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3 years ago

Explain why wrapping a fire blanket around somebody on fire would not be a good idea.

1 answer:

6 0

Some can be defective and can catch on fire, so its best to either have water (for regular fire) or a fire extinguisher (for electrical fire or stuff like that).

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Complete the equation for the dissociation of cdcl2(aq). omit water from the equation because it is understood to be present.

mixas84 [53]

Cadmium chloride is a highly soluble compound. The equation for its dissolution is:

CdCl₂(s) → Cd⁺²(aq) + 2Cl⁻(aq)

This dissociation in water allows for the cadmium and chlorine ions to take part in reactions. This is the reason that solutions of chemicals are prepared when a reaction needs to take place.

3 0

3 years ago

On an artificial reef in the Mediterranean Sea, the rocky bottom, the Dover sole, and the

natka813 [3]

Taking into account the animals and the landscape being mentioned, we can confirm that the combination of these forms part of an ecosystem.

An ecosystem is described as an area consisting of:

Plants
Animals
Bacteria
Weather
Landscape

and many other factors, which all work together to form a small pocket of life.

Ecosystems are described as containing both living and non-living elements, meaning biotic and non-biotic parts. A community or population, on the other hand, are used to consider only the biotic or living factors of an ecosystem. Therefore, since the question includes the rock bottom (a non-biotic factor) as a part of the makeup, the only correct grouping is that of an ecosystem.

To learn more visit:

brainly.com/question/13952438?referrer=searchResults

7 0

2 years ago

Which of the following statements regarding radiation are FALSE?

kari74 [83]

Answer:

All of the given statements are true.

Explanation:

All the elements are heavier than Bismuth (Bi) are radioactive.

The time for half of the original sample to spontaneous decay is called half life ( $t_{1/2}$ )

$t_{1/2}=\frac{ln\:2}{\lambda}\\\lambda\:is\:the\:radioactive\:decay\:constant$

All radioactive elements are spontaneously decaying towards formation of a stable element.

Radioactive elements undergo decay in order to attain stability.

Radioactivity is a natural part of our environment. The earth also contains several primordial long-lived radioisotopes that have survived to the present in significant amounts.

Hence, all the given statements are true.

5 0

3 years ago

4 methods that can be used to separate mixtures are

RUDIKE [14]

Filtration
distillation
crystallization
chromatography

6 0

2 years ago

Read 2 more answers

An organic compound is 61.5% C, 2.56% H and 35.9% N by mass. 2.00 grams of this gas is entered into a 300.0 mL flask and heated

pashok25 [27]

Answer:

C₄H₂N₂

Explanation:

First we calculate the moles of the gas, using PV=nRT:

P = 2670 torr ⇒ 2670/760 = 3.51 atm

V = 300 mL ⇒ 300/1000 = 0.3 L

T = 228 °C ⇒ 228 + 273.16 = 501.16 K

3.51 atm * 0.3 L = n * 0.082atm·L·mol⁻¹·K⁻¹ * 501.16 K

n = 0.0256 mol

Now we calculate the molar mass of the compound:

2.00 g / 0.0256 mol = 78 g/mol

Finally we use the percentages given to calculate the empirical formula:

C ⇒ 78 g/mol * 61.5/100 ÷ 12g/mol = 4

H ⇒ 78 g/mol * 2.56/100 ÷ 1g/mol = 2

N ⇒ 78 g/mol * 35.9/100 ÷ 14g/mol = 2

So the empirical formula is C₄H₂N₂

6 0

2 years ago