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Triss [41]
3 years ago
13

Give answer with correct number of significant figure 600*180

Chemistry
1 answer:
zubka84 [21]3 years ago
7 0

Answer:

The answer to this question is; <em>1.08 x 10^5</em>

Explanation:

This is the correct option because

600 x 180 = 108,000

108,000. -> move the decimal over 5 times to get a number between 1 and 10

1.08 x 10^5

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Type the correct answer in the box. Express your answer to three significant figures. Iron(II) chloride and sodium carbonate rea
Ad libitum [116K]

Answer:

The reaction can produce 287 grams of iron(II) carbonate

Explanation:

To solve this question we must find the moles of iron(II) chloride that react. Using the chemical equation we can find the moles of iron(II) carbonate and its mass -Molar mass FeCO3: 115.854g/mol-

<em>Moles FeCl2:</em>

1.24L * (2.00mol / L) = 2.48 moles FeCl2

As 1 mol FeCl2 produce 1 mol FeCO3, the moles of FeCO3 = 2.48 moles

<em>Mass FeCO3:</em>

2.48mol * (115.854g / mol) =

<h3>The reaction can produce 287 grams of iron(II) carbonate</h3>
5 0
3 years ago
400cm³ of dry air was passed over heated copper powder in a hard glass tube until no further change. What volume of remained at
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Explanation:

I think there' will be a decrease in volume of the air.

3 0
3 years ago
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12 POINTS!! Which step would help a student find the molecular formula of a compound from the empirical formula?
Novosadov [1.4K]
Your answer would be D.
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3 years ago
PLEASE HELP!!
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Answer is: the specific heat capacity of the metal is <span>A) 0.129 J/gK.
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Q = 48,75 J.
ΔT = 25 K.
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C = Q ÷ ΔT · m(metal).
C = 48,75 J ÷ 25 K · 15,1 g.
C = 0,129 J/g·K.
3 0
3 years ago
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Si a un resorte se le cuelga una masa de 800 g y se deforma 50 cm. ¿Cuál será el valor de su constante en N/m? (g = 9.81m/s2).
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Answer:

50cm

Explanation:

because thats the only thing i got

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