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irinina [24]
3 years ago
12

If you somehow added a proton to a calcium atom, it would be

Chemistry
1 answer:
ahrayia [7]3 years ago
5 0
Adding a proton to a calcium atom would change its identity, it would no longer be a Calcium atom. It would be a Scandium (Sc) atom.
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Is oxygen a beginning substance or ending substance?
stiks02 [169]

Answer:

Explanation:

The substances that are present at the beginning are called reactants and the substances present at the end are called products. Sometimes when reactants are put into a reaction vessel, a reaction will take place to produce products. Reactants are the starting materials, that is, whatever we have as our initial ingredients.Oxygen, a colorless, odorless, tasteless gas essential to living organisms, being taken up by animals, which convert it to carbon dioxide; plants, in turn, utilize carbon dioxide as a source of carbon and return the oxygen to the atmosphere. Oxygen forms compounds by reaction with practically any other element.

4 0
3 years ago
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As white light passes through a prism, the light is ____<br><br> A. Reflected <br> B. Refracted
noname [10]

Answer:

Refracted

Explanation:

White light refracts when it passes through a prism. Each wavelength refracts at a different angle, and the emergent light forms a rainbow.

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3 years ago
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Two methods by which we can conserve water and water the plants.
Natalka [10]

Answer:

Two methods which help us to conserve water are:

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3 0
2 years ago
1.00g of a metallic element reacts completely with 300cm3 of oxygen at 298K and 1 atm pressure to form an oxide which contains O
elena55 [62]

Answer:

The metal is most likely calcium which has a molar mass of 40.078 g

<em>Note: The question is incomplete. The complete question is given below:</em>

1.00g of a metallic element reacts completely with 300cm3 of oxygen at 298K and 1 atm pressure to form an oxide which contains O2– ions. The volume of one mole of gas at this temperature and pressure is 24.0dm3 .

What could be the identity of the metal?

<em>A calcium B magnesium C potassium D sodium</em>

Explanation:

Number of moles of the oxygen gas reacted is first determined:

Volume of oxygen gas = 300 cm³ = 0.30 dm³

1 mole of a gas occupies 24.0 dm³ at this temperature and pressure

Number of moles of oxygen gas that will occupy 0.30 dm³ = 0.3/24 = 0.125 moles

Let M be represent the metallic element. The equation of the reaction will be:

2M + O₂ ----> 2MO

From the equation of reaction;

2 moles of the metal reacts with 1 mole of oxygen gas

2 * 0.125 moles of the metal will react with 300 cm³ of oxygen  = 0.025 moles

Since the mass of the metal that reacted with oxygen is 1.0 g, therefore, 1.0 g of the metal = 0.025 moles

mass of 1 mole of the metal = 1 /0.025 = 40.0 g

Therefore, the metal is most likely calcium which has a molar mass of 40.078 g

5 0
2 years ago
What is chemical formula and equation ?
Daniel [21]

The answer to your question is,

Chemical formula is "a mathematical relationship or rule expressed in symbols". For example, H2 + O = H2O. < Water.

The equation H2 + O = H2O is two elements combining together. H, hydrogen. O, Oxygen. They form together to make a new compound of elements. Water. :))

-Mabel <3

8 0
3 years ago
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