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EleoNora [17]
3 years ago
14

What is x, If the equationis 7+9-4÷12

Chemistry
1 answer:
jarptica [38.1K]3 years ago
7 0
47/3 which could be simplified to 15.6
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Pls answer quickkk :)))
postnew [5]

Answer:

c turns back when iodine is added result indicated a chemical reaction

4 0
3 years ago
What does NOT affect the characteristic properties of an element?
bazaltina [42]

Answer:

characteristic properties of an element are the defining properties of that element and it does not change with quantity of the element used.

Explanation:

the amount or the quantity of the element used does not affect the characteristic property of the element. it does not matter is the if the amount or the quantity of the element used in the reaction is large  or the small the characteristic properties like boiling point, melting point, density, thermal conductivity, etc remain the same or remain constant.

5 0
3 years ago
match the number of negative charges to the number of positive charges to make each combination balanced (see image for answer)
BartSMP [9]

Answer : The correct match is:

1 positive charge = 1 negative charge

2 positive charges = 2 negative charges

3 positive charges = 3 negative charges

Explanation :

As we now that there are three subatomic particles which are protons, electrons and neutrons.

The protons and neutrons are located inside the nucleus and electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and neutrons are neutral.

As we know that all the things are made up of charges and opposite charges attract to each other.

In a neutral atom, the positive charges and negative charges are balanced in an object. That means, in neutral atom the number of positive charges are equal to the negative charges.

So we can say that:

1 positive charge = 1 negative charge

2 positive charges = 2 negative charges

3 positive charges = 3 negative charges

5 0
3 years ago
Please answer these questions
lions [1.4K]
I found number one
Atoms are not drawn to scale. Molecules of compounds have atoms of two or more different elements. For example, water (H2O) has three atoms, two hydrogen (H) atoms and one oxygen (O) atom. Methane (CH4), a common greenhouse gas, has five atoms, one of carbon (C) and four of hydrogen (H, see Fig.
7 0
3 years ago
Read 2 more answers
What is any element that is a good conductor of heat and electricity and forms bonds/cations with non-metals?
SashulF [63]
It’s A. Metal is a good conductor for heat and electricity, and can form binary ionic compounds with non-metals.
6 0
2 years ago
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