Provas

Examine a tabela abaixo.



Com base na tabela apresentada, compare os elementos entre si e suas propriedades periódicas e assinale a opção correta.

Observe as reações abaixo.



Assinale a opção que apresenta a denominação das reações I, II, III, respectivamente.

As fórmulas Br₂(g), FeCl₂(s) e Pb(s) representam, respectivamente, substâncias com ligações químicas do tipo:

Para recompor o estoque de reagentes do setor de testes e análises químicas de uma indústria produtora de tintas, vernizes e solventes, o encarregado do setor de estoque, encaminhou o pedido apresentado abaixo.



Com base no pedido apresentado, assinale a opção que apresenta as fórmulas moleculares que representam os compostos de código 1110,1120,1130,1140,1180 e 1190, respectivamente.

Observe a tabela abaixo.



Assinale a opção que completa corretamente as lacunas a seguir.

Os átomos de chumbo I, II, III e IV são ___________ e o átomo de chumbo III possui no seu núcleo ______nêutrons.

Texto-base:
What is a ‘healthy’ food?

Nowadays, about 5 percent of all packaged foods are classified as “healthy,” according to the Food and Drug Administration agency. This definition allows for food manufacturers to add the word “healthy” to the products that have limited amounts of total fat, saturated fat, cholesterol and sodium and provide at least 10 percent of the daily value of one or more of the following nutrients: vitamin A, vitamin C, vitamin D, calcium, iron, protein, dietary fiber, or potassium.
The most important aspect is that, nowadays, there is no limit on added sugars in the present definition - an omission that the F.D.A. believes is inconsistent with today’s nutrition science. Consequently, the F.D.A presented a new proposal on Wednesday which aims at changing the criteria about packaged foods that it considers “healthy.” This would modernize its approach to nutrition and help people who suffer from diet-related diseases.
“The old rule was really outdated - you could create any kind of Frankenstein food that met the nutrient criteria and classify it as healthy,” said Dr. Dariush Mozaffarian, a cardiologist and professor of nutrition at the Tufts Friedman School of Nutrition Science and Policy in Boston. “This is a major advance.”
The proposed rule introduces a new limit on added sugars - in general, no more than 2.5 grams per serving. It also restricts the amount of sodium to no more than 230 milligrams per serving and provides limits for saturated fat.
The new definition aims to encourage healthy eating by prioritizing a mix of vegetables, fruits, grains, dairy, proteins and certain oils, including vegetable oils. A “healthy” food would need to contain a minimum amount of at least one of those food groups and be within the new limits for saturated fats, sodium and added sugars.
Many sugary cereals, granola bars, highly sweetened yogurts and white breads, which might currently qualify as “healthy” under the existing definition, would be eliminated under the new rule. On the other hand, water, avocados, nuts and seeds, fatty fish like salmon, and certain oils - which do not currently qualify as “healthy” - could get the distinction under the new guidelines.
The new definition of “healthy” emphasizes if a food fits into a healthy dietary pattern, as opposed to just focusing on a food’s individual nutrients. Salmon, for example, which isn’t considered “healthy” under the current definition because it is high in fat, would get the new “healthy” distinction because it is rich in beneficial omega-3 fatty acids and protein and low in saturated fat and cholesterol.
The agency hopes that an updated definition will help consumers make better dietary decisions, to help lower the incidence of “diet-related chronic diseases” like cardiovascular disease and Type 2 diabetes. More than 80 percent of people living in the United States aren’t getting enough vegetables, fruit and dairy in their diets, according to the F.D.A.

(Adapted from https://www.nytimes.com/2022)

Decide if the statements below are true (T) or false (F) according to the text. Then choose the option that contains the correct sequence.

( ) The new proposal includes a minimum quantity of grains, dairy, proteins or certain oils.
( ) Under the present definition, manufacturers can classify unhealthy foods as “healthy.”
( ) The percentage of packaged foods classified as “healthy” nowadays is very high.
( ) Salmon is an example of a food that would not be considered “healthy” after the proposal becomes a reality.
( ) The new proposal presents limits on added sugars, sodium and saturated fats.
( ) One example of a “healthy” food, according to the present definition, is food that contains limited amounts of fat and less than 10 per cent of the daily value of potassium.

Mark the option below with the correct preposition to fill in the blank in the sentence.

Our plane will depart ____ five minutes. Hurry up!

Mark the option that is grammatically INCORRECT.

Read the text below and answer the question.

My name is Tim and I am 16 years old. I live with my family in a nice house near the mountains. I _____ (have) two brothers and one sister. Our father _____ (teach) Mathematics at our local school, and our mother _____ (be) a doctor at a big hospital not far away. Our grandparents also _____ (live) with us. They _____ (be) a bit old but still very strong.

Use the verbs in parentheses to fill in the blanks in the text. Then mark the option below which contains the correct sequence.

Mark the option with the correct sequence of possessive adjectives or possessive pronouns.

I- This isn't your book. It is _____.
II- Here's a photo of Ann and David with _____ new baby.
III- New York City is famous for _____ tall buildings.
IV- John is very happy with _____ new car.
V- My mother and I drive to work every day. My car is old but _____ is new.