Balance the chemical equation below using the smallest possible whole number stoichiometric coefficients.

One of the most common household toxins, benzene can be found in the following:

maksim [4K]

Answer : Option D) Paint Supplies.

Explanation : The paint is usually the major common household toxins, which contains benzene in it. Benzene being carcinogenic in nature is very harmful to humans.

7 0

3 years ago

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Balance this equation: CH4 +2O2--------> ___ CO2 + ___ H2O

Lubov Fominskaja [6]

Answer:

b-1 CO2+ 2H2O

5 0

3 years ago

(a)-Use Lewis symbol store present there action that occurs between Ca and F atoms. (b)-What is the chemical formula of the most

Charra [1.4K]

Answer:

(a) The Lewis structure is shown in the image below.

(b) $CaF_2$

(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.

(d) Calcium atom loses electrons.

Explanation:

Calcium is the element of second group and forth period. The electronic configuration of Calcium is - 2, 8, 8, 2 or $1s^22s^22p^63s^23p^64s^2$

There are 2 valence electrons of Calcium.

Fluorine is the element of group 17 and second period. The electronic configuration of the element fluorine is - 2, 7 or $1s^22s^22p^5$

There is 1 valence electron of fluorine.

The Lewis structure is drawn in such a way that the octet of each atom is complete.

Thus, calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond. This is done in order that the octet of the atoms are complete and they become stable.

Thus, the formula of calcium chloride is $CaF_2$ .

<u>(a) The Lewis structure is shown in the image below.</u>

<u>(c) Calcium loses 2 electrons to 2 atoms of fluorine and these 2 atoms of fluorine accepts each electron to form ionic bond.</u>

<u>(d) Calcium atom loses electrons.</u>

5 0

3 years ago

A. List the potential acute health effects.

AleksandrR [38]

When we handle chemical substances we must be very careful because they can put our:

Physical integrity.
Health
Life at risk.

<h3>What is a chemical?</h3>

A chemical substance is a chemical compound resulting from the union of two or more chemical elements. Compounds have different uses depending on their properties. However, some can be harmful and life-threatening to humans.

<h3>Potential acute effects.</h3>

The potential acute effects of some compounds may be related to skin contact causing:

Inflammation
Redness
Rash
Burns
Dry
Among other.

On the other hand, the chronic effects of chemical compounds can be:

Diseases in the central nervous system.
Respiratory diseases.
Skin diseases.
Degenerative diseases of the bone system.

<h3>What to do when a chemical is ingested?</h3>

There are a large number of chemical substances and each one has different properties. Therefore, it is very difficult to generalize about a treatment in case of ingestion. What must be done is to know the level of risk of the substance that is being handled and avoid ingesting it at all costs. However, if it is ingested, go to the emergency room.

<h3>Product flammability</h3>

Not all chemical compounds have the same flammable response to fire. Due to the above, it is necessary to identify if the substance that we are handling is highly or slightly flammable, for this we can consult the manual of the substance or the label of its packaging.

<h3>3 Chemical that produces a potentially dangerous reaction with hydrochloric acid.</h3>

According to some studies and the hydrochloric acid safety data sheet, it can have dangerous reactions with:

Reacts violently with water.
Gives off hydrogen in reaction with metals.
Keep away from strong bases.

<h3>How to handle small spills?</h3>

Contain the spill.
Soak up with inert absorbent material.
Prevent the product from entering the sewage system.
Keep in suitable, closed containers for disposal.

<h3>Personal Protection</h3>

When we handle chemical substances we are facing a potential risk. Due to the above, protocols have been developed for its handling, which include the use of protection elements such as:

Gloves
Glasses
Helmet
Mask
Boots
Special suit.
Among others.

Learn more about chemical compounds in: brainly.com/question/14498747

5 0

2 years ago

Define Isotopes with an example.

Ugo [173]

Answer:

One or more number of species which have same number of atomic number but different mass number are called isotopes.

For example, $^{1}_{1}H, ^{2}_{1}H, ^{3}_{1}H$ are the isotopes of hydrogen.

So here, the atomic number of each of these isotopes is 1 and have different mass number, that is, 1, 2, 3.

8 0

3 years ago