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3 years ago

Whats the answer giving brainliest if it correct

Chemistry

1 answer:

serious [3.7K]3 years ago

5 0

Answer:

c. A flat board tilted at an angle

Explanation:

form the looks of it, and i dont wanna sound like a flat earther her, cuz im not '-', but the best option here would be the flat board at an angle becasue the earth is tilted and isnt even like it said in the prompt.

Hope this helped and idrc about brainliest :)

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How many valence electrons does calcium want to gain or lose to have a full outer shell?

grandymaker [24]

Explanation:

For example, Identify the number and type of ions formed in a reaction of calcium and carbon. Step 1: Determine the number of valence electrons for each element and whether the element loses or gains electrons. Calcium has 2 valence electrons and is a metal so it will give up two electrons.

4 0

3 years ago

Read 2 more answers

The American Heart Association recommends to eat no more than 2,301mg of sodium per day. Convert the mass of

castortr0y [4]

The mass of 2,301 grams of sodium in ounces is 0.0811757609 ounces.

The amount of sodium recommended by American heart association is 2301 mg. This limit should not be crossed in a day.

We have to convert Mass of sodium from mg to ounces.

We know,

1 ounce = 28.3459 grams.

We also know,

1 gram = 1000 milligrams.

So,

28.3459 grams = 28.3459 x 1000 milligrams.

28.3459 grams = 28345.9 milligrams.

1 ounce = 28345.9 mg.

1 mg = 1/28345.9 ounces

Weight of sodium 2301mg in ounces,

2301mg = 2301/28345.9 ounces

Dividing till last significant figure,

2301 mg = 0.0811757609 ounces.

Mass of sodium in ounces is 0.0811757609.

To know more about Unit conversion, visit,

brainly.com/question/97386

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4 0

1 year ago

Hello people ~<br>Help me with this question.<br>Thanks in advance!

Alekssandra [29.7K]

Hello!

The pollution due to oxides of sulfur gets enhanced due to the

presence of :

(a) particulate matter
(b) ozone
(d) hydrogen peroxide

∴ The correct option is : <u>(4) (a),(b),(d) only</u>

3 0

2 years ago

Can someone help me identify the elements please, i rlly need help

rewona [7]

Answer:

1 : any of more than 100 substances that cannot by ordinary chemical means be separated into different substances Gold and carbon are elements. 2 : one of the parts of which something is made up There is an element of risk in surfing. 3 : the simplest principles of a subject of study the elements of arithmetic.

Explanation:

7 0

3 years ago

A copper cylinder, 12.0 cm in radius, is 44.9 cm long. If the density of copper is 8.90 g/cm^3, calculate the mass in grans of t

zlopas [31]

Answer:

we use: V = pi*(r^2)*h

V = 3.14*(12.0cm^2)*44.0 cm

V = 19895.04 cm^3

Therefore, mass = (8.90g/cm^3) * (19895.04 cm^3) = 177065.856 g

Explanation:

5 0

3 years ago