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Ivahew [28]
3 years ago
7

What is the tiny structure inside a cell

Chemistry
1 answer:
neonofarm [45]3 years ago
7 0
Nucleus............ithink
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An experiment is carried out to determine how different pH values of soil will affect the growth of tomato
Aleks [24]

Answer:

How high the plants grow in the different soils.  

Explanation:

The dependent variable is what happens as a result of what the experimenter changes.  

The experimenter could measure how high the plants grow when placed in soil with different pH values.

5 0
4 years ago
sodium reacts with chlorine to form sodium chloride, explain how in terms of electrons, atoms and ions
OverLord2011 [107]
Sodium is in group 1 so it has 1 valence electron (one electron in its outer shell). Sodium will be looking to lose its one valence electron in order to become more stable. Chlorine is in group 17 so it has 7 valence electrons, and therefor only needs to gain one valence electron to attain noble gas electron configuration (become stable with 8 valence electrons, just like the noble gases in group 18 have 8). Because the chlorine atom is trying to gain one electron, and the sodium atom is trying to lose one, sodium will give up its one valence electron to chlorine and the two atoms will form an ionic bond. Because chlorine is looking to gain just one electron and sodium is looking to lose the same number, the ratio of chlorine atoms to sodium atoms will be 1:1, one chlorine atom per one sodium atom.
7 0
3 years ago
Read 2 more answers
What are three examples of organic matter in soil
Alborosie

Answer:

Bacteria, fungi and nematodes

5 0
3 years ago
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Which statement correctly describes gravity? Group of answer choices an attractive force that acts between all objects without c
juin [17]

Answer:

i believe the answer is B.

Explanation :

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.

5 0
3 years ago
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a mixture of emanations from radioactive atoms is passed through electrically charged plates imagination number one is attracted
slava [35]
Hello there!

The nuclear emanations 1, 2 and 3 are called, respectively:

1) Alpha, beta and gamma

Alpha Radiation consists of two protons and two neutrons, as protons are positive particles, they will be attracted to the negatively charged plate.

Beta Radiation 
is composed of a high-energy electron. As electrons are negative particles, they will be attracted to the positively charged plate.  

Gamma Radiation is composed or photons. Photons don't have charge or mass, and they will not be attracted to the charged plates. This kind of radiation is more penetrating than the other two.

Have a nice day!
3 0
3 years ago
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