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kap26 [50]
3 years ago
12

Recording a person’s fingerprints using ink or digital imaging is called a(n)____.

Chemistry
1 answer:
NNADVOKAT [17]3 years ago
5 0
It is called a dactyloscopy
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How much sodium bicarbonate to raise alkalinity in pool.
almond37 [142]

Answer:

A rule of thumb is that 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool's pH is tested below 7.2, add 3-4 pounds of baking soda. If you're new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount.

4 0
2 years ago
Distinguish between kinetic energy<br> and poteintial energy-
topjm [15]

Answer:

kinetic energy is energy possessed due to its motion while potential energy is energy possessed by a body by virtue of its position relative to others

6 0
3 years ago
A3B8 + C2 ---&gt; AC2 +
AURORKA [14]

Answer:

A₃B₈ + 5C₂ –> 3AC₂ + 4B₂C

Explanation:

A₃B₈ + C₂ –> AC₂ + B₂C

The equation can be balance as illustrated below:

A₃B₈ + C₂ –> AC₂ + B₂C

There are 3 atoms of A on the left side and 1 atom on the right side. It can be balance by writing 3 before AC₂ as shown below:

A₃B₈ + C₂ –> 3AC₂ + B₂C

There are 8 atoms of B on the left side and 2 atoms on the right side. It can be balance by writing 4 before B₂C as shown below:

A₃B₈ + C₂ –> 3AC₂ + 4B₂C

There are 2 atoms of C on the left side and a total of 10 atoms on the right side. It can be balance by writing 5 before C₂ as shown below:

A₃B₈ + 5C₂ –> 3AC₂ + 4B₂C

Now, the equation is balanced.

5 0
3 years ago
Definition of science
lutik1710 [3]

Answer: science is the systematic way of gaining knowledge about nature

3 0
4 years ago
Which of these statements best describes the relationship between matter, pure substances, and mixtures?
borishaifa [10]
The answer you are looking for is the second option, "<span>Matter can be divided into two groups: pure substances and mixtures."

A pure substance can describe a pure element or chemically bonded elements. A pure substance cannot be broken down into further substances. An example of these would be Fe (iron) or O2 (oxygen).

A mixture is a structure made from physically combining different non-bonded substances. An example of a mixture is blood.

Both pure substances and mixtures are types of matter.</span>
3 0
3 years ago
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