What is the cloud of gases that forms around the nucleus of a comet called?a. coma
b. gas tail
c. dust tail
d. Giant Red Spot

Answers

Answer 1

Answer: The correct answer is A. cloud of gases that forms around the nucleus of a comet is called a coma. The coma is a dusty, fuzzy cloud around the nucleus of a comet. Other parts of a comet are the nucleus and the tail.

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Which is most likely why many scientists reject the cold fusion theory?

What unit of measurement would be most useful to find the volume of a standard-sized stapler? A. mm B. mm2 C. mm3 D. cm3

Answers

A is your answer okkkkkk

Directions: Write the name of the type of chemical reaction in the space provided.(Can be Synthesis Reaction, Decomposition Reaction, Combustion, Single Displacement Reaction or Double Displacement Reaction)

Answers

The given reactions are combination reaction, decomposition reaction, neutralization reaction, displacement reaction and double displacement reaction.

What is displacement reaction?

A displacement reaction is a chemical process during which a one more reactive element being replaced from its compound by a less reactive element.

What is combination reaction?

When A combination reaction occurs when one or more elements or compounds react together to generate a new chemical. Equations of the following kind are used to depict such reactions.

X+ Y→XY

6) $Fe}(s)+3{O}_(2)(g)$ → $2{Fe}_(2) {O}_(3)(s)$ , this reaction is a kind of combination reaction reaction.

7) ${Zn}_(2)(s)+2 {HCl} (aq)$ → ${ZnCl}_(2)(a q)+{H}_(2)(g)$

This reaction is a kind of displacement reaction.

8) ${MgCO}_(3)(a q)+2 {HCl}(a q)$ → ${MgCl}_(2)(a q)+{H}_(2) {O}(l)+{CO}_(2)(g)$ .

This reaction is a kind of combustion reaction.

9) ${NiCl}_(2)(s)$ → ${Ni}(s)+{Cl}_(2)(g)$ .

This reaction is a kind of decomposition reaction.

10) ${C}(s)+6 {H}_(2)(g)+{O}_(2)(g)$ → $2 C}_(2) {H}_(6) {O}(s)$ .

This reaction is a kind of combination reaction.

11) $\mathrm{C}_(12) \mathrm{H}_(22) \mathrm{O}_(11)(s) \rightarrow 12 \mathrm{C}(s)+11 \mathrm{H}_(2) \mathrm{O}(\mathrm{g})$ .

This reaction is a kind of dissociation reaction.

12) $2 \mathrm{LiI}(a q)+\mathrm{Pb}\left(\mathrm{NO}_(3)\right)_(2)(a q) \rightarrow 2 \mathrm{LiNO}_(3)(a q)+\mathrm{PbI}_(2)(s)$ .

This reaction is a kind of double displacement reaction.

13) $\mathrm{CdCO}_(3)(s) \rightarrow \mathrm{CdO}(s)+\mathrm{CO}_(2)(g)$ .

This reaction is a kind of decomposition reaction

14) $\mathrm{Cl}_(2)(g)+2 \mathrm{KBr}(a q) \rightarrow 2 \mathrm{KCl}(a q)+\mathrm{Br}_(2)(g)$ .

This reaction is a kind of single displacement reaction.

15) $\mathrm{BaCl}_(2)(a q)+2 \mathrm{KIO}_(3)(a q) \rightarrow \mathrm{Ba}\left(\mathrm{IO}_(3)\right)_(2)(s)+2 \mathrm{KCl}(a q)$ .

This reaction is kind of double displacement reaction.

16) $2 \mathrm{Mg}(s)+\mathrm{O} 2(\mathrm{~g}) \rightarrow 2 \mathrm{MgO}(s)$ .

This reaction is a kind of combination reaction.

17) $AgNO_(3) (aq) +KI(aq)$ → $KI(aq) + KNO_(3)(aq)$ .

This reaction is a kind of double displacement reaction.

18) $2 \mathrm{Li}(s)+\mathrm{H}_(2) \mathrm{O}(b) \rightarrow 2 \mathrm{LiOH}(a q)+\mathrm{H}_(2)(g)$ .

This reaction is a kind of single displacement reaction.

19) $\mathrm{C}(\mathrm{s})+\mathrm{O}_(2)(\mathrm{~g}) \rightarrow \mathrm{CO}_(2)(\mathrm{~g})$ .

This reaction is a kind of combination reaction.

To know more about displacement reaction click here.

brainly.com/question/3172917.

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combination reaction,decombinationreaction,displacementreaction,decombinatioreaction,neutrilizatioreaction

The equation A + BX ® AX + B is the general equation for aa.
double-replacement reaction.
c.
replacement reaction.
b.
decomposition reaction.
d.
combustion reaction.

Answers

A replacement reaction which is where the positively charged portion of one of the reactants takes on the negatively charge portion of the other reactant without giving any portion of itself to the other to form products.

replacement reaction

What is the volume of 70.0 g of ether if density os 0.70 g/mL

Answers

$D = m / V$

$0.70 g/mL = (70.0g)/(V)$

$V = (m)/(D)$

$V = (70.0g)/(0.70g/mL)$

$V = 100 mL$

hope this helps!

The Al-Aqsa Mosque and Dome of the Rock are located in

Answers

The correct answer is - Jerusalem

Burning fossil fuels in a low oxygen environment will most likely produceA) carbon monoxide.
B) hydrogen peroxide.
C) sulfuric acid.
D) methane.

Answers

Final answer:

Burning fossil fuels in a low oxygen environment most likely produces carbon monoxide due to incomplete combustion. This is because there isn't enough oxygen to react with carbon, leading to formation of carbon monoxide instead of carbon dioxide. The correct option is A.

Explanation:

When fossil fuels are burned in a low-oxygen environment, the most likely product will be carbon monoxide (A). This occurs because in a low-oxygen environment, there is not enough oxygen to react with the carbon atoms in the fossil fuels to form carbon dioxide, which is the normal product of combustion in a high-oxygen environment. Instead, each carbon atom reacts with only one oxygen atom, forming carbon monoxide instead of carbon dioxide. It's also important to note that the production of carbon monoxide in such situations is a significant health hazard as it is a poisonous gas.