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2 years ago

Help please and thank you

Chemistry

1 answer:

belka [17]2 years ago

4 0

Answer:

The climate get warmer.

Explanation:

Volcanoes can impact climate change during major explosives eruptions huge amounts of volcanic gases,aerosel droplets and ash are injected into the stratosphere. But volcanic gases like sulfur dioxide can cause global cooling while volcanic carbon dioxide, a greenhouse gas has the potential to promote global warming.

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The average person in the United States is exposed to the following amount of radiations annually. Rank the following source of

Papessa [141]

#1 is air radon, #2 is x-ray, #3 is ground, #4 is cosmic radiation, #5 is TV tube, #6 is weapons test fallout . That's all I got hope I helped!

8 0

3 years ago

Read 2 more answers

139%

GaryK [48]

Answer:

The percent composition of this compound is 94%

Explanation:

The reaction can be formed as

$2 \mathrm{Fe}+3 \mathrm{Cl}_{2} \rightarrow 2 \mathrm{FeCl}_{3}$

$\frac{\text { Weight of } \mathrm{Cl}_{2}}{\text { 3* Molar Mass of } \mathrm{Cl}_{2}}=\frac{\text { Weight of } \mathrm{Fe}}{2 * \text { Molar Mass of Fe }}$

$\frac{\text { Weight of } \mathrm{Cl}_{2}}{3 *(2 * 35.5)}=\frac{3.56}{2 * 55.8}$

$\text { Weight of } C l_{2}=\frac{3.56 * 3 * 71}{2 * 55.8}=6.79 \mathrm{g}$

$\mathrm{n}\left(\mathrm{Cl}_{2}\right)=\mathrm{m}\left(\mathrm{Cl}_{2}\right) / \mathrm{M}\left(\mathrm{Cl}_{2}\right)=6.79 / 71=0.1 \mathrm{m}$

$\mathrm{n}(\mathrm{Fe})=\mathrm{m}(\mathrm{Fe}) / \mathrm{M}(\mathrm{Fe})=3.56 / 55.8=0.06 \mathrm{m}$

Based on no. of iron reacted,

$\mathrm{n}(\text { moles of } \mathrm{Fe})=\mathrm{n}\left(\text { moles of } \mathrm{FeCl}_{3}\right)$

n = m/M

$\mathrm{m}\left(\mathrm{FeCl}_{3}\right)=\mathrm{n}^{*} \mathrm{M}=0.06^{*} 162.5=9.75 \mathrm{g}$

% composition of $FeCl_3$

= $(9.75 / 10.39)^{*} 100$

= 94%

6 0

3 years ago

What is the overall charge of a Aluminum atom that loses 3 electrons

Rudik [331]

It’s charge was neutral due to the equal number of protons and electrons. when it becomes an ion it loses 3 electrons leaving behind only 10. the answer is 10. the equation is +13 +(-10)=+3

8 0

2 years ago

Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.

marysya [2.9K]

Answer:

option A

Explanation:

hope it helps

4 0

2 years ago

A neutron collides with a nitrogen atom, resulting in a transmutation. Balance the equation. Superscript 1 Subscript 0 Baseline

o-na [289]

Answer:

A is 14

Z is 6

X is C

Explanation:

Have a great day!

7 0

2 years ago