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choli [55]
3 years ago
14

How many total atoms are in 1 mole of H2O?

Chemistry
1 answer:
Licemer1 [7]3 years ago
3 0

Answer:

1.806 x 10^24 atoms total

Explanation:

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How many protons and neutrons does Polonium-211 have?​
Stells [14]

Answer:

Protons: 84

Neutrons: 127

Explanation:

The number of protons is the atomic number. The number of neutrons can be found by subtracting the proton number (84) from the isotope number (211)

3 0
3 years ago
You want to experiment to see how long it takes for water, hydrogen peroxide, and vinegar to boil. You decide heat up 10 mL of w
aleksley [76]

Answer:

B

Explanation:

6 0
3 years ago
What is oh in final solution prepared by mixing 20 ml of 0.05 m hcl with 30 mlof .10m barrium oxide​
STALIN [3.7K]

Answer:

prepared by mixing 20 ml of 0050 m hcl with 30 ml of 010 m ba oh 2 ... No. of milliequivalents of HCl = 2× 0.05 × 1. =1.

Explanation:

is this ?

3 0
3 years ago
Which statement best describes the variables in a controlled experiment?
RUDIKE [14]

The statement that best describes the variables in a controlled experiment is independent variable while all other conditions are unchanged.

<h3>What is an experiment?</h3>

An experiment is a scientific research, findings or investigation about a subject matter with the aim of validating a claim and establishing theories.

A controlled experiment refers to an experiment in which the variables involved and the control factor are kept in the same group except for one variable which can be changed.

Therefore, The statement that best describes the variables in a controlled experiment is independent variable while all other conditions are unchanged.

Learn more about experiment below.

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8 0
2 years ago
Mendeleev devised his periodic table by ordering the elements according to their atomic number.
marusya05 [52]

Answer:

False

Explanation:

The given statement is false.

Mendeleev devised periodic table by arranging elements in increasing order of their atomic masses.

According Mendeleev, physical and chemical properties of the elements are function of their atomic masses.

Henry Moseley arranged elements in increasing order of atomic number. Periodic table based on increasing order of atomic number is called modern periodic table.

7 0
3 years ago
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