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BARSIC [14]
2 years ago
7

When a cold front passes, the air temperature should begin to rise true or false?

Chemistry
2 answers:
sleet_krkn [62]2 years ago
7 0
False the opposite should happen!
Step2247 [10]2 years ago
5 0

Answer:

false

Explanation:

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What would be your best course of action if exposed to this hazard?
Olenka [21]

Answer: Option C) Rinse the affected area with cool water for 10-15 minutes.

Explanation:

Once exposed to burns, whether chemical or heat, rinse the affected area of the body with cool water, as water is known to dissolve all burning particles attached to the skin, and cool off the blood vessels lying beneath the burned surface.

Unlike other options provided, rinsing affected area with cool water is the best first aid for skin burns

6 0
3 years ago
A liquid has a density of 0.87g/ml. What volume is occupied by 25g of liquid
irga5000 [103]

Answer:

29 mL

Explanation:

<h3>Equation</h3>

The question needs us to find the volume of the liquid. The equation for volume using density and mass is:

Volume = Mass / Density

<h3>Solve</h3>

We can substitute the given values for density and mass into the equation:

V=\frac{25\ g}{0.87\ g/ml}

V\approx29\ mL

<h3>Additional Comments</h3>

The answer we obtained (29 mL) is rounded to two significant figures. When multiplying or dividing, the amount of significant figures in the final answer is always the least amount of significant figures in one of the values.

Below are the significant figure rules:

Nonzero digits will always be significant (eg. 54 --> 2 significant figures)

Zeroes at the beginning of a number will never be significant (eg. 0.1 --> 1 significant figure)

Zeroes between two nonzero digits will always be significant (eg. 504 --> 3 significant figures)

Zeroes following a number will always be significant if the number contains a decimal point (eg. 40.0 --> 3 significant figures)

5 0
2 years ago
The picture is above^ someone help me please :)
Ronch [10]

Answer:

idk plz do not report

Explanation:

8 0
3 years ago
Write the chemical symbol for three different atoms or atomic cations with 22 electrons
damaskus [11]

Answer:

Explanation:

To write the chemical symbol for an atom or cation with 22 electrons, we must understand some few things about an atom.

An atom is made up of positively charged paticles called protons which are located in the nucleus. The neutrons do not have any charges and are they reside together in the nucleus with the protons.

Electrons are negatively charged particles which orbits the nucleus.

Titanium in its neutral state is the 22nd element on the periodic table and it has 22 electrons.

Vanadium is the the 23rd element on the periodic table. If it loses an electron, it becomes positively charged and it is a cation.

Chromium is the 24th element on the periodic table. A loss of two electrons makes the net electrons remaining on it 22.

The symbols are:

       ₂₂Ti

        ₂₃V¹⁺

        ₂₄Cr²⁺

6 0
3 years ago
Please answer this skskskskskksmsk
Sveta_85 [38]

Answer:see attached photo for answer

Explanation:cell division occurs to produce new cells from preexisting ones. the new cells are called daughter cells.the old cells are called parent cells.cell division may be mitosis or meiosis. Mitosis occurs in a somatic cell and produce four daughter cell. Meiosis occurs in sex cells and produce two daughter cells. Cell division usually involves Prophase, metaphase, anaphase and telophase.

Cell division occurs to ensure the continous existence of life.

Mitosis involve producing daughter cells with the same number of chromosomes as the parent cells while meiosis involves producing daughter cells with Half number of chromosomes.

4 0
3 years ago
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