Which compound is a saturated hydrocarbon?

Answers

Answer 1

Answer: Saturated hydrocarbons are organic compounds that contain only single bonds between the carbon atoms. They are known to be the simplest organic compounds. They are termed as such because they are saturated with water. Examples are the alkanes (ethane, methane, propane, butane, etc.).

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The reaction Ba(NO3)2(aq) + Na2SO4(aq) → 2NaNO3(aq) + BaSO4(s) goes to completion because a

Which kind of reaction is shown below?

2H2O2 → 2H2O + O2

Answers

The type of reaction is a redox reaction.

This is a redox reaction/equation.

How many grams of calcium bromide are in 50.0 mL of a 0.25 M calcium bromide solution?

Answers

The mass of the compound can be calculated by the molarity. The mass of the calcium bromide in the given solution is 2.5 g.

The mass of the given compound can be calculated by the molarity formula,

$\bold {M = \frac {w}{m* v} * 1000}\n\n\bold {w = \frac {M* m* v}{ 1000}}$

Where,

M- molarity of the solution = 0.25 M

w - given mass =?

m -molar mass of Calcium bromide = 200 g/mol

v-volume in mL= 50 mL

Put the values in the formula,

$\bold {w = \frac {0.25* 200* 50}{ 1000}}\n\n\bold {w = 2.5\ g}$

Therefore, the mass of the calcium bromide in the given solution is 2.5 g.

To know more about Molarity,

brainly.com/question/12127540

$C_(m)=(n)/(V_(r))\n\nm=(m)/(M)\n\nC_(m)=(m)/(MV_(r)) \ \ \ \ \Rightarrow \ \ \ \ m=C_(m)MV_(r)}\n\nC_(m)=0.25(mol)/(L)\nM_{CaBr_(2)}=200(g)/(mol)\nV_(r)=50mL=0.05L\n\nm=0.25(mol)/(L)*200(g)/(mol)*0.05L= \emph{\textbf{2.5g}}$

Based on the Arrhenius theory, when potassiumhydroxide dissolves in water, the only negative
ion in the aqueous solution is
(1) O2 (aq) (3) H (aq)
(2) OH2 (aq) (4) OH (aq)

Answers

Answer : The correct option is, (4) $OH^-(aq)$ .

Explanation :

According to the Arrhenius theory, an acid is a substance that ionizes in water to gives $H^+$ ions (hydronium ions or hydrogen ions) and a base is a substance which ionizes in water to gives $OH^-$ ions (hydroxide ions).

As we know that when the potassium hydroxide (KOH) dissolves in water or ionizes in water to gives $OH^-$ ions (hydroxide ions) and $K^+$ ions (potassium ion). That means $OH^-$ ion is a negative ion in aqueous solution and $K^+$ ions is a positive ion in aqueous solution.

Hence, the correct option is, (4) $OH^-(aq)$ .

(4) $OH^(-)$ (aq)

That's the answer.

Based on its location on the periodic table, which metal is likely to be less reactive than rubidium and more reactive than calcium?potassium (K)

cesium (Cs)

magnesium (Mg)

titanium (Ti)

Answers

Answer: Potassium is the element which is less reactive than rubidium and more reactive than Calcium.

Explanation: Reactivity of an metal is defined as the tendency to loose electrons easily. In a periodic table, the reactivity increases down the group as size of the metal increases. The reactivity decreases across a period as the size of the metal decreases.

Rubidium lies in group 1, which has elements in the series: H, Li, Na, K, Rb, Cs and Fr.

And Calcium lies in period 4 which has elements in the series: K, Ca, (1st transition series), Ga, Ge, As, Se, Br and Kr.

So, the element to have reactivity more than rubidium and less than Calcium must be Potassium (K).

Answer:

A is the correct answer on edge

Explanation:

A)potassium (K)

Light energy used for photosynthesis is absorbed by ____ found in plant cells.mitochondria
cytoplasm
chlorophyll
nuclei

Answers

Light energy used for photosynthesis is absorbed by chlorophyll found in plant cells. Chlorophyll, the green substance found in a plant's chloroplasts, is what gives the plant its pigmentation. It is also the one that absorbs light energy in order for photosynthesis to proceed. Light energy converts CO2 and water into glucose, the food used by plants.

Physical or chemical change? what gave you the idea that it was such?

Answers

Answer:

chemical change

Explanation:

signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.

Give me brainliest plz

Answer:

Chemical change

Explanation:

because it tranformed into something else

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