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3 years ago

When the hydrogen atom of one water molecule and the oxygen atom of another molecule come together, an what forms?

Chemistry

1 answer:

VARVARA [1.3K]3 years ago

7 0

H2O I THINK THATS THE ANSWER IT SHOULD FORM WATER IF THATS WHAT YOUR ASKING ? 2 HYDROGENS 1 OXYGEN .

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A compound is found to contain 33.3%

kakasveta [241]

Answer: CaSO3

Explanation:Please see attachment for explanation

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4 years ago

For the chemical reaction C2H6 --> C2H4 + H2 + 137kJ, the chemical energy of the

algol [13]

Its b) reactant and the chemical energy of the

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3 years ago

Which of the following statements about atoms is true?

makkiz [27]

Answer:

d. All of the above three answers are correct

Explanation:

Atoms are themselves built up from many smaller particles. According to Rutherford's nuclear theory (1906), the neutron and proton make up the nucleus of the atom. Atoms are electrically neutral because they contain the same number of electrons and protons. The size of atoms is about $10^{-10}$ meters. The fundamental particle of the atom is the electron.

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3 years ago

A student takes a measured volume of 3.00 M HCl to prepare a 50.0 mL sample of 1.80 M HCL. What volume of 3.00 M HCI

netineya [11]

To solve the question you use the following formula:

concentration (1) × volume (1) = concentration (1) × volume (1)

3 M × volume (1) = 1.8 M × 50 mL

volume (1) = (1.8 M × 50 mL) / 3 M = 30 mL

8 0

4 years ago

Read 2 more answers

A sunscreen preparation contains 2.60 % by mass benzyl salicylate. If a tube contains 6.0 oz of sunscreen, how many kilograms of

Marrrta [24]

Answer : The mass of benzyl salicylate needed to manufacture 350 tubes of sunscreen are, 1.55 kg

Explanation :

As we are given that a sunscreen preparation contains 2.60 % by mass benzyl salicylate. That means, 2.60 grams of benzyl salicylate present in 100 g of solution.

First we have to convert the given mass from oz into kg.

Conversion used:

1 kg = 35.274 oz

or,

$1oz=\frac{1}{35.274}kg$

So,

$6oz=\frac{6oz}{1oz}\times \frac{1}{35.274}kg=0.1701kg$

Now we have to determine the mass of benzyl salicylate.

As, 100 g of solution contains mass of benzyl salicylate = 2.60 g

So, 0.1701 kg of solution contains mass of benzyl salicylate = $\frac{2.60g}{100g}\times 0.1701kg=0.00442kg$

Now we have to determine the mass of benzyl salicylate are needed to manufacture 350 tubes of sunscreen.

Mass of benzyl salicylate in 350 tubes of sunscreen = 0.00442 kg × 350

Mass of benzyl salicylate in 350 tubes of sunscreen = 1.55 kg

Thus, the mass of benzyl salicylate needed to manufacture 350 tubes of sunscreen are, 1.55 kg

6 0

4 years ago