Ask question

Ask question

All categories

schepotkina [342]

3 years ago

9

Which chemical equation follows the law of conservation of mass

2 answers:

Neko [114]3 years ago

4 0

Answer:

the law of conversation of mass States that mass is an isolated system is neither created or destroyed by chemical reactions or physical transformations. according to the law of conversation of mass the mass of the product in a chemical reaction must equal to the mass of reactants

hope It helped you

seraphim [82]3 years ago

3 0

The answer is A, because there is the same amount of atoms on each side.

You might be interested in

Gold has a density of 1,200 lb./ft. What is the density of gold in g/em? For conversion factors use I lb. 453.6 g, and l inch-2.

Jlenok [28]

<u>Answer:</u> The density of gold in $g/cm^3$ is $19.22g/cm^3$

<u>Explanation:</u>

Density is defined as the ratio of mass of the object and volume of the object. Mathematically,

$\text{Density}=\frac{\text{Mass of the object}}{\text{Volume of the object}}$

We are given:

Density of gold = $1200lb/ft^3$

Using conversion factors:

1 lb = 453.6 g

1 feet = 12 inches

1 inch = 2.54 cm

Converting given quantity into $g/cm^3$ , we get:

$\Rightarrow (\frac{1200lb}{ft^3})\times (\frac{453.6g}{1lb})\times (\frac{1ft}{12inch})^3\times (\frac{1inch}{2.54cm})^3\\\\\Rightarrow 19.22g/cm^3$

Hence, the density of gold in $g/cm^3$ is $19.22g/cm^3$

6 0

3 years ago

The organelle is found in plant cells contains a green pigment and is the site of photosynthesis. this organelle is the _______

Liono4ka [1.6K]

Answer: Chloroplasts
Reasoning: I just had my 830th lesson in school about these

7 0

2 years ago

Ni (s) + O2 (g) → NiO (s)

kicyunya [14]

Answer:

Explanation:

2NiS + 3O2 = 2NiO + 2SO2

3 0

3 years ago

Both of the sulfur-oxygen double bonds in so2 is polar. in which direction should the polarity arrows point

kodGreya [7K]

Answer:

Away from the central sulfur atom.

Explanation:

4 0

3 years ago

Read 2 more answers

Please solve for Cu,N,and O an dif you can show how cause ik confused

belka [17]

Cu⇒ 1 atom

N⇒2 atoms

O⇒6 atoms

Total 9 atoms

<h3>Further explanation </h3>

The empirical formula is the smallest comparison of atoms of compound forming elements.

A molecular formula is a formula that shows the number of atomic elements that make up a compound.

<em>(empirical formula) n = molecular formula </em>

Chemical formula : Cu(NO₃)₂

Number of Cu : 1

Number of N : 2

Number of O = 2 x 3 = 6

Total atoms in Cu(NO₃)₂ : 1 + 2 + 6 = 9

4 0

3 years ago