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vlabodo [156]
3 years ago
8

During gymnosperm reproduction, which structure produces a sticky liquid?

Chemistry
1 answer:
ella [17]3 years ago
7 0

Answer: ovule

Explanation:

I got it right

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Which of the following describes a boiling point?
Bess [88]

Answer:

Phase change from a liquid to a gas occurring at a specific  temperature and pressure

Explanation:

Boiling is a physical process in which a substance changes its state from liquid to vapor state.

In this context ,boiling point is the threshold temperature at which changes of state from liquid to vapor occurs. The boiling point also depends upon atmospheric pressure of environment as well. For the same substance, boiling point at  two different pressure will differ significantly.

For example : Boiling point of water at sea level is 100 degree Celsius

while at 6,250 ft , Boiling point of water  is 93.4 degree Celsius.

Based on above discussion option B Phase change from a liquid to a gas occurring at a specific  temperature and pressure is the correct answer.

3 0
3 years ago
Please help me, also I have other unanswered questions similar to this one if you can help I'd greatly appreciate it. got until
mart [117]

Answer:

C. Br and Cl

Explanation:

The pair that will share electrons when a bond forms between them is Br and Cl.

When electrons are shared between two atoms to form a bond, then the bond type formed is called a covalent bond.

  • A covalent bond forms between non-metals.
  • Br and Cl are non-metals
  • The electronegativity difference between the species must be very low or zero.
  • This is the case for the two non-metals.
7 0
3 years ago
Read 2 more answers
Which of the following can be characterized as a physical change?
Taya2010 [7]

Answer:

D. Sweat evaporates from your skin

Explanation:

A physical change is a reversible process, no new substance is formed. A physical change does not affect the chemical composition of a substance.

Sweat evaporation from the skin is a physical change, because the change that occur is merely a change of state, Liquid to Gaseous state, no new substance is formed.

7 0
4 years ago
A compound contains 64g of O and 8g of H. what is the empirical formula for this compound
iren [92.7K]

Explanation:

Moles of Oxygen = 64/16 = 4

Moles of Hydrogen = 8/1 = 8

Hence the empirical formula is H2O.

5 0
3 years ago
Which is heavier Calcium (Ca) or Silicon (Si)
ki77a [65]

Answer:

Calcium is heavier a little bit

3 0
4 years ago
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