Предмет: Химия, автор: anna40832

ПОМОГИТЕ ПОЖАЛУЙСТА!
Срочно!!!

Задача.

Натрій кількістю речовини 4 моль розчинили у воді.

Визначити масу утвореного натрій гідроксиду.

На русском :
Натрий количеством вещества 4 моль растворили в воде.
Определить массу образованного гидроксида натрия.
Жду- жду.. нет химиков ? (((

Ответы

Автор ответа: amanda2sempl

Ответ: 160 грамм, (жаль поздновато)

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Holidays in the US

Federal holiday in the US is a day when workers have a paid day off from their jobs. There are some holidays that are not federal holidays but | are very popular holidays to celebrate

January

The first day of January is New Year's Day. People in the US sometimes spend this day watching college football games and parades.

On the third Monday in January, Americans celebrate Martin Luther King's birthday, Martin Luther King taught people to use peaceful demonstrations to change laws, instead of violence. Many laws were changed because of his work.

February

February 14th is Saint Valentine's Day. In the US today people send cards called valentines, flowers, chocolates or small gifts to their friends,」

Presidents' Day (birthdays of George Washington and Abraham Lincoln) is celebrated on the 3rd Monday of February. Americans call George Washington "the father of the country" He was elected the first president.Abraham Lincoln was the 16th president. Lincoln gave Negro slaves freedom with the Emancipation Proclamation.

March

March 17th is St. Patrick's Day. This holiday comes from Ireland because St Patrick was the Irish saint. Many people celebrate this holiday by wearing green clothes in honor of St. Patrick. Some people even drink green beer!

April

Easier is a Christian holiday that is celebrated on a Sunday between. March 22nd and April 25th. Christians celebrate the resurrection of Jesus Christ. In the US, people attend religious services and family picnics.

September

Labor Day, celebrated on the first Monday in September honors all working people in the US and Canada.

October

The Monday of October is Columbus Day, celebrating the historic trip of Christopher Columbus to the Americas in 1492. Columbus was Italian and this holiday is especially important to Italian-Americans.

October 31 st is Halloween. Children in costumes go from house to house saying "trick or treat". The treat is usually, a candy and tricks are rarely done. A symbol of Halloween is the jack-o-lantern, which is made of a pumpkin.

November

Thanksgiving Day is the 4th Thursday in November. On this day Americans remember how the Indians helped the Pilgrims by teaching them how to farm and hunt. On this day, they give thanks for their food, their country, and their families.

December

December 25th is Christmas. Many people decorate their houses with Christmas trees and lights and give presents to each other. Children hang stockings for Santa Claus to fill with gifts.

As you can see the US is a country of many holidays!

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