If 10 milliliters of liquid has a mass of 70 grams, what is its density?O 7 g/mL
70 g/mL
0.7 g/mL
700 g/mL
Answers
Answer:
The answer is 7 g/mL
Explanation:
The density of a substance can be found by using the formula
From the question
mass = 70 g
volume = 10 mL
We have
We have the final answer as
7 g/mL
Hope this helps you
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What information does a chemical formula of a compound provide?a. The type and amount of elements b. The different kinds of compounds included within the chemical formula c. The types of molecules present in a formula d. The correct amounts of substances to mix together to make a formula
. 222/86 Rn decays by emission of an alpha particle. The product of this decay is A. 226/88 Ra B. 218/84 Po C. 218/88 Ra D. 220/86 Rn
Which value from his calculation most strongly affects the number of significant figures in the answer?
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Elements in the same group react similarly. E.g. the group 1 metals (found in the first column of the periodic table) react readily with air and water (this is the similarity) but these reactions become more vigorous / explosive as you go down the group (this is why they are similar but not the same). This is because elements in the same group have the same number of electrons in their outermost energy level (and electrons are responsible for how an element reacts)
Elements in the same period of the periodic table have the same number of inner most (also known as 'main') energy levels so have the same amount of electron shielding.
Answers
As you have not provided the options, still we can figure out the answer by understanding the key difference between saturated and unsaturated hydrocarbons.
SATURATED HYDROCARBONS are those hydrocarbons which only consist of a carbon carbon single bonds. All the bonds are sigma there are no pi bonds at all. Examples are shown below.
While, UNSATURATED HYDROCARBONS are those hydrocarbons which may contain either a double bond or triple bonds or both of them between the carbon atoms as shown below.
Final answer:
A saturated hydrocarbon has only single bonds, like methane (CH4), while an unsaturated hydrocarbon contains double or triple bonds, like ethene (C2H4).
Explanation:
To categorize a hydrocarbon as saturated or unsaturated, we need to look at the types of bonds it has. A saturated hydrocarbon, such as alkanes, has only single bonds between carbon atoms. For example, methane is a saturated hydrocarbon because it's formula, CH4, indicates only single bonds. On the other hand, an unsaturated hydrocarbon, such as alkenes and alkynes, contains double or triple bonds. An example of an unsaturated hydrocarbon is ethene (C2H4), an alkene which consists of a double bond between the two carbon atoms.
Learn more about Saturated and Unsaturated Hydrocarbons here:
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Answers
A lithium cation ion is smaller than a lithium atom. In lithium cation it has lost electrons, which causes the remaining electrons to be pulled in stronger by the positive charge in the nucleus. As they get closer to the nucleus decreases the overall size of the atom.
The bigger they are (the more electrons it has) the less effective the proton's pull will be. So if we were talking about a lithium anion (where electrons are gained) then it would be bigger than a lithium atom.
Lithium cation and Lithium atom can be compared as follow;
1) Charge:
The charge on Lithium atom is zero means, it has same number of protons and electrons. Hence, the nert effect is cancelled out and the atom gets zero charge.
On the other hand, Lithium cation is formed when it looses one electron. Therefore, the number of protons are greater by one number as compared to number of electrons resulting in the formation of +1 charge as shown below,
Li → Li⁺¹ + e⁻
2) Size:
Secondly, Lithium atom has greater size as compared to Lithium cation because due to presence of greater number of protons compared to electrons in Lithium cation the nuclear charge appears to be greater as compared to neutral atom hence, pulling the valence electrons more effectively making the lithium cation smaller in size as compared to neutral atom.
3) Reactivity:
We can also compare the reactivity of both species. The neutral will be more reactive than the charged atom because it is containing one valence electron and can donate it when ever it comes in contact with non-metals.
(2) from the person to the ice and air, and from the air to the ice
(3) from the ice to the person, only
(4) from the ice to the person and air, and from the air to the person
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Answer:
Rate the verified person brainliest. *kero*
Explanation:
b. suspension.
c. solvent.
d. solute.
Answers
Answer:
suspension
Explanation: