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3 years ago

What type of element has properies unlike metal?

Chemistry

1 answer:

Scilla [17]3 years ago

8 0

<span>Aluminum,Gallium,Indium,Tin,Thallium,Lead,Bismuth</span>

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Magnesium bromide is prepared in a laboratory using the reaction below. Typically, the magnesium bromide is recoveted as a solid

Amiraneli [1.4K]

Can you give more examples?

6 0

3 years ago

PLZ HELP!!!!!!!!!!!!!!!!!!!!!!!!!Describe Earth's rotation and revolution . Be sure to include the durations and what they are r

Sedbober [7]

Answer:

BRAINLIEST?

"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object. For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year.

Explanation:

7 0

2 years ago

What does heat and pressure have to do with<br> the rock cycle?

UkoKoshka [18]

Answer

Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock. The word "metamorphic" comes from Greek and means "To Change Form". ... This changing of rock types is called the "Rock Cycle".

Explanation:

4 0

3 years ago

Question 2 Calculate the pH of a solution that has an acetic acid concentration of 0.05 M and a sodium acetate concentration of

Eva8 [605]

Answer : The pH of the solution is, 4.9

Explanation : Given,

Dissociation constant for acetic acid = $K_a=1.8\times 10^{-5}$

Concentration of acetic acid = 0.05 M

Concentration of sodium acetate = 0.075 M

First we have to calculate the value of $pK_a$ .

The expression used for the calculation of $pK_a$ is,

$pK_a=-\log (K_a)$

Now put the value of $K_a$ in this expression, we get:

$pK_a=-\log (1.8\times 10^{-5})$

$pK_a=5-\log (1.8)$

$pK_a=4.7$

Now we have to calculate the pH of buffer.

Using Henderson Hesselbach equation :

$pH=pK_a+\log \frac{[Salt]}{[Acid]}$

$pH=pK_a+\log \frac{[CH_3COONa]}{[CH_3COOH]}$

Now put all the given values in this expression, we get:

$pH=4.7+\log (\frac{0.075}{0.05})$

$pH=4.9$

Therefore, the pH of the solution is 4.9.

8 0

3 years ago

In order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be

PSYCHO15rus [73]

Answer:

Decrease occur in the amount and flow of water bodies.

Explanation:

There is decrease in the amount and flow of water from water bodies such as rivers and lakes etc occur when the river is diverted from large water bodies because the water flows to the diverted sides and decrease occurs in the amount of water in the rivers and lakes. Those regions from where this river passes can also be negatively affected due to low amount of water they receives for their daily needs or for cultivation of crops so we can say that this diversion has adverse effect on other populations.

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3 years ago