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Tpy6a [65]
2 years ago
7

NOT A TEST AND I WILL GIVE BRAINLEIST DON'T ANSWER IF YOU DON'T KNOW

Chemistry
1 answer:
barxatty [35]2 years ago
5 0

Answer:

In the nucleus of an atom ,there are protons & neutrons. Protons have charge of 1.6× 10^-19 C, while neutrons have 0C charges. Electrons orbit outside the atom. Their charge is - 1.6 ×10^-19C

Explanation:

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2) Os foguetes são utilizados para levar pessoas ao espaço (os astronautas), mas principalmente cargas como, por exemplo, os sat
azamat

Answer:

F, V, V , V, F

Explanation:

1 - "Os foguetes são utilizados para levar pessoas ao espaço (os astronautas), mas principalmente cargas como, por exemplo, os satélites artificiais, os telescópios espaciais, levar sondas a outros planetas etc".

2 - Tipo Meteorologia: utilizados para monitorar o tempo e o clima no planeta Terra, por exemplo, os da série Meteosat.

3 - ...

4 - ...

5 - Usam combustivel solido, liquido, hibridos (solido e liquido), iônica:

Solido:

 São sistemas simples que unem os dois propelentes envolvidos em uma massa sólida que, quando inflamada, não para de queimar até o esgotamento completo.

Liquido:

 São muito mais complexos e envolvem o bombeamento de quantidades imensas de propelentes para as câmaras de combustão dos motores.

Hibridos:

 O propelente sólido – normalmente o combustível – é distribuído ao longo do tanque de maneira homogênea. O propelente líquido ou gasoso "normalmente o oxidante" fica armazenado em tanques.

 Podem ser desligados depois de sofrerem ignição, além de permitirem um controle de queima relativamente preciso.

Iônica:

 Usando eletricidade (captada por painéis solares ou gerada por reatores atômicos) para ionizar átomos (normalmente gases nobres, como xenônio), e expulsá-los em velocidades altíssimas.

5 0
3 years ago
HELP PLEASE!!! Which of the following best describes the nitrogen fixation process?(1 point) Producers convert nitrogen gas into
BaLLatris [955]

Soil bacteria convert atmospheric nitrogen into ammonia, nitrites, and then nitrates. This nitrates are then absorbed by producers.

<h3>What is nitrogen fixation?</h3>

Nitrogen fixation is a process that converts atmospheric nitrogen (N2), into available forms such as ammonia, nitrates, or nitrites to plants so that the plant can absorb it and make amino acids so we can conclude that Soil bacteria convert atmospheric nitrogen into ammonia, nitrites, and then nitrates. This nitrates are then absorbed by producers.

Learn more about fixation here: brainly.com/question/1380063

3 0
2 years ago
What is the mass of 0.25 mol of sodium chloride? (show working)
miskamm [114]
A mass of <span>58.44 g hope this helps and plz rate below and thank me on my profile plz</span>
4 0
3 years ago
Read 2 more answers
Please help me please I will mark brainly
earnstyle [38]
Photosynthesis has a huge role in the carbon cycle and in the Calvin cycle because photosynthesis is a way of transforming carbon dioxide into glucose, sugars, and oxygen.

Hope this helped :)
7 0
3 years ago
How would you prepare a 0.1M solution of HCl starting with a 1.0M solution? Assume you want to prepare 100 ml of solution.
omeli [17]
This question is a dilution problem. In order to prepare a certain concentration and volume from a stock solution, you have to use the equation,

M1V1 = M2V2

From the equation, you need to calculate the volume you need from the stock solution to be able to have the diluted concentration then dilute it to a certain volume.

(1.0 M) (V1) = (0.1 M) (100 mL)
V1 = 0.1 mL is needed from the 1.0 M HCl solution

4 0
3 years ago
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