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masha68 [24]
1 year ago
10

What do scientists call the type of rocket in which part of the rocket is dropped off after fuel has been used?

Chemistry
1 answer:
Blababa [14]1 year ago
3 0

Answer:

Multistage rockets

Explanation:

Multistage is a launch vehicle that uses two or more rocket stages, each of which contains its own engines and propellant.

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Suppose your teacher ask you to separate a mixture of sand and water.Which of the following merhods would u use:distillation fil
MrRa [10]

Answer:

Filtration

Explanation:

Filtration would be best because the sand particles would be trapped in the filter paper and the water would go through so the mixture would be separated

7 0
2 years ago
What are the main reactants and products in a neutralization reaction?
blagie [28]

The reactants in the neutralization reaction are an acid and a base while the products are a salt and water.

7 0
3 years ago
HURRY WHICH ONE IS IT??
aliya0001 [1]

Answer:

Protons are positive, electrons are negative, neutrons have to charge. Most of an Atoms mass comes from its protons and neutrons

Explanation:

I took some notes in my notebook about Atoms.

8 0
3 years ago
Read 2 more answers
What is the answer to 4x - 16
andrezito [222]
It simply equals 4x-16.......
the expression is in lowest terms, so you can’t do anything else
4 0
3 years ago
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Calculate the number of moles of caco3 (calcium carbonate, or limestone) in a 20.0g sample of this substance
Brrunno [24]
First calculate for the molar mass of the given formula unit, CaCO₃. This can be done by adding up the product when the number of atom is multiplied to its individual molar mass as shown below.

     molar mass of CaCO₃ = (1 mol Ca)(40 g Ca/mol Ca) + (1 mol C)(12 g of C/1 mol of C) + (3 mols of O)(16 g O/1 mol O) = 100 g/mol of CaCO₃

Then, divide the given amount of substance by the calculated molar mass.
            number of moles = (20 g)(1 mol of CaCO₃/100 g)
             number of moles = 0.2 moles of CaCO₃

<em>Answer: 0.2 moles</em>
6 0
3 years ago
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