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Nastasia [14]
3 years ago
5

Earth would fly off into space in a straight line if the ______________________________

Chemistry
1 answer:
blsea [12.9K]3 years ago
5 0

Answer:

<u>Gravity</u>

Earth would fly off into space in a straight line if the <u>gravity</u>

between Earth and the Sun ended

Explanation:

The Earth's orbit is made through gravity and inertia. If gravity between the Sun and Earth had ended, inertia would make the Earth travel in a straight line because there is no gravity to pull it towards the sun and keep it in motion.

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Please help me !!!!
just olya [345]

Answer:

12, 28, 16

Explanation:

If we are trying to find mass, neutrons are our guy. 28 "mass points" means 28 neutrons. Each neutron is one point

We know there are 12 protons and electrons if we look at a table of elements, the number in the top-left is always the number of protons and we can subtract mass from the protons to get our electrons

3 0
3 years ago
Water is unique because
wolverine [178]

Answer:

b. It exists in three different states at normal conditions in the Earth's atmosphere  

Explanation:=

Snow, rain and water vapour can exist at normal conditions in the Earth's atmosphere.

a. is wrong. Only hydrogen and helium can escape Earth's atmosphere in significant amounts.

c. is wrong. The molecules of every substance are in motion even when it is solid.

d. is wrong. Other substances can form from a wide range of chemical processes.

e. is wrong. All substances expand when they become a gas.

7 0
3 years ago
Which elements on the periodic table fulfill the octet rule​
horsena [70]

Answer:

Noble Gases

Explanation:

The Noble Gases have a full valence shell of 8 electrons. They are stable in that sense.

8 0
3 years ago
When you use a crowbar to lift a large rock, you are working against the force called
Ne4ueva [31]
Gravity. The rock is being pushed down and you are counteracting that force with a crowbar pushing it upward.
7 0
3 years ago
A formic acid buffer solution contains 0. 20 m h c o o h hcooh and 0. 24 m h c o o − hcoox−. the pka of formic acid is 3. 75. wh
irina1246 [14]

A buffer solution contains an equivalent amount of acid and base. The pH of the solution with an acid dissociation constant (pKa) value of 3.75 is 3.82.

<h3>What is pH?</h3>

The amount of hydrogen or the proton ion in the solution is expressed by the pH. It is given by the sum of pKa and the log of the concentration of acid and bases.

Given,

Concentration of salt [HCOO⁻] = 0.24 M

Concentration of acid [HCOOH] = 0.20 M

The acid dissociation constant (pKa) = 3.75

pH is calculated from the Hendersons equation as,

pH = pKa + log [salt] ÷ [acid]

pH = 3.75 + log [0.24] ÷ [0.20]

= 3.75 + log (1.2)

= 3.75 + 0.079

= 3.82

Therefore, 3.82 is the pH of the buffer.

Learn more about pH here:

brainly.com/question/27181245

#SPJ4

6 0
2 years ago
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