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kaheart [24]
3 years ago
8

Which number in a chemical formula tells you how many atoms of element you have

Chemistry
2 answers:
galina1969 [7]3 years ago
4 0

Answer:it doesn’t

Explanation:

Ne4ueva [31]3 years ago
4 0

Answer:

Subscript

Explanation:

Atoms in a chemical formula are represented by a subscript.

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Diatomic gases such as H2(g), O2(g), and N2(g) contain ________ bonds.
Studentka2010 [4]
Diatomic gases contain covalent bond
6 0
3 years ago
Which of these statements is not true about chemical reaction rates?
xeze [42]
Temperature can change a reaction rate because adding or taking away heat means energy is being added or taken away. When energy is added, the particles speed up, so there is a greater chance of the reactants colliding to form the products, which increases the reaction rate. When energy is taken away, the particles more slower, so they don't collide as easily, which slows down the reaction rate.

Therefore, the answer is D.
3 0
3 years ago
Read 2 more answers
18. Use the activity series to predict whether the following synthesis reaction will occur. Write the chemical equations for the
MAXImum [283]

<u>Answer:</u> The chemical reaction for the synthesis reaction is given below.

<u>Explanation:</u>

Synthesis reaction is defined as a chemical reaction in which two small chemical substances combine together to form a single compound. The general equation for this chemical reaction follows:

A+B\rightarrow AB

For the reaction of calcium and oxygen combining together to form calcium oxide, the equation follows:

2Ca(s)+O_2(g)\rightarrow 2CaO(s)

By Stoichiometry,

2 moles of calcium element combines together with 1 mole of oxygen gas to produce 2 moles of calcium oxide.

Hence, the chemical equation for the reaction is given above.

8 0
3 years ago
A neutral Atom of silicon-30 contains 14 protons . How many electrons does it have ?
svetoff [14.1K]

14 right??? i hope this helps

3 0
3 years ago
How many atoms are in the 3.5 moles of arsenic atoms?
Dmitry_Shevchenko [17]
Number of atom in one mole = 6.022 × 10²³
So, in 3.5 moles, it would be: = 6.022 × 10²³ * 3.5 = 2.1 × 10²⁴

In short, Your Answer would be 2.1 × 10²⁴ atoms

Hope this helps!
6 0
3 years ago
Read 2 more answers
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