
2.Name an apparatus and a chemical used in this experiment.
Chemistry
1 answer:
g100num [7]3 years ago
7 0

Answer:

2 answer

A List of Chemistry Laboratory Apparatus

Safety goggles and safety equipment.

Beakers.

Erlenmeyer flasks, AKA conical flasks.

Florence flasks, AKA boiling flasks.

Test tubes, tongs, and racks.

Watch glasses.

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A 100.0 lb skier moves at 40.00miles/hour. Calc her kinetic energy.
Pepsi [2]

answer: its 7290 joules.

explanations: the first procedure is to convert 1 pound to kilogram. 1 kg = 2.205 hence given 100 lb so we cross multiply. 1 kg * 100 = 2.205 * x

hence x= 45 kg. let's convert 1 mile per hour = 0.45 metre per second we cross multiply by 40 mile per hour. x= 40 * 0.45= 18 m/s.

KE= 1/2 * 45 * (18)^2

= 1/2 * 45 * 14580

= 7290joules

5 0
3 years ago
How is stoichiometry used to calculate the amount of product from amount of reactant?
IceJOKER [234]
<span>Stoichiometry deals with the quantitative measurement of reactants and products in a chemical reaction. Let suppose you are given with following reaction;

                                            A  +  2 B   </span>→    3 C

According to this reaction 1 mole of A reacts with 2 moles of B to produce 3 moles of C. Now using the concept of mole one can easily measure the amount of reactants reacted and the amount of product formed, as...

                    1 Mole Exactly equals 6.022 × 10²³ particles

                    1 Mole of Gas (at STP) exactly occupies 22.4 L Volume

                    1 Mole of any compound exactly equals the molar mass in                                 grams

Therefore, <span>Stoichiometry is very helpful in quantitative analysis.</span>
6 0
3 years ago
Read 2 more answers
Acetic acid and water react to form hydronium cation and acetate anion, like this:
OverLord2011 [107]

Answer:

The answer is "Greater than zero, and greater than the rate of the reverse reaction".

Explanation:

It applies a rate of reaction to the balance, a forward response dominates until it reaches a constant. This process is balanced before 52 mmol of the reactantHC  H_{3} \ CO_2, to which 3 is added. In balance, that rate of the forward reaction was its rate with forwarding reaction, both of which are higher than 0 as the response has achieved balance so that both species get a level greater than 0.

8 0
3 years ago
if theres no coefficient on a element symbol, is the power automatically 1 like it would be if there was no subscript?
Ivenika [448]
Yup go this website for more information http://dwb.unl.edu/calculators/activities/BalEqn.html
5 0
3 years ago
Consider the nuclear equation below. Superscript 124 subscript 56 B a right arrow superscript 124 subscript 55 upper C s plus qu
nadezda [96]

Superscript o subscript negative 1 e.

Explanation:

The nuclear reactions is of 2 types, one is nuclear fusion and the other one is nuclear fission.

Nuclear fusion is nothing but the combining of 2 nuclei with an emission of energy along with an electron, proton or beta particle.

Nuclear fission is the break down of a nucleus into 2 or more nuclei along with an electron, proton or beta particle.

And the reaction is,

₅₆B¹²⁴  ₅₅C¹²⁴ +  ₋₁e⁰

So the blank was filled by means of a beta particle.

6 0
3 years ago
Read 2 more answers
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