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Marizza181 [45]
3 years ago
6

Classify each of the following chemical reactions.

Chemistry
2 answers:
natulia [17]3 years ago
7 0
1. Synthesis or Combination reaction
2. Double replacement reaction
3. Single Replacement reaction
4. Decomposition reaction

Please mark as brainliest if this helped!
rusak2 [61]3 years ago
3 0

Answer:

1. Synthesis or Combustion reaction

2. Double replacement reaction

3. Single Replacement reaction

4. Decomposition reaction

Explanation:

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igneous rock that cools very quickly when it forms may have a texture that is______and______with no visible____
Fudgin [204]
<span>Igneous rock that cools very quickly when it forms may have a texture that is smooth and shiny with no visible grain.</span>
6 0
3 years ago
A scientist digs up sample of arctic ice that is 458,000 years old. He takes it to his lab and finds that it contains 1.675 gram
Fiesta28 [93]

Answer:

6.70 grams of krypton-81 was present when the ice first formed

Explanation:

Let use the below formula to find the amount of sample

N= N_0(\frac{1}{2})^n

where

n = \frac{t}{t_{\frac{1}{2}}}

here

t =  458,000 years

t_{\frac{1}{2}} = 229,000

\frac{t}{t_{\frac{1}{2}}} = \\frac{ 458,000}{229,000}

n = \frac{t}{t_{\frac{1}{2}}} = 2.000

Now substituting the values

1.675 = N_0(\frac{1}{2})^{2.000}}

1.675 = N_0\times (0.2500)

N_0= \frac{1.675}{0.2500}

N_0=6.70

3 0
3 years ago
The balanced equation for photosynthesis is shown below.
klio [65]
The true answer is: It's conserved because the total number of H atoms on each side is 12.
the first two answer is wrong because it's conserved not as mentioned, It's not conserved.

and the last one also wrong because the total number of O atoms are equal at the two sides but not equal 2.

3 0
3 years ago
Read 2 more answers
suppose that you are comparing several objects. is it correct to say that the object with the largest volume has the largest mas
Semmy [17]

Answer:

No

Explanation:

It is not correct to say that an object with the largest volume has the largest mass.

Mass and volume are not directly related. In fact, the relationship between them can be direct or inverse.

Mass is the amount of matter in a substance. Volume is the space a body occupies.

  • A balloon and a stone for example is a typical one.
  • A balloon has more volume but far lesser mass compared to a stone.
  • A stone, gravel sized has low volume but more massive than a balloon.

Therefore, it is wrong to say a balloon has more mass because it has more volume.

3 0
2 years ago
URGENT! 15 POINTS, WILL MARK BRAINLIEST
Virty [35]

Answer:

Explanation:

A. Linear Relationships

x 2     4       6       8     10     12

y 4.4  8.8  13.2  17.6   22  26.4

(you can plot this by using the (x,y) coordinates for each pair above.)

B. y=2.2x

mass is 2.2 times larger than the volume.

C. The mass is 2.2 times the volume.

3 0
3 years ago
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