All categories

3 years ago

Match the image with the correct invention

Chemistry

2 answers:

PolarNik [594]3 years ago

8 0

Answer:

1. Watt stream engine

2. McCormick reaper

3. Fulton steamboat

These are the correct answers.

Have A good day!! :)

xxTIMURxx [149]3 years ago

6 0

Answer:

I hope this helps, have a nice day! ❤

Explanation:

1. Watt steam engine

2. McCormick reaper

3. Fulton steamboat

You might be interested in

Card G represents the final event which leads to the formation of wind. In a complete sentence, write a statement which describe

swat32

Answer:

234567890

Explanation:

8 0

3 years ago

How many atoms are there in 90.2 g of selenium?

tia_tia [17]

Answer:First calculate the moles of selenium by multiplying the mass x molar mass 90.2 × 78.96 = 7122.2 moles. Number of moles multiplied by ...

Explanation:

3 0

3 years ago

According to the law of conservation of matter, what cannot change during a chemical reaction?.

skelet666 [1.2K]

Answer:The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. ... The carbon atom changes from a solid structure to a gas but its mass does not change. Similarly, the law of conservation of energy states that the amount of energy is neither created nor destroyed.

Explanation:

7 0

3 years ago

How does this action cause the skateboarder's speed to decrease?

Hitman42 [59]

Answer:

The answer is B

Explanation:

B is your answer hopes this helps you

7 0

3 years ago

If 842 grams of sodium hydroxide reacts with 750.0 grams of aluminum, how many grams of aluminum hydroxide should theoretically

Phantasy [73]

548.55 grams of aluminum hydroxide should theoretically form.

Explanation:

Balanced equation for the reaction:

3 NaOH + Al ⇒ Al(OH)3 +3 Na

DATA GIVEN:

mass of NaOH = 842 grams, atomic mass =39.9 grams/mole

mass of Al = 750 grams, atomic mass = 26.9 grams/mole

aluminum hydroxide theoretical yield = ?

Moles of NaOH reacted

number of moles = $\frac{mass}{atomic mass of 1 mole}$

putting the values in the equation

NaOH = $\frac{842}{39.9}$

= 21.1 MOLES OF NaOH

Al = $\frac{750}{26.9}$

= 27.8 moles

from the equation

from 3 moles of NaOH 1 mole of Al(OH)3 is produced

21.1 moles of NaOH will react to give x moles of Al(OH)3

$\frac{1}{3}$ = $\frac{x}{21.1}$

7.03 moles of Al(OH)3 is formed.

and

1 mole of Al(OH)3 is formed from 1 mole of Al in the reaction

so, 27.8 Moles will react to give give 27.8 moles of Al(OH)3 limiting reagent of the given reaction is NaOH

mass of Al(OH)3 =7.03 x 78 (atomic mass of Al(OH)3)

= 548.55 grams

theoretical yield from the given data is 548.55 grams

3 0

3 years ago