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Phantasy [73]
3 years ago
11

PLEASE!! *MEASURING MATTER VOCAB MATCHING*

Chemistry
1 answer:
Airida [17]3 years ago
3 0
Matter - anything with mass and occupies space
accuracy - an indication of how close a measurement is to the correct result
precision - the degree to which a measurement can be replicated
meniscus - the curved top surface of a liquid column
volume - spaced occupied measured in cubic units
density - mass of an object per unit volume
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Fusion occurs constantly on our sun, which produces most of its energy via the nuclear fusion of hydrogen into helium. Neither do fusion reactions produce the large amounts of dangerous radioactive waste that fission reactions do. That's why it's such a dreamy source of energy.
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Mike mixes two chemicals in a container. The container quickly becomes very hot.
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The chemicals are reactive with one another
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2 years ago
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Rubbing alcohol is less polar than water. Both are liquids at room temperature which One boils first? why?
Sergeeva-Olga [200]

Answer:

because both liquid are made from different substances.

Explanation:

8 0
3 years ago
In a 100 g sample of iron(III) oxide, how many grams of iron are present?
e-lub [12.9K]
The formula of Iron(III) oxide is Fe2O3
In order to calculate the mass of iron in a given sample of iron(III) oxide, we must first know the mass percentage of iron in iron(III) oxide. This is calculated by:
[mass of iron in one mole of iron(III) oxide/ mass of one mole of iron(III) oxide] * 100 
= [(moles of iron * Mr of iron) / (moles of Iron * Mr of Iron + moles of Oxygen * Mr of Oxygen)] * 100
= [(2 * 56) / (2 * 56 + 3 * 16)] * 100
= (112 / 160) * 100
= 70%
Thus, in a 100g sample, the weight of iron will be:
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8 0
3 years ago
Using the Br?nsted-Lowry concept of acids and bases, identify the Br?nsted-Lowry acid and base in each of the following reaction
antiseptic1488 [7]

Answer:

H_2PO_3^- is Bronsted Lowry base.

H_2O is Bronsted Lowry acid.

Explanation:

According to the Bronsted Lowry conjugate acid-base theory:

  • An acid is defined as a substance which donates protons and form conjugate base
  • A base is defined as a substance which accepts protons and forms conjugate acid.

H_2PO_3^-(aq)+H2O(l)\rightarrow H_3PO_3(aq)+OH^-(aq)

H_2PO_3^- is Bronsted Lowry base.It accepts protons and forms conjugate acid H_3PO_3

H_2O is Bronsted Lowry acid.It donates protons and forms conjugate base OH^-

(CH_3)_2NH(g)+BF_3(g)\rightarrow (CH_3)_2NHBF_3(s)

There in no exchange of proton in an above reaction.Neither of the reactants and products are Bronsted Lowry acid or Bronsted Lowry base

5 0
3 years ago
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