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3 years ago

Plsplsplsplsplsplsplsplsplspls help

Chemistry

1 answer:

MA_775_DIABLO [31]3 years ago

6 0

Answer:

this is difficult but simple to answer

Explanation:

all atoms move in 1 direction no more than 2

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Convert 0.237 μL to ml

Genrish500 [490]

Answer:

0.000237mL

Explanation:

0.237 x 10^-6L = 0.000000237L = mL

0.000237mL

4 0

3 years ago

How many total atoms are there in calcium hydroxide?

AleksAgata [21]

Answer:

5 atoms

Explanation:

1 calcium, 2 oxygen and 2 hydrogen makes for a total of 5 atoms in 1 molecule.

7 0

3 years ago

Read 2 more answers

3. An object weighs 8.22 lbs. What is the mass in grams?

Rainbow [258]

Answer:

The correct answer is 372852.9 g.

Explanation:

First, we must look for the relationship between the masses in grams and pounds.

To get an approximate result, the relationship between pounds and grams found is:

1 lbs = 453.592 g

Now we must use this relationship as a conversion factor in the following way:

8.22 lbs * $\frac{453.592 g}{1 lbs}$ = 372852.9 g

The mass expressed in grams for 8.22 lbs is 372852.9 g.

Have a nice day!

3 0

4 years ago

This question is for science. which options describes the particles of water as liquid water actively boils to become steam?

-BARSIC- [3]

Answer:

The correct option is;

a. The particles will gain a large amount of kinetic energy

Explanation:

As the water temperature reaches 100°C, which is the boiling point for water at atmospheric pressure, the continued heating is then used to break up the strong inter molecular forces between molecules of the water such that the individual molecules are free to move about and due to the high temperature, have gained considerable amount of kinetic energy for the to rise to appreciable height and to also spread.

The heat which converts water into steam is called latent heat as during the boiling phase, the temperature of the water remains constant.

4 0

3 years ago

Read 2 more answers

The first five questions refer to the following problem:

MariettaO [177]

The Acceleration of a model rocket = 4 m/s²

<h3>Further explanation </h3>

Newton's 2nd law explains that the acceleration produced by the resultant force on an object is proportional and in line with the resultant force and inversely proportional to the mass of the object

∑F = m. a

$\large{\boxed{\bold{a=\frac{\sum F}{m}}}$

F = force, N

m = mass = kg

a = acceleration due to gravity, m / s²

An upward thrust of 35 N

A model rocket has a mass of 2.5 kg(weight = 25 N)

so resultant force :

$\tt \sum F=F~upward~thrust-F~weight\\\\\sum F=35-25\\\\\sum F=10~N$

The acceleration :

$\tt a=\dfrac{\sum F}{m}\\\\a=\dfrac{10}{2.5}\\\\a=4~m/s^2$

3 0

3 years ago