All categories

3 years ago

How many atoms is in h20

Chemistry

2 answers:

Nataly_w [17]3 years ago

5 0

Answer:

3 atoms

Explanation:

2 hydrogen atoms and 1 oxygen atom

kow [346]3 years ago

5 0

Answer:3

Explanation:

There are 2 hydrogen atoms and 1 oxygen atoms which makes 3 total

You might be interested in

Who was the first person to propose that atoms existed?

Gennadij [26K]

Democritus was the first person to theorize the existence of atoms.

8 0

3 years ago

Read 2 more answers

A volume of 105 mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If

NemiM [27]

Answer:

<h3>25.0 grams is the mass of the steel bar.</h3>

Explanation:

Heat gained by steel bar will be equal to heat lost by the water

$Q_1=-Q_2$

Mass of steel= $m_1$

Specific heat capacity of steel = $c_1=0.452 J/g^oC$

Initial temperature of the steel = $T_1=2.00^oC$

Final temperature of the steel = $T_2=T=21.50^oC$

$Q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2= 105 g$

Specific heat capacity of water= $c_2=4.18 J/g^oC$

Initial temperature of the water = $T_3=22.00^oC$

Final temperature of water = $T_2=T=21.50^oC$

$Q_2=m_2c_2\times (T-T_3)-Q_1=Q_2(m_1c_1\times (T-T_1))=-(m_2c_2\times (T-T_3))$

On substituting all values:

$(m_1\times 0.452 J/g^oC\times (21.50^o-2.00^oC))=-(105 g\times 4.18 J/g^oC\times (21.50^o-22.00^o))\\\\m_1*8.7914=241.395\\\\m_1=\frac{219.45}{8.7914} \\\\m_1=24.9\\\\ \approx25 \texttt {grams}$

<h3>25.0 grams is the mass of the steel bar.</h3>

3 0

3 years ago

Read 2 more answers

The reaction A + 2B occurs in one step in the gas phase. In each blank below, write the exponent of the concentration in the FOR

strojnjashka [21]

Answer:

see below

Explanation:

for A + 2B => Products ...

Rate Law => Rate =k[A][B]ˣ

As shown in expression, A & B are included, C is not.

6 0

3 years ago

Read 2 more answers

Which part of Earth most likely has the highest albedo value?

andre [41]

Uhhh pretty sure B

Happy New Years

3 0

3 years ago

Find the density of an object that has a mass of 28 grams and a volume of 2 points<br> 38.6 cm^3. *

Shtirlitz [24]

Answer:

Explanation:

The density of a substance can be found by using the formula

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

From the question we have

$density = \frac{28}{38.6} \\ =0.72538...$

We have the final answer as

Hope this helps you

4 0

3 years ago