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valentina_108 [34]
3 years ago
5

Rainly

Chemistry
1 answer:
Pani-rosa [81]3 years ago
5 0

Answer:

b.  obtain

Explanation:

Let us look at all the answers definitions,

Sponsor would not work as it talks about a company offering you something in back for an advertisement.

Obtain would work as it means to acquire something.

Neglect would not work because it means to fail to care for something properly

Dismiss wouldn't work because it means to leave or allow to exit

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What would happen if the number of protons were to change in an atom
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you would change one element to a diffrent element

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3 years ago
How does the environment influence natural selection?
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The environment affects natural selection. Speices need to adapt to changes in environmnet. The weaker organisms which fail to adapt to environment perish while the stronger ones who adapt to the environment survive. This is how environment affects natural selection.
7 0
3 years ago
How many atoms of of titanium are present in a sample containing 0.375 moles Ti
Natasha2012 [34]

2.258302785 x 10^{23} atoms of titanium are present in a sample containing 0.375 moles of Ti.

<h3>What are moles?</h3>

A mole is defined as 6.02214076 × 10^{23} of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

To find the number atoms we need to multiply by 6.02214076 × 10^{23}.

0.375 moles x  6.02214076 × 10^{23}

2.258302785 x 10^{23}

Hence, 2.258302785 x 10^{23} atoms of titanium are present in a sample containing 0.375 moles of Ti.

Learn more about moles here:

brainly.com/question/8455949

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6 0
2 years ago
The mass of 1.49 of H2 gas at stp
FinnZ [79.3K]

Answer:

Explanation:

I'll assume 1.49 is liters.

All gases occupy 22.4 L for each mole of gas at STP.  This makles a very useful, and important, conversion factor:

(22.4L/mole gas) for all gases at STP.

Therefore 1.49L of H2 would be:

(1.49L H2)/(22.4L/mole gas) = 0.0665 moles

The molar mass of H2 is 2, so:

(0.0665 moles)*(2g/mole) = 0.133 grams to 3 sig figs

3 0
3 years ago
A dark grey rock has a mass of 80 grams. When dropped in water, it makes the water level rise from 70 mL to 90 mL. What is the d
podryga [215]

Answer:

I don't remember how to label it, but it is 20.

Explanation:

The answer is 20 because once you dat the rock in the water, that is how much it changed.

5 0
3 years ago
Read 2 more answers
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