3 years ago

6th grade science i mark as brainliest

Chemistry

1 answer:

Blababa [14]3 years ago

8 0

Answer:

It's the 4th one. The car is accelerating gradually.

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Answer these two questions, please.

IRINA_888 [86]

Answer:

neom, sodium bicarbonate

7 0

2 years ago

What is 2KNO3 + 1H2CO3 = 1K2CO3+2HNO3 reaction type

Tema [17]

DR is the correct answer

hope this helps

4 0

2 years ago

Having been heated to 800 K , at some point the tank starts to leak. By the time the leak is repaired, the tank contains only ha

Liula [17]

Answer: The temperature of the gas reduced to 400K.

Explanation:

Stated that ; The pressure remains the same, that is initial and final pressure equals 1atm.

Applying Charles Law

$V1/T1 = V2/T2$

Initial volume V1 = 1

Final volume V2 = 1/2 (halved)

Initial temperature T1 =800K

Final temperature T2 = ?

(1/800) = (1/2)/T2

T2 = 800/2

T= 400K

Therefore, when the volume is halved, the temperature reduced also to half ( 400K)

3 0

3 years ago

A 25.00 ml sample of h3po4 solution is neutralized by exactly 54.93 ml of 0.04345 m ca(oh)2. what is the molarity of the h3po4 s

son4ous [18]

The neutralization equation is:
3 Ca(OH)₂ + 2 H₃PO₄ → Ca₃(PO₄)₂ + 6 H₂O

From this equation we can see that 3 moles of Ca(OH)₂ react with 2 moles of H₃PO₄

Numbers of mmol of Ca(OH)₂ = M x V = 0.04345 x 54.93 = 2.387 mmol

Number of mmol of H₃PO₄ = 2.387 x (2/3) = 1.591 mmol

Molarity of solution = n (mmol) / V(ml) = 1.591 / 25 = 0.0636 M

8 0

3 years ago

Read 2 more answers

Whats the volume of a 2 year old

musickatia [10]

Answer:

here's a great idea!

take a jug of water by finding the volume of that water and ask the 2 year old to chug it all in... the volume of water drank by the 2 year old is the volume of the two year old

5 0

2 years ago

6th grade science i mark as brainliest​

6th grade science i mark as brainliest