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3 years ago

What are valence shell electrons?

1 answer:

4 0

Valence shell electrons are electrons, (e- for short) that live in the outermost shell of the e- cloud. These e- are often the ones associated with reactivity and bonding.

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When 1 carbon atom combines with 2 oxygen atoms, the resulting substance is called a

PIT_PIT [208]

Answer:

Carbon Dioxide

Explanation:

Which is a compound:)

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3 years ago

5. A hollow glass sphere has a volume of 350 mL and

Rina8888 [55]

Explanation:

Given that,

Volume of a hallow glass sphere is 350 mL

Specific gravity is 1.252

We need to find the weight of the sphere. The ratio of density of substance to the density of water is called specific gravity.

The density of water is 1 g/mL

$\text{specific gravity}=\dfrac{\text{density of substance}}{\text{density of water}}\\\\SG=\dfrac{m}{V\times \rho_w}\\\\m=SG\times V\times \rho_w\\\\m=1.252\times 350\ mL\times 1\ g/mL\\\\m=438.2\ \text{grams}$

We know that,

1 pound = 453.592 grams

So,

m = 0.97 lbs

So, the weight of the sphere is 0.97 lbs or 0.97 pounds.

5 0

4 years ago

Hot magma may:

Oksana_A [137]

Answer:

it is d

Explanation:

because if hot magma is hot wonts it is cold down it actly forms it self

5 0

4 years ago

Read 2 more answers

You are working in a laboratory, and you are given the task of converting cyclopentene into 1, 5-pentanediol. Your first thought

Helen [10]

Answer:

Reagent A = $H_3O^+$

Reagent B= $Na_2Cr_2O_7~H_2SO_4~H_2O$

Intermediate C= δ-Valerolactone

Explanation:

In the reaction from the alkene to the alcohol, we can use the alkene hydration in which the hydronium ion is added to the double bond followed by the attack of water to produce the alcohol.

Then in the conversion from alcohol to ketone can be produced if an oxidant reactive is used. In this case the Jones reagent ( $Na_2Cr_2O_7~H_2SO_4~H_2O$ ).

The intermediate is a structure produced by a peroxyacid. This reaction would introduce an ester group in the cycle generating the δ-Valerolactone (Figure 1).

7 0

3 years ago

1.) How can people reduce their exposure to BPA?

MakcuM [25]

People can reduce their exposure to BPA by washing out plastic cups, buying BPA free plastics. BPA should be kept out because it can cause a chemical interference in the human body

5 0

3 years ago