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Marina86 [1]
3 years ago
9

A destructive change that is not caused by people

Chemistry
2 answers:
KATRIN_1 [288]3 years ago
8 0

Answer:

B and C

Explanation:

Natural disasters can be very destructive along with severe weather. Both mixed would be quite bad for us.

posledela3 years ago
7 0

Answer:

Natural Disaster

Explanation:

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26.5 g of a solution with a density of 7.48 g/mL
Cloud [144]

Answer:  Assuming the question: 3.54 ml (3 sig figs)

Explanation:

I don't see a question, but will assume it is "What volume is needed to obtain 26.5 grams?

If so:

(26.5 g)/(7.48 ml) = 3.54 ml (3 sig figs)

6 0
3 years ago
What interment that mesure air pressure
vova2212 [387]
The instrument that measures air pressure is called a barometer. It measures the wind pressure and it is easy to move and read.

Hope I helped!

- Amber
4 0
3 years ago
What is the name of this hydrocarbon?
seraphim [82]
It's 2-methylpropane.
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4 0
4 years ago
A compound contains 36.48% Na, 25.41% S, and 38.11% O. Find it’s empirical formula
MAXImum [283]

Answer:

we can use 100g of compounds as the basis.

Explanation:

3 0
2 years ago
2C3H6O + 8O2 --> 6CO2 + 6H2O
grigory [225]

Answer: 0.45 moles of H_2O will be produced from 0.15 moles of propanol.

Explanation:

The balanced chemical reaction is:

2C_3H_6O+8O_2\rightarrow 6CO_2+6H_2O

C_3H_6O is the limiting reagent as it limits the formation of product and O_2 is the excess reagent.

According to stoichiometry :

2 moles of C_3H_6Oproduces = 6 moles of H_2O

Thus 0.15 moles of V will produce=\frac{6}{2}\times 0.15=0.45moles  of H_2O

Thus 0.45 moles of H_2O will be produced from 0.15 moles of propanol.

7 0
3 years ago
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