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GuDViN [60]
3 years ago
13

In Antoine Lavoisier’s classic experiment, mercuric oxide is heated in a sealed container. The solid red powder is changed into

two products: silver liquid mercury and oxygen gas. If Lavoisier heated 100 grams of powdered mercuric oxide to produce 93 grams of liquid mercury, how much oxygen would be released? A) 7 grams B) 16 grams Reactivate C) 32 grams D) 93 grams
SAT
1 answer:
never [62]3 years ago
8 0

Answer:

<em>A ) 7 GRAMS</em>

Explanation:

7 grams.

The sum of the reactants must equal the sum of the products.

Reactant = 100 grams

Products = 100 g mercuric oxide - 93 g mercury which equals 7 grams oxygen.

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ive numbers have a mean of 12. When one number is removed, the mean is 11.What is the value of the number removed?
motikmotik

Answer:  10

Explanation:

When the number removed, the mean change from 12 to 11, so we assume that the removed number, x, has related to the median.

To find the removed number x, we sat their average equal to 11.

(12 + x) /2 = 11

12 + x = 22

x = 10

5 0
2 years ago
Federalists and anti-federalists made different arguments about the new government. Drag each argument to the correct group.
dalvyx [7]
<h3>Arguments of the Federalist</h3>

The Federalists were the group that argued in favor of a central government.

  • They wanted a government that had a central power
  • They wanted balance in the three branches of government that existed.
  • They wanted these three branches to protect the rights of the people of the United States.

<h3>Arguments of the Anti-Federalists.</h3>

The anti-federalists were the groups that did not support a strong federal government.

  • They argued that a strong federal government would take power away from the state and the local governments.
  • They argued that the federal government would be too far away to know and meet the needs of citizens in the country.
  • They argued about a lack of a bill of rights for the people in the constitution.

Read more about the Federalists and anti-federalists here:

brainly.com/question/16711172?referrer=searchResults

7 0
3 years ago
The triangles below are similar. The ratio of the lengths of corresponding sides is 49 . a. What is the ratio (smaller to larger
Alik [6]

Answer:

a.) 4 : 9

b.) 16 : 81

Explanation:

a.) Ratio of perimeter will still be

4 : 9

b.) The two similar triangles  ΔABC and ΔDEF as shown from the attached figures. That is

AB/DE = AC/DF = BC/EF

It is apparent that ΔAPB and ΔDEQ are also similar as all respective angles are equal. Hence,

AB/DE = AP/DQ = BP/EQ

Moreso ΔABC = 1/2 × BC × AP  and   ΔDEF = 1/2 × EF × DQ and

ΔAPB/ΔDEQ = BC/EF × AP/DQ

But 

AP/DQ = AB/DE = BC/EF

 and hence

ΔAPB/ΔDEQ = BC/EF × BC/EF

= BC^2/EF^2  and as

BC/EF = AC/DF = AB/DE

ΔAPB/ΔDEQ = AC^2/DF^2 = BC^2/EF^2

= AB^2/DE^2

Hence if sides of two similar triangles are in the ratio a:b, their areas are in the proportion a^2:b^2

As in given case sides are in the ratio of 4:9.

ratio of their areas is 4^2:9^2 or 16:81.

8 0
3 years ago
What is the answer for the question
Gre4nikov [31]

A curriculum based on the idea of educating students in four specific disciplines science, technology, engineering, and mathematics

8 0
3 years ago
Florence is 45 years old, and she makes $65,000 per year. if florence were to die, how much would the beneficiaries of her life
ki77a [65]

Answer: she would receive 39,000 and that is 60% of her incomeExplanation: Now as you can she is making 65,000 per year. So you multiply 65,000 with 60/100. You make 60% into 60/100 because it's a percent and a decimal. Like I was saying if you multiply 65,000 with 60/100 you will get 39,000 which is 60% of her tax income

if my answer is incorrect or if i made a mistake pls let me know, please and thank you :)

7 0
2 years ago
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