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2 years ago

15

Realizar un Experimento Teóricamente, considerando la definición de mezcla, dibuja y explicar de forma teórica su proceso de pre

paración de una mezcla de su preferencia y su elección

1 answer:

Mrrafil [7]2 years ago

7 0

Answer:

rffdf

Explanation:

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When making an observation you should provide a general description of the subject rather than going into too much detail true o

vodka [1.7K]

In an observation in an experiment, you want to write down as much detail as possible. So the answer would be false.

8 0

2 years ago

Please help me.

kirza4 [7]

Taking into account the definition of density, the density of the sample is 0.5 $\frac{g}{mL}$ .

It is necessary yo know that density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density allows you to measure the amount of mass in a certain volume of a substance.

Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

$density=\frac{mass}{volume}$

In this case, you know:

mass= 6 g
volume= 12 mL

Then, replacing in the definition of density:

$density=\frac{6 g}{12 mL}$

Solving:

<u><em>density= 0.5 </em></u> $\frac{g}{mL}$ <u><em /></u>

Finally, the density of the sample is 0.5 $\frac{g}{mL}$ .

Learn more about density:

7 0

2 years ago

How much energy is added to change 180g of liquid water to gas at 100 degrees Celsius

Finger [1]

Answer:

40.7 kJ

Step-by-step explanation:

The formula for the heat, q, needed to evaporate a liquid is

q = mΔHvap

<em>Data: </em>

m = 180 g

ΔHvap = 2260 J/g

<em>Calculation: </em>

q = 180 g × 2260 /1

q = 40 700 J = 40.7 kJ

7 0

2 years ago

the atomic number of four elements p,q,r,s are 6,8,10 and 12 respectively. the two elements which can bond ionically are:

denis-greek [22]

Answer:

The atomic numbers of four elements A, B, C, and D are 6,8,10, and 12 respectively. The two elements which can react to form ionic bonds (or ionic compounds) are B (8= 2,6) and D (12 =2,8,2). So D donates its two electrons to B to fulfill their octet.

Explanation:

6 0

1 year ago

39. Which of the following substances are insoluble in water? Select all that apply.

Jet001 [13]

A, B, and C are insoluble in water

7 0

3 years ago

Read 2 more answers