An atom of 34S has how many protons, neutrons, and electrons?

When chlorine and magnesium react chemically, how many chlorine atoms will combine with one magnesium atom?

Lesechka [4]

Magnesium is divalent. This means that one magnesium atom needs to lose 2 electrons in order to become stable.

Chlorine, on the other hand, is monovalent. This means that one chlorine atom needs to gain one electron in order to become stable.

Based on this, one magnesium atom will combine with two chlorine atoms, where the magnesium loses two electrons, one for each chlorine.

The formula of the compound formed is: MgCl2

8 0

3 years ago

If you were to mass the reactants before the reaction and then mass the products after the reaction,what would you expect to fin

kenny6666 [7]

Explanation:

What would you expect to find?

- The masses of the reactants would be equal to the masses of the product.

Why?

- This is due to the law of conservation of matter which states that matter is neither created nor destroyed in an isolated system but converted from one form to the other.

How is this related to balancing your equations?

- This is why during balancing of equations, we must ensure that the number of atoms in the reactant side must be equal to the number of atoms in the product side.

6 0

3 years ago

As a student , what can you do to help in preventing pollution in your community ?

aliya0001 [1]

Answer: as a student , i will do to help in preventing pollution in my community :

Reduce the number of trips you take in your car.

Reduce or eliminate fireplace and wood stove use.

Avoid burning leaves, trash, and other materials.

Avoid using gas-powered lawn and garden equipment.

Using non-toxic or less toxic chemicals as cleaners, degreasers and other maintenance chemicals. Implementing water and energy conservation practices. Reusing materials such as drums and pallets rather than disposing of them as waste.

Store your household chemicals (including cleaning products, paints, fuel canisters, etc.) as far away as possible from the living space and, if possible, in metal cabinets. Do not store chemicals in areas where you spend most of the time. Also, do not store chemicals in open cabinets or shelves.

Use Public Transportation. Use your vehicle a lot less often. .

Drive Smart. .

Do Regular Car Check-Up. .

Keep Car Tires Properly Inflated. .

Buy Energy-Efficient Vehicles. .

Consider “going green” .

Plant a Garden. .

Use Low-VOC or Water-based Paints.

Avoid smoking indoors (but quitting smoking is the best answer for overall health).

Use craft supplies in well-ventilated areas.

Make sure your gas stove is well-ventilated.

Minimize clutter.

Remove carpeting if possible.

Use a dehumidifier and/or air conditioner to reduce moisture.

How can students help reduce pollution?

Help Recycling

The most obvious things to reuse are plastic, glass, metal, and paper or fabric (paper and organic fabric are made of the same component, cellulose, and are recycled in a similar way). The color-coded trash bins show where each of these components can be put to be recycled in a proper way.

REDUSE ,REUSE , RECYCLE

3 0

3 years ago

Properties of matter with three example each

Cerrena [4.2K]

Answer:

Extensive properties vary with the amount of the substance and include mass, weight, and volume. Intensive properties, in contrast, do not depend on the amount of the substance; they include color, melting point, boiling point, electrical conductivity, and physical state at a given temperature.

8 0

3 years ago

A 0.750 g sample of tin is oxidized with nitric acid to form tin oxide. Calculate the

irakobra [83]

A 0.750 g sample of tin is oxidized with nitric acid to form tin oxide. if the original tin sample gained 0.21 g of oxygen, the empirical formula of tin oxide is SnO₂.

A 0.750 g sample of tin is oxidized with nitric acid to form tin oxide. if the original tin sample gained 0.21 g of oxygen, the mass of tin oxide is:

$mSn_xO_y = mSn + mO = 0.750 g + 0.21 g = 0.96 g$

Then, we will calculate the mass percent of each element in the oxide.

$\% Sn = \frac{0.750g}{0.96g} \times 100\% = 78\%\\\\\% O = \frac{0.21g}{0.96g} \times 100\% = 22\%$

Next, we will divide each percentage by the atomic mass of the element.

$Sn: 78/118.71 = 0.66\\\\O: 22/16.00 = 1.4$

Finally, we will divide both numbers by the smallest one, i.e. 0.66.

$Sn: 0.66/0.66 = 1\\\\O: 1.4/0.66 \approx 2$

The empirical formula of tin oxide is SnO₂.

A 0.750 g sample of tin is oxidized with nitric acid to form tin oxide. if the original tin sample gained 0.21 g of oxygen, the empirical formula of tin oxide is SnO₂.

Learn more: brainly.com/question/1363167

4 0

3 years ago