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aalyn [17]
3 years ago
6

I need help with this.

Chemistry
1 answer:
mezya [45]3 years ago
5 0
Texas has a capital H over it. In weather, a capital red H is an area of high pressure. High pressure areas have sunny, warm weather.


An area with a blue L over it means an area of low pressure and that means stormy weather.

Good luck :) !


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What types of radiation cause the parent isotope to change into a different element?
kvv77 [185]

Answer:

Beta decay is most common in elements with a high neutron to proton ratio. Gamma decay follows the form: In gamma emission, neither the atomic number or the mass number is changed. A high energy gamma ray is given off when the parent isotope falls into a lower energy state.

Explanation:

pls mark me as brainliest

3 0
3 years ago
What is the density of a liquid if it's volume is 125 mL and it's mass is 50g?
masha68 [24]

Answer:

0.4g/ml

Explanation:

density= mass/volume

density=50g/125ml

density=0.4g/ml

6 0
3 years ago
A sample of urea contains 1.121 g of N, 0.161 g of H, 0.48 g of C, and 0.64 g of O. What is the empirical formula of urea?
dybincka [34]

Answer:

The empirical formula is N2 CH4 O

Explanation:

5 0
3 years ago
What are the solutions to the equation x2 + 4x + 5 = 0?​
dusya [7]

Answer:

-1, -4

Explanation:

x^2+4x+5=0

Factoring, you get:

(x+4)(x+1)=0

To find what x can be, you need to realize what could make this equation true. To set the left side equal to 0, either one of the terms in parentheses must be equal to 0. To do that, x must be the negative of the other term, so that they can cancel each other out. Therefore, x is -4 and -1. Hope this helps!

4 0
3 years ago
Read 2 more answers
Explain why changes of state are physical changes.
kaheart [24]

Solution: Change in state of matter is a physical change because of the physical condition and appearance changes but not the chemical composition.

6 0
3 years ago
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