Provas

Em relação à classificação dos óxidos, assinale a opção que completa corretamente as lacunas das sentenças abaixo:

CO₂ e NO₂ são compostos moleculares classificados como óxidos _______.
Já CO e NO, que também são compostos moleculares, são classificados como óxidos _______.
Na₂O e CaO são compostos iônicos classificados como óxidos _______.

Assinale a opção que apresenta, respectivamente, os seguintes compostos: ácido perclórico, hidróxido férrico e nitrito de potássio.

Assinale a opção que NÃO apresenta um dos postulados do modelo atômico de Bohr.

O derretimento de um pedaço de ferro seria um exemplo de um fenômeno denominado:

Segundo a organização e distribuição dos elementos químicos na tabela periódica, é possível afirmar que:

Texto-base:
Why some people find it easier to stick to new habits they formed during lockdown
November 24, 2020

Periods of lockdown represent a massive disruption to people's daily routines, but they also offer an opportunity to establish new habits.
Our research focus is on what motivates people to change their behaviour, particularly when it comes to physical activity routines.
We compared the levels of physical activity of New Zealanders before and during the country's major lockdown between March and May. We found 38.5% of our sample were doing more physical activity than they did prior to lockdown. But 36% did less and 25.5% were doing about the same.
More interesting was that people whose physical activity was either below or at the World Health Organization's (WHO) recommended guideline of 150 minutes of moderate activity per week increased their activity, while those who were highly active pre-lockdown did less.

Understanding motivation

Approved lockdown activities specifically allowed physical activity as long as people stayed in their local neighbourhood.
Our study shows 23% of participants decided to increase their physical activity to improve their physical and mental health. Both the New Zealand government and the WHO emphasised the link between exercise and health and our results back it up - being physically active during lockdown was associated with greater self-reported psychological well-being.
Motivation is not an all-or-nothing phenomenon. There are different types of motivation and each has a different influence on how likely a person is to change their behaviour and to maintain a new habit.
Someone who enjoys being active and sees the value of it experiences what is called autonomous motivation. This provides a strong impetus for people to continue being active in the long term.
In contrast, someone who is active because they feel they have to be (for example, their GP told them they need to improve a health condition) or to avoid feeling guilty about not getting enough exercise is experiencing controlled motivation.
Our results show that, during lockdown, people's levels of physical activity were associated with autonomous motivation, reflecting research from other countries.
Previous research has shown autonomous motivation leads to sustained physical activity behaviour. People who recognise and value the physical and mental health benefits of being active are likely to have continued being active once lockdown restrictions were lifted.
Two other popular reasons for being active during lockdown were because people had more time (25%) or simply because it was a good excuse to get outside (19%). This might partly explain why some people stopped their physical activity after lockdown.
Once lockdown finished, the extra spare time many people reported was likely reduced again. Similarly, once restrictions were lifted, the use of physical activity as an excuse to get outside wasn't necessary.

(Adapted from https://theconversation.com)

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

( ) People from New Zealand participated in the research.
( ) More than thirty percent of the participants didn't change their amount of physical activity during lockdown.
( ) People who were highly active before lockdown increased their physical activity during lockdown.
( ) Half of the participants decided to do more physical activity in order to have better physical and mental health.
( ) The research shows an association between autonomous motivation and people's levels of physical activity during lockdown.

Mark the correct option to complete the dialogue.

Anna: ______ from England?
John: Two days ago.

Which option completes the text below correctly?

Safety Instructions for Ultraviolet (UV) Equipment

- ______ appropriate personal protective equipment (safety glasses, UV-blocking face shield, gloves).
- ______ exposed skin.
- ______ UV emitters and radiated surfaces.

(Adapted from https: //www.heraeus.com)

Mark the option that contains only fruit.

Which option completes the dialogue below correctly?

Paul: How ______ money do you have?
Peter: I don't have ______ money.