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olga nikolaevna [1]
2 years ago
15

Please help I'm begging you I'll give so much brainliest​

Chemistry
1 answer:
slava [35]2 years ago
6 0
H2O (water) has 2 hydrogen atoms and 1 oxygen atom.
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The accepted value for the density of a certain material is 3.427 g/ml. Ally 10 points
vivado [14]

Answer:

5.04%

Explanation:

The accepted value of density = 3.427 g/ml

The calculated value of density = 3.600 g/ml

We need to find Ally's percentage error on  her density. The error in any value is given by :

\%=\dfrac{\text{calculated-accepted}}{\text{accepted}}\times 100\\\\=\dfrac{3.427 -3.600 }{3.427 }\times 100\\\\=5.04\%

So, the required error is 5.04%.

7 0
2 years ago
A(n) _____ bond joins these two oxygen atoms. Two oxygen atoms with two electron shells. The atoms share four electrons located
Lisa [10]

Answer:

double covalent bond  

Explanation:

Double covalent bond -

It is the type of interaction observed between two species , which share the electrons in order to attain stability , is referred to as covalent bond.

The shared electrons are referred to as the bonding pairs or the shared pairs .

Stability and completion of the octet is the driving force for the formation covalent bond.

The molecules of the organic compound usually shows this type bonding .

A double covalent bond is the one which have four shared pair of electrons , i.e. two covalent bonds.

Hence , from the question,

Oxygen is capable to show double covalent bond .

6 0
3 years ago
Please mark all that apply!
Nitella [24]

Answer:

F G there you go the guy on top is right

Explanation:

F G

7 0
3 years ago
Isotopes of carbon differ with the respect to the number of
hodyreva [135]

Answer:

Neutrons.

Explanation:

Isotopes can be defined as the atom of an element that has the same number of protons but different number of neutrons. This ultimately implies that, the isotopes of an element have the same atomic number (number of protons) but different atomic mass (number of nucleons).

The isotope of an element is denoted by X^{A}_{Z}

Where; X is the symbol of the element.

A is the atomic mass or number of nucleons.

Z is the atomic number or number of protons.

<em>Therefore, the number of neutrons = A - Z</em>

<em>Isotopes of carbon differ with respect to the number of neutrons.</em>

<em>Basically, there are three (3) Isotopes of Carbon and these are;</em>

<em>1. Carbon-12: it has an atomic mass of 12 with 6 numbers of proton and neutron respectively. </em>

<em>2. Carbon-13: it has an atomic mass of 13 with 6 numbers of proton and 7 numbers of neutron. </em>

<em>3. Carbon-14: it has an atomic mass of 14 with 6 numbers of proton and 8 numbers of neutron.  </em>

8 0
3 years ago
Which reaction removes hydrogen ions from the blood?
Mrrafil [7]
Pulmonary ventilation, and carbonic acid-bicarbonate buffering system
3 0
3 years ago
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