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Arlecino [84]
3 years ago
8

What happens at this point

Chemistry
2 answers:
777dan777 [17]3 years ago
8 0

Answer:

What are you referring to exactly

Explanation:

anzhelika [568]3 years ago
4 0

Answer:  C

Explanation:

There is a difference in air pressure.  That's what I put and I got a 92.

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It has been hypothesized that a chemical known as BW prevents colds. To test this hypothesis, 20,000 volunteers were divided int
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Grams of BW

i think thats irtu9rgirg

8 0
3 years ago
Consider the word equation. Calcium hydroxide hydrochloric acid mc012-1. Jpg calcium chloride water Which is the corresponding f
dimulka [17.4K]

The corresponding formula equation is:

Upper Ca (upper OH) subscript 2 (s) plus 2 upper H upper Cl (l) right arrow upper Ca upper Cl subscript 2 (aq) plus 2 upper H subscript 2 upper O (l)

To obtain the word equation, we shall write out the balanced molecular equation. This is given below:

Calcium hydroxide => Ca(OH)₂

Hydrochloric => HCl

Calcium chloride => CaCl₂

Water => H₂O

Calcium hydroxide + Hydrochloric —> Calcium chloride + water

Ca(OH)₂ + HCl —> CaCl₂ + H₂O

There are 2 atoms of Cl on the right side and 1 atom on the left. It can be balance by writing 2 before HCl as shown below:

Ca(OH)₂ + 2HCl —> CaCl₂ + H₂O

There are a total of 4 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 2 before H₂O as shown below:

Ca(OH)₂ + 2HCl —> CaCl₂ + 2H₂O

Now, the equation is balanced.

Thus, the corresponding word equation is:

Upper Ca (upper OH) subscript 2 (s) plus 2 upper H upper Cl (l) right arrow upper Ca upper Cl subscript 2 (aq) plus 2 upper H subscript 2 upper O (l)

Learn more about balancing equation: brainly.com/question/15538713

8 0
2 years ago
Read 2 more answers
How many mg of calcium are present in a 500-mg tablet of calcium carbonate?​?
Setler79 [48]

The molar mass of calcium carbonate is 100 mg/mmol, so the number of moles is:

moles CaCO3 = 500 mg / (100 mg/mmol) = 5 mmol

We see that there is 1 mole of Ca per 1 mole of CaCO3, therefore:

<span>mass Ca = 5 mmol * (40.08 mg/mmol) = 200.22 mg</span>

3 0
3 years ago
Evaluate the following: 3.7 x 102m x 2.9 x 108 m
yulyashka [42]

Answer:

118201.68m6^2

Explanation: scientific notation

6 0
3 years ago
How many nitrogen atoms are in 2 formula units of magnesium nitrate?
nadya68 [22]
Answer is: 4 atoms of nitrogen.
One formula unit of magnesium nitrate (Mg(NO₃)₂) has two atoms of nitrogen, so two formula units of magnesium nitrate will have four atoms of nitrogen (2·2=4).
Oxidation number of magnesium in magnesium nitrate is +2 and oxidation number of nitrate anion is -1 (2·(-1) = -2).
5 0
4 years ago
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