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2 years ago

12

Convert 3.9 kcal into calories.

1 answer:

timama [110]2 years ago

8 0

$3.9 ~\text{kcal} = 3.9 \times 1000 ~ \text{cal} = 3900~ \text{cal.}$

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C. Convert 1.05x107 milliliters to kiloliters (L = liter)

kari74 [83]

Answer:

10.5 kl

Explanation:

$1.05*10^7ml\\=\frac{1.05*10^7}{10^3}l\ [1 ml= 1/1000 l]\\=1.05*10^4\\=10500 l\\=\frac{10500}{1000} l\ [1l=1/1000kl]\\=10.5 kl$

3 0

3 years ago

Read 2 more answers

What is the use of the crystallisation process?

ioda

to obtain pure salt from seawater.
in order to obtain pure crystals of a substance from an impure mixture.
obtain pure alum crystals from an impure alum.

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2 years ago

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Find the volume of a cereal box that has the dimensions of 35.2 cm x 220 cm x 6.0 cm

notsponge [240]

Answer:

Volume = 35.2×220×6.0 = 46464 centimeters³

Explanation:

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3 years ago

A compound decomposes by a first-order process. if 25.0% of the compound decomposes in 60.0 minutes, the half-life of the compou

Tom [10]

Answer:<span>d. 145 minutes
</span>
Half-life is the time needed for a radioactive to decay half of its weight. The formula to find the half-life would be:

Nt= N0 (1/2)^ t/h

Nt= the final mass
N0= the initial mass
t= time passed
h= half-life

If 25.0% of the compound decomposes that means the final mass would be 75% of initial mass. Then the half-live for the compound would be:
Nt= N0 (1/2)^ t/h
75%= 100% * (1/2)^ (60min/h)
3/4= 1/2^(60min/h)
log2 3/4 = log2 1/2^(60min/h)
0.41503749928 = -60min/h
h= -60 min / 0.41503749928= 144.6min

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3 years ago

Order the sentence and write sentence FERTILISM IN NO ARE REPRODUCTION FLOWERS ASEXUAL THERE OR

ValentinkaMS [17]

Answer:

there are no fertilism or flowers In a sexual reproduction

Explanation:

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3 years ago